OHTANI Bunsho

J-GLOBAL         Last updated: Jan 13, 2019 at 21:26
 
Avatar
Name
OHTANI Bunsho
URL
http://www.hucc.hokudai.ac.jp/~k15391/
Affiliation
Hokkaido University
Section
Catalysis Research Center
Job title
Professor

Research Areas

 
 

Academic & Professional Experience

 
1985
   
 
- Research Associate
 
1996
   
 
- Associate Professor
 
1998
   
 
- Professor
 

Education

 
 
 - 
1981
Graduate School, Division of Engineering, Kyoto University
 
 
 - 
1985
Graduate School, Division of Engineering, Kyoto University
 
 
 - 
1979
Faculty of Engineering, Kyoto University
 

Awards & Honors

 
Mar 2018
The Award of The Electrochemical Society (Takei Award), 2018, The Electrochemical Society of Japan
 
Sep 2017
Revisiting heterogeneous photocatalysis from the standpoint of photochemistry, Lectureship Award 2017, The Japanese Photochemistry Association
 
Mar 2014
Catalysis Society of Japan Award for 2013, Catalysis Society of Japan
 
Sep 2006
The Japanese Photochemistry Association Award, 2006, Japanese Photochemistry Association
 
Apr 2005
2005 Scientific Achievement Award of The Electrochemical Society of Japan, The Electrochemical Society of Japan
 

Published Papers

 
Ohtani Bunsho
FRONTIERS IN CHEMISTRY   5    Oct 2017   [Refereed]
Nitta Akio, Takashima Mai, Takase Mai, Ohtani Bunsho
CATALYSIS TODAY   321 2-8   Feb 2019   [Refereed]
Hori Haruna, Takashima Mai, Takase Mai, Ohtani Bunsho
CHEMISTRY LETTERS   46(9) 1376-1378   Sep 2017   [Refereed]
Endo Maya, Janczarek Marcin, Wei Zhishun, Wang Kunlei, Markowska-Szczupak Agata, Ohtani Bunsho, Kowalska Ewa
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY   19(1) 442-452   Jan 2019   [Refereed]
Parnicka Patrycja, Mazierski Pawel, Grzyb Tomasz, Wei Zhishun, Kowalska Ewa, Ohtani Bunsho, Lisowski Wojciech, Klimczuk Tomasz, Nadolna Joanna
JOURNAL OF CATALYSIS   353 211-222   Sep 2017   [Refereed]
Wei Zhishun, Janczarek Marcin, Endo Maya, Wang Kunlei, Balcytis Armandas, Nitta Akio, Mendez-Medrano Maria G., Colbeau-Justin Christophe, Juodkazis Saulius, Ohtani Bunsho, Kowalska Ewa
APPLIED CATALYSIS B-ENVIRONMENTAL   237 574-587   Dec 2018   [Refereed]
Hara Yoshiki, Takashima Toshihiro, Kobayashi Ryoya, Abeyrathna Sameera, Ohtani Bunsho, Irie Hiroshi
APPLIED CATALYSIS B-ENVIRONMENTAL   209 663-668   Jul 2017   [Refereed]
Malankowska Anna, Kobylanski Marek P., Mikolajczyk Alicja, Cavdar Onur, Nowaczyk Grzegorz, Jarek Marcin, Lisowski Wojciech, Michalska Monika, Kowalska Ewa, Ohtani Bunsho, Zaleska-Medynska Adriana
ACS SUSTAINABLE CHEMISTRY & ENGINEERING   6(12) 16665-16682   Dec 2018   [Refereed]
Luna Ana L., Dragoe Diana, Wang Kunlei, Beaunier Patricia, Kowalska Ewa, Ohtani Bunsho, Bahena Uribe Daniel, Valenzuela Miguel A., Remita Hynd, Colbeau-Justin Christophe
JOURNAL OF PHYSICAL CHEMISTRY C   121(26) 14302-14311   Jul 2017   [Refereed]
Bajorowicz Beata, Kowalska Ewa, Nadolna Joanna, Wei Zhishun, Endo Maya, Ohtani Bunsho, Zaleska-Medynska Adriana
DALTON TRANSACTIONS   47(42) 15232-15245   Nov 2018   [Refereed]
Chandren Sheela, Ismail Kamarulafizam, Nur Hadi, Ohtani Bunsho
APPLIED SCIENCES-BASEL   7(7)    Jul 2017   [Refereed]
Kobayashi Kenta, Takashima Mai, Takase Mai, Ohtani Bunsho
CATALYSTS   8(11)    Nov 2018   [Refereed]
Shiraishi Yasuhiro, Yasumoto Naoki, Imai Jun, Sakamoto Hirokatsu, Tanaka Shunsuke, Ichikawa Satoshi, Ohtani Bunsho, Hirai Takayuki
NANOSCALE   9(24) 8349-8361   Jun 2017   [Refereed]
Hori Haruna, Takashima Mai, Takase Mai, Ohtani Bunsho
CATALYSIS TODAY   313 218-223   Sep 2018   [Refereed]
Wei Zhishun, Rosa Lorenzo, Wang Kunlei, Endo Maya, Juodkazis Saulius, Ohtani Bunsho, Kowalska Ewa
APPLIED CATALYSIS B-ENVIRONMENTAL   206 393-405   Jun 2017   [Refereed]
Rosman Nurafiqah, Salleh Wan Norharyati Wan, Ismail Ahmad Fauzi, Jaafar Juhana, Harun Zawati, Aziz Farhana, Mohamed Mohamad Azuwa, Ohtani Bunsho, Takashima Mai
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY   364 602-612   Sep 2018   [Refereed]
Janczarek Marcin, Wei Zhishun, Endo Maya, Ohtani Bunsho, Kowalska Ewa
JOURNAL OF PHOTONICS FOR ENERGY   7(1)    Jan 2017   [Refereed]
Wanag Agnieszka, Kusiak-Nejman Ewelina, Kowalczyk Lukasz, Kapica-Kozar Joanna, Ohtani Bunsho, Morawski Antoni W.
APPLIED SURFACE SCIENCE   437 441-450   Apr 2018   [Refereed]
Ohtani Bunsho
CATALYSTS   6(12)    Dec 2016   [Refereed]
Wang Kunlei, Wei Zhishun, Ohtani Bunsho, Kowalska Ewa
CATALYSIS TODAY   303 327-333   Apr 2018   [Refereed]
Kobayashi Ryoya, Takashima Toshihiro, Tanigawa Satoshi, Takeuchi Shugo, Ohtani Bunsho, Irie Hiroshi
PHYSICAL CHEMISTRY CHEMICAL PHYSICS   18(40) 27754-27760   Oct 2016   [Refereed]
Hori Haruna, Takashima Mai, Takase Mai, Kitamura Mika, Amano Fumiaki, Ohtani Bunsho
CATALYSIS TODAY   303 341-349   Apr 2018   [Refereed]
Luna Ana L., Novoseltceva Ekaterina, Louarn Essyllt, Beaunier Patricia, Kowalska Ewa, Ohtani Bunsho, Valenzuela Miguel A., Remita Hynd, Colbeau-Justin Christophe
APPLIED CATALYSIS B-ENVIRONMENTAL   191 18-28   Aug 2016   [Refereed]
Ketwong Pradudnet, Takashima Mai, Nitta Akio, Pookmanee Pusit, Ohtani Bunsho
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING   6(2) 2048-2054   Apr 2018   [Refereed]
Ohnuma Akira, Yamamoto Hiroki, Kozawa Takahiro, Ohtani Bunsho
CHEMISTRY LETTERS   45(8) 979-981   Aug 2016   [Refereed]
Endo Maya, Wei Zhishun, Wang Kunlei, Karabiyik Baris, Yoshiiri Kenta, Rokicka Paulina, Ohtani Bunsho, Markowska-Szczupak Agata, Kowalska Ewa
BEILSTEIN JOURNAL OF NANOTECHNOLOGY   9 829-841   Mar 2018   [Refereed]
Mono- and Dual-modified Titania with a Ruthenium(II) Complex and Silver Nanoparticles for Photocatalytic Degradation of Organic Compounds
Zheng Shuaizhi, Wang Kunlei, Wei Zhishun, Yoshiiri Kenta, Braumueller Markus, Rau Sven, Ohtani Bunsho, Kowalska Ewa
JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES   19(2) 208-217   Jul 2016   [Refereed]
Takeuchi Shugo, Takashima Mai, Takase Mai, Ohtani Bunsho
CHEMISTRY LETTERS   47(3) 373-376   Mar 2018   [Refereed]
Amano Fumiaki, Ohtani Bunsho, Yoshida Hisao
JOURNAL OF ELECTROANALYTICAL CHEMISTRY   766 100-106   Apr 2016   [Refereed]
Nitta Akio, Takashima Mai, Murakami Naoya, Takase Mai, Ohtani Bunsho
ELECTROCHIMICA ACTA   264 83-90   Feb 2018   [Refereed]
Janczarek Marcin, Kowalska Ewa, Ohtani Bunsho
CHEMICAL ENGINEERING JOURNAL   289 502-512   Apr 2016   [Refereed]
Parnicka Patrycja, Mazierski Pawel, Grzyb Tomasz, Lisowski Wojciech, Kowalska Ewa, Ohtani Bunsho, Zaleska-Medynska Adriana, Nadolna Joanna
BEILSTEIN JOURNAL OF NANOTECHNOLOGY   9 447-459   Feb 2018   [Refereed]
Tomita Osamu, Otsubo Takahide, Higashi Masanobu, Ohtani Bunsho, Abe Ryu
ACS CATALYSIS   6(2) 1134-1144   Feb 2016   [Refereed]
Tryba Beata, Wozniak Magdalena, Zolnierkiewicz Grzegorz, Guskos Nikos, Morawski Antoni, Colbeau-Justin Christophe, Wrobel Rafal, Nitta Akio, Ohtani Bunsho
CATALYSTS   8(2)    Feb 2018   [Refereed]
Reszczynska Joanna, Grzyb Tomasz, Wei Zhishun, Klein Marek, Kowalska Ewa, Ohtani Bunsho, Zaleska-Medynska Adriana
APPLIED CATALYSIS B-ENVIRONMENTAL   181 825-837   Feb 2016   [Refereed]
Shirai Kenji, Fazio Gianluca, Sugimoto Toshiki, Selli Daniele, Ferraro Lorenzo, Watanabe Kazuya, Haruta Mitsutaka, Ohtani Bunsho, Kurata Hiroki, Di Valentin Cristiana, Matsumoto Yoshiyasu
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   140(4) 1415-1422   Jan 2018   [Refereed]
Uemura Yohei, Kido Daiki, Wakisaka Yuki, Uehara Hiromitsu, Ohba Tadashi, Niwa Yasuhiro, Nozawa Shunsuke, Sato Tokushi, Ichiyanagi Kohei, Fukaya Ryo, Adachi Shin-ichi, Katayama Tetsuo, Togashi Tadashi, Owada Sigeki, Ogawa Kanade, Yabashi Makina, Hatada Keisuke, Takakusagi Satoru, Yokoyama Toshihiko, Ohtani Bunsho, Asakura Kiyotaka
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   55(4) 1364-1367   Jan 2016   [Refereed]
Yamamoto Hiroki, Ohnuma Akira, Ohtani Bunsho, Kozawa Takahiro
JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY   29(5) 765-768   2016   [Refereed]
Zheng Shuaizhi, Wei Zhishun, Yoshiiri Kenta, Braumueller Markus, Ohtani Bunsho, Rau Sven, Kowalska Ewa
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES   15(1) 69-79   2016   [Refereed]
Kobayashi Ryoya, Kurihara Kazuki, Takashima Toshihiro, Ohtani Bunsho, Irie Hiroshi
JOURNAL OF MATERIALS CHEMISTRY A   4(8) 3061-3067   2016   [Refereed]
Nitta Akio, Takase Mai, Takashima Mai, Murakamid Naoya, Ohtani Bunsho
CHEMICAL COMMUNICATIONS   52(81) 12096-12099   2016   [Refereed]
Hori Haruna, Takase Mai, Amano Fumiaki, Ohtani Bunsho
CHEMISTRY LETTERS   44(12) 1723-1725   Dec 2015   [Refereed]
Markowska-Szczupak Agata, Wang Kunlei, Rokicka Paulina, Endo Maya, Wei Zhishun, Ohtani Bunsho, Morawski Antoni W., Kowalska Ewa
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY   151 54-62   Oct 2015   [Refereed]
Joanna Kuncewicz, Bunsho Ohtani
Chemical Communications   51(2) 298-301   Jan 2015   [Refereed]
© 2015 The Royal Society of Chemistry. Titania particles modified with an extremely small amount (<0.01 mol%) of a rhodium species exhibited photocatalytic activity for the oxidative decomposition of acetaldehyde in air under visible-light irradia...
Joanna Reszczyńska, Joanna Reszczyńska, Tomasz Grzyb, Janusz W. Sobczak, Wojciech Lisowski, Maria Gazda, Bunsho Ohtani, Adriana Zaleska
Applied Catalysis B: Environmental   163 40-49   Jan 2015   [Refereed]
A series of Er3+-TiO2, Yb3+-TiO2 and Er3+/Yb3+-TiO2 photocatalysts were obtained via sol-gel method, using lanthanides precursor ranging from 0.25 to 10mol%. The experiments demonstrated that phenol in aqueous solutions was successfully degraded u...
Hiroaki Hirakawa, Miyu Katayama, Yasuhiro Shiraishi, Yasuhiro Shiraishi, Hirokatsu Sakamoto, Kunlei Wang, Bunsho Ohtani, Satoshi Ichikawa, Shunsuke Tanaka, Takayuki Hirai
ACS Applied Materials and Interfaces   7(6) 3797-3806   Jan 2015   [Refereed]
© 2015 American Chemical Society. Photoirradiation (λ > 300 nm) of Degussa (Evonik) P25 TiO2, a mixture of anatase and rutile particles, in alcohols containing nitroaromatics at room temperature produces the corresponding imines with very high yie...
Wei Zhishun, Kowalska Ewa, Verrett Jonathan, Colbeau-Justin Christophe, Remita Hynd, Ohtani Bunsho
NANOSCALE   7(29) 12392-12404   2015   [Refereed]
Ilmi Irfan, Kartini Indriana, Ohtani Bunsho, Suyanta, Wang Kunlei
5TH INTERNATIONAL CONFERENCE ON MATHEMATICS AND NATURAL SCIENCES (ICMNS 2014)   1677    2015   [Refereed]
Zhishun Wei, Ewa Kowalska, Bunsho Ohtani
Molecules   19(12) 19573-19587   Dec 2014   [Refereed]
© 2014 by the authors; licensee MDPI, Basel, Switzerland. The influence of changes in structural and physical properties on the photocatalytic activity of octahedral anatase particles (OAPs), exposing eight equivalent {101} facets, caused by calci...
Dozzi Maria Vittoria, Artiglia Luca, Granozzi Gaetano, Ohtani Bunsho, Selli Elena
JOURNAL OF PHYSICAL CHEMISTRY C   118(44) 25579-25589   Nov 2014   [Refereed]
Osamu Tomita, Osamu Tomita, Bunsho Ohtani, Ryu Abe, Ryu Abe
Catalysis Science and Technology   4(11) 3850-3860   Nov 2014   [Refereed]
© the Partner Organisations 2014. Particles of tungsten oxide loaded with nanoparticulate platinum (Pt/WO3) photocatalytically produced phenol from benzene with high selectivity (e.g., 74% at 69% of benzene conversion) in water containing molecula...
Ohtani Bunsho
ELECTROCHEMISTRY   82(9) 711   Sep 2014   [Refereed]
Joanna Reszczyńska, Joanna Reszczyńska, Tomasz Grzyb, Janusz W. Sobczak, Wojciech Lisowski, Maria Gazda, Bunsho Ohtani, Adriana Zaleska
Applied Surface Science   307 333-345   Jul 2014   [Refereed]
Preparation of new rare earth metal-containing TiO2 nanocomposites (Nd3+/Er3+, Nd3+/Eu 3+, Eu3+/Ho3+-TiO2) using sol-gel route and their photoactivity under visible and ultraviolet light is reported. The obtained photocatalysts were subsequently c...
Ewa Kowalska, Ewa Kowalska, Kenta Yoshiiri, Zhishun Wei, Shuaizhi Zheng, Evelyn Kastl, Hynd Remita, Bunsho Ohtani, Bunsho Ohtani, Sven Rau
Applied Catalysis B: Environmental   178 133-143   Jul 2014   [Refereed]
© 2014 Elsevier B.V. Plasmonic photocatalysts were prepared by deposition of 2wt% of gold or silver nanoparticles (NPs) on commercial titania particles with different structural properties. Ruthenium(II) complexes with phosphonic and carboxylic ac...
Hiroki Yamamoto, Akira Ohnuma, Akira Ohnuma, Bunsho Ohtani, Takahiro Kozawa
Microelectronic Engineering   121 108-112   Jun 2014   [Refereed]
A novel facile method is described for controlled arrays of gold (Au) nanoparticles capped with protecting ligand on Au nanopatterns fabricated by electron beam lithography and lift-off. We succeeded in nano reaction field which is controlled arra...
Zhishun Wei, Ewa Kowalska, Ewa Kowalska, Bunsho Ohtani, Bunsho Ohtani
Chemistry Letters   43(3) 346-348   Mar 2014   [Refereed]
Titania samples containing octahedral anatase particles (OAPs) were prepared by the ultrasonication-hydrothermal process of partially proton-exchanged potassium titanate nanowires. It was found that increase in the ultrasonication time changed the...
Bunsho Ohtani
Physical Chemistry Chemical Physics   16(5) 1788-1797   Feb 2014   [Refereed]
Although the history of photocatalysis research is not so long, many researchers have studied photocatalysis and a large number of papers on photocatalysis have been published. The objectives of this review paper are to revisit the fundamentals of...
Ryoya Kobayashi, Satoshi Tanigawa, Toshihiro Takashima, Bunsho Ohtani, Hiroshi Irie, Hiroshi Irie
Journal of Physical Chemistry C   118(39) 22450-22456   Jan 2014   [Refereed]
© 2014 American Chemical Society. Overall pure-water splitting under visible-light irradiation was accomplished utilizing a solid-state heterojunction photocatalyst following the Z-scheme mechanism. Zinc rhodium oxide (ZnRh2O4) and defective silve...
E. Kowalska, Z. Wei, B. Karabiyik, A. Herissan, M. Janczarek, M. Janczarek, M. Endo, A. Markowska-Szczupak, A. Markowska-Szczupak, H. Remita, B. Ohtani
Catalysis Today   252 136-142   May 2015
© 2014 Elsevier B.V. All rights reserved. Commercial titania photocatalysts were modified with 2 wt% of silver by photodeposition. The properties of the samples were characterized by DRS, XPS, XRD, FE-SEM and STEM. The modified samples exhibited a...
Bunsho Ohtani
Electrochemistry   82(6) 414-425   Jan 2014   [Refereed]
Important papers related to photocatalysis published in the early 1980's or before, some of which are not included in databases, e.g., Web of Science, or not digitized in electronic files, are reviewed in chronological order. Metal deposition, dif...
Hiroki Yamamoto, Akira Ohnuma, Akira Ohnuma, Bunsho Ohtani, Takahiro Kozawa
Journal of Photopolymer Science and Technology   27(2) 243-247   Jan 2014   [Refereed]
© 2014SPST. Bottom-up self-assembly has the capacity to overcome the limitation of top down nanofabrication. Recently, nanoparticles or molecules are expected to use as the building blocks. By using them it is desirable to place nanometer sized co...
D. Dolat, S. Mozia, R. J. Wróbel, D. Moszyński, B. Ohtani, N. Guskos, A. W. Morawski
Applied Catalysis B: Environmental   162 310-318   Jan 2015
A comparison study of metal (Fe, Co, or Ni) - modification, nitrogen - doping of rutile titanium dioxide via impregnation followed by calcination method is presented. The aim of this study was to obtain a highly photoactive rutile titanium dioxide...
Yohei Uemura, Yohei Uemura, Hiromitsu Uehara, Yasuhiro Niwa, Shunsuke Nozawa, Tokushi Sato, Shinichi Adachi, Bunsho Ohtani, Satoru Takakusagi, Kiyotaka Asakura
Chemistry Letters   43(7) 977-979   Jan 2014   [Refereed]
The electronic state modification and the decay process of WO3 after photoabsorption were followed using picosecond Xray absorption fine structure (XAFS) spectroscopy. The W d(eg) orbital was filled by transition from the oxygen valence state. The...
Hiroya Homura, Bunsho Ohtani, Ryu Abe, Ryu Abe
Chemistry Letters   43(8) 1195-1197   Jan 2014   [Refereed]
© 2014 The Chemical Society of Japan. Efficient photoanodes of tungsten oxide (WO3) were fabricated on three-dimensional conductive carbon microfiber felts (CMFs). Monolayers of fine WO3particles with a diameter of ca. 150nm were successfully load...
Fumiaki Amano, Fumiaki Amano, Fumiaki Amano, Toshihiro Ebina, Bunsho Ohtani, Bunsho Ohtani
Thin Solid Films   550 340-346   Jan 2014   [Refereed]
The photoelectrochemical properties of electrodeposited p-type copper(I) oxide (Cu2O) films were investigated using methyl viologen (MV 2 +) as an electron acceptor. The pristine Cu2O films were deactivated during the photocathodic reaction as a r...
Maria Vittoria Dozzi, Cosimo D'Andrea, Cosimo D'Andrea, Bunsho Ohtani, Gianluca Valentini, Gianluca Valentini, Elena Selli
Journal of Physical Chemistry C   117(48) 25586-25595   Dec 2013   [Refereed]
Aiming at discerning the role of fluorine from that of nitrogen as a dopant in N,F-codoped TiO2, a series of HF-doped TiO2 photocatalysts were investigated in the decomposition of formic and acetic acid in aqueous suspensions, also as a function o...
Ryu Abe, Ryu Abe, Ryu Abe, Kenichi Shinmei, Nagatoshi Koumura, Kohjiro Hara, Bunsho Ohtani
Journal of the American Chemical Society   135(45) 16872-16884   Nov 2013   [Refereed]
Water splitting into H2 and O2 under visible light was achieved using simple organic dyes such as coumarin and carbazole as photosensitizers on an n-type semiconductor for H2 evolution, a tungsten(VI) oxide (WO3) photocatalyst for O2 evolution, an...
Bunsho Ohtani
Catalysts   3(4) 942-953   Oct 2013   [Refereed]
This short review paper shows the significance of recombination of a photoexcited electron and a hole in conduction and valence bands, respectively, of a titania photocatalyst, since recombination has not yet been fully understood and has not been...
N. Guskos, N. Guskos, S. Glenis, G. Zolnierkiewicz, A. Guskos, J. Typek, P. Berczynski, D. Dolat, B. Grzmil, B. Ohtani, A. W. Morawski
Journal of Alloys and Compounds   606 32-36   Sep 2014
Iron and nitrogen co-modified TiO2, nFe,N-TiO2 (n = 1, 5 and 10 wt.%), nanocomposites were prepared by impregnation of amorphous titanium dioxide with Fe(NO3)3 followed by high temperature calcination (800 °C) in ammonia atmosphere. The nanocompos...
Yuta Nishina, Bunsho Ohtani, Kotaro Kikushima
Beilstein Journal of Organic Chemistry   9 1663-1667   Aug 2013   [Refereed]
The bromination of hydrocarbons with CBr4 as a bromine source, induced by light-emitting diode (LED) irradiation, has been developed. Monobromides were synthesized with high efficiency without the need for any additives, catalysts, heating, or ine...
Lei Ni, Taiki Kitta, Naoya Kumagai, Bunsho Ohtani, Kazuhito Hashimoto, Hiroshi Irie
Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan   121(1415) 563-567   Jul 2013   [Refereed]
We prepared titanium dioxide (TiO2) photocatalysts sensitive to visible light, namely copper(II) [Cu(II)]-grafted tungsten and gallium co-doped TiO2 (Ti1-3xWxGa2x O2, x value is up to 0.12), based on the concept of narrowing the band gap of TiO2 b...
D. Dolat, B. Ohtani, S. Mozia, D. Moszyński, N. Guskos, Z. Lendzion-Bieluń, A. W. Morawski
Chemical Engineering Journal   239 149-157   Mar 2014
A simple way of preparation of Ni-modified and Ni,N-co-modified rutile TiO2 from an industrial grade amorphous titanium dioxide via impregnation followed by calcination at 1073K in argon (Ni-TiO2) or ammonia (Ni,N-TiO2) atmosphere with different N...
Hiroki Yamamoto, Akira Ohnuma, Akira Ohnuma, Bunsho Ohtani, Takahiro Kozawa
Microelectronic Engineering   110 369-373   Apr 2013   [Refereed]
Wepresent a novel and simple method of fabricating patterned arrays of gold (Au) nanoparticles on a nanoscale reaction field by combining electron beam lithography and self-assembly techniques. We succeeded in forming a nanoscale reaction field co...
Maria Vittoria Dozzi, Luca Artiglia, Gaetano Granozzi, Bunsho Ohtani, Elena Selli
Journal of Physical Chemistry C   118 25579-25589   Jan 2014
© 2014 American Chemical Society. TiO2 photocatalysts, either doped with different amounts of fluorine or boron, or codoped with boron and fluorine, were prepared by sol-gel synthesis, followed by calcination at different temperatures (500-700 °C)...
E. Kowalska, M. Janczarek, M. Janczarek, L. Rosa, S. Juodkazis, B. Ohtani
Catalysis Today   230 131-137   Jan 2014
Titania powders were surface modified with gold and/or silver nanoparticles (NPs) by photodeposition method. Gold modified titania exhibited much higher photocatalytic activity during methanol dehydrogenation under UV irradiation than titania modi...
Sihem Helali, Sihem Helali, Maria Inmaculada Polo-López, Pilar Fernández-Ibáñez, Bunsho Ohtani, Fumiaki Amano, Sixto Malato, Chantal Guillard
Journal of Photochemistry and Photobiology A: Chemistry   276 31-40   Feb 2013   [Refereed]
Photocatalytic and photolytic disinfection of Escherichia coli in water was studied under natural sunlight using different types of photocatalyst (TiO 2 P-25, PC500, Ruana and Bi2WO6) at different concentrations. The solar photo-inactivation yield...
Hiroki Yamamoto, Akira Ohnuma, Akira Ohnuma, Bunsho Ohtani, Takahiro Kozawa
Journal of Photopolymer Science and Technology   26(4) 495-499   Sep 2013   [Refereed]
Nanoparticles have unique, size-dependent properties associated with magnetic, photonic, chemical, and electrical behavior, which are different from the properties in their respective bulk materials. Those properties can be controlled through the ...
Motoki Iwase, Keiji Yamada, Tsutomu Kurisaki, Bunsho Ohtani, Hisanobu Wakita
Applied Catalysis B: Environmental   140-141 327-332   Aug 2013   [Refereed]
Phosphorus-doped TiO2 was prepared by doping TiO2 with phosphorus having negative charges.The P-doped TiO2 nanoparticles contain oxygen vacancies.The visible-light activity of the P-TiO2 depended on P content.The correlation between densities of o...
B. Ohtani
New and Future Developments in Catalysis: Solar Photocatalysis   121-144   Jul 2013
Bunsho Ohtani
Journal of Photochemistry and Photobiology C: Photochemistry Reviews   15 V   Jun 2013   [Refereed]
D. Dolat, S. Mozia, B. Ohtani, A. W. Morawski
Chemical Engineering Journal   225 358-364   Jun 2013
A simple method of preparation of visible-light active rutile-TiO2 photocatalysts is presented. New materials were obtained by modification of a commercial amorphous titanium dioxide via impregnation followed by calcination at 800°C processes. Ser...
Atsuhiro Tanaka, Keiji Hashimoto, Bunsho Ohtani, Hiroshi Kominami
Chemical Communications   49(33) 3419-3421   Apr 2013   [Refereed]
Nearly second-order (1.87th) light-intensity dependence was observed for photocatalytic oxidation of formic acid in aqueous solutions induced by visible-light surface-plasmon resonance absorption of gold nanoparticles loaded on titanium(iv) oxide ...
Motoki Iwase, Keiji Yamada, Tsutomu Kurisaki, Orlando Omar Prieto-Mahaney, Bunsho Ohtani, Hisanobu Wakita
Applied Catalysis B: Environmental   132-133 39-44   Mar 2013   [Refereed]
Doping titanium(IV) oxide(TiO2) with phosphorus (P) having negative charges was attempted in order to obtain P-doped TiO2 with a red shift of the absorption edge and visible-light photocatalytic activity. P-doped TiO2 was synthesized through the h...
Bunsho Ohtani
Photocatalysis and Water Purification: From Fundamentals to Recent Applications   75-102   Mar 2013
Yuta Nishina, Junya Morita, Bunsho Ohtani
RSC Advances   3(7) 2158-2162   Feb 2013   [Refereed]
A method for the direct bromination of hydrocarbons with Br2 using a ubiquitous and inexpensive catalyst is highly desirable. Herein, we report the selective mono-bromination of hydrocarbons in good yield using Li2MnO3 as a catalyst under irradiat...
D. Dolat, D. Moszyński, N. Guskos, N. Guskos, B. Ohtani, A. W. Morawski
Applied Surface Science   266 410-419   Feb 2013
An easy way of preparing highly N-doped rutile photocatalysts (N-TiO 2/R) in tubular furnace in a constant ammonia (NH3) flow at 800-1000 °C temperature range is presented. New materials were compared to TiO2 samples prepared at the same temperatu...
Hadi Nur, Nur Hidayah Mohd Ran, Nursyafreena Attan, Shigeru Ikeda, Bunsho Ohtani
ITB Journal of Science   44 A 152-163   Dec 2012
Zeolite loaded with alkylsilane-covered titanium oxide was found to be more effective than its nonporous silica counterpart as phase-boundary catalyst (PBC) to promote epoxidation of alkenes with aqueous hydrogen peroxide. It was demonstrated that...
Akira Ohnuma, Akira Ohnuma, Akira Ohnuma, Eun Chul Cho, Eun Chul Cho, Bunsho Ohtani
Chemistry Letters   41(10) 1319-1321   Nov 2012   [Refereed]
Herein, we report a strategy to fabricate a three-dimensional amorphous arrangement of gold nanoparticles from eccentric goldpolymer hybrid particles. The arrangement of the gold nanoparticles in the three-dimensional colloidal lattice of the hybr...
Hiroki Yamamoto, Akira Ohnuma, Takahiro Kozawa, Bunsho Ohtani
Journal of Photopolymer Science and Technology   25(4) 449-453   Oct 2012   [Refereed]
Metal and semiconductor nanoparticles attract much interest owing to their specific properties because they are expected as next generation electronic materials for display and LED, catalyst of solar cells, fluorescent marker in medical field, col...
Sheela Chandren, Sheela Chandren, Bunsho Ohtani
Journal of Photochemistry and Photobiology A: Chemistry   246 50-59   Oct 2012   [Refereed]
Hollow core-shell particles of a titania core and a silica shell, the latter of which was highly porous, water-swollen and not directly connected to the former, were synthesized by a multistep process including carbon and silica coatings followed ...
Niko Guskos, Niko Guskos, Aleksander Guskos, Grzegorz Zolnierkiewicz, Janusz Typek, Pawel Berczynski, Diana Dolat, Barbara Grzmil, Bunsho Ohtani, Antoni W. Morawski
Materials Chemistry and Physics   136(2-3) 889-896   Oct 2012   [Refereed]
Samples of TiO 2, calcined at 350 °C, 400 °C, 450 °C and 500 °C, have been prepared without and with water rinsing. The crystallite sizes were determined to be below 32 nm for all types of samples. Temperature dependence of magnetic resonance spec...
Atsuhiro Tanaka, Asako Ogino, Moe Iwaki, Keiji Hashimoto, Akira Ohnuma, Fumiaki Amano, Bunsho Ohtani, Hiroshi Kominami
Langmuir   28(36) 13105-13111   Sep 2012   [Refereed]
Colloidal gold (Au) nanoparticles were prepared and successfully loaded on titanium(IV) oxide (TiO2) without change in the original particle size using a method of colloid photodeposition operated in the presence of a hole scavenger (CPH). The pre...
Shoichi Hara, Masaharu Yoshimizu, Satoshi Tanigawa, Lei Ni, Bunsho Ohtani, Hiroshi Irie, Hiroshi Irie
Journal of Physical Chemistry C   116(33) 17458-17463   Aug 2012   [Refereed]
A visible-light-induced two-step overall water splitting was achieved by combining two types of photocatalysts prepared by introducing foreign elements into the identical mother structure with a controlled electronic band structure. Strontium tita...
Yuta Nishina, Hideki Hashimoto, Noriyasu Kimura, Naoyuki Miyata, Tatsuo Fujii, Bunsho Ohtani, Jun Takada
RSC Advances   2(16) 6420-6423   Aug 2012   [Refereed]
Nano- and micro-architectural manganese oxide produced by microorganisms catalyses the selective monobromination of hydrocarbons in excellent yield under irradiation of fluorescent room light. The knowledge gained from investigating natural materi...
Sheela Chandren, Sheela Chandren, Bunsho Ohtani
Chemistry Letters   41(7) 677-679   Jul 2012   [Refereed]
Hollow coreshell particles of titania core and silica shell were synthesized by multistep process, and the coreshell particles showed improved stereoselectivity in the photocatalytic redox-combined synthesis of L-pipecolinic acid from L-lysine in ...
Ewa Kowalska, Ewa Kowalska, Ewa Kowalska, Sven Rau, Bunsho Ohtani
Journal of Nanotechnology      Jul 2012
Plasmonic titania photocatalysts were prepared by titania modification with gold by photodeposition. It was found that for smaller amount of deposited gold (0.1wt%), anatase presence and large surface area were beneficial for efficient hydrogen ev...
Fumiaki Amano, Fumiaki Amano, Min Tian, Bunsho Ohtani, Aicheng Chen
Journal of Solid State Electrochemistry   16(5) 1965-1973   May 2012   [Refereed]
The control of anisotropic crystal growth is critical for directing the orientation of crystal lattice planes, and it plays a key role towards understanding the effects of different planes on chemical reactions. Here, we report on the photoelectro...
Fumiaki Amano, Fumiaki Amano, Kohei Nogami, Bunsho Ohtani, Bunsho Ohtani
Catalysis Communications   20 12-16   Apr 2012   [Refereed]
Russelite bismuth tungstate (Bi 2WO 6) flake-ball particles prepared by a hydrothermal reaction method have been reported to be visible-light-responsive photocatalysts for mineralization of organic compounds. Here, we report new bismuth-tungsten m...
Photocatalytic redox-combined synthesis of L-pipecolinic acid from L-lysine using titania particles encapsulated in silica shell
Chandren Sheela, Ohtani Bunsho
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   243    Mar 2012   [Refereed]
Osamu Tomita, Ryu Abe, Ryu Abe, Bunsho Ohtani, Bunsho Ohtani
Chemistry Letters   40(12) 1405-1407   Dec 2011   [Refereed]
Tungsten(VI) oxide loaded with nanoparticulate platinum (Pt/WO3) was demonstrated for the first time to exhibit photocatalytic activity for direct synthesis of phenol from benzene using water and molecular oxygen as reactants under ultraviolet or ...

Patents

 
3920149
3681365
特開2004-299011号
特開2005-089213
特開2006-052099