2021年10月
Grafting chelating groups on 2D carbon for selective heavy metal adsorption
NANOSCALE ADVANCES
- ,
- ,
- 巻
- 3
- 号
- 20
- 開始ページ
- 5823
- 終了ページ
- 5829
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1039/d1na00435b
- 出版者・発行元
- ROYAL SOC CHEMISTRY
Iminodiacetic acid (IDA) is a tridentate ligand, which can capture metal ions by forming two fused five-membered chelate rings. In this study, we fixed IDA moieties onto a two-dimensional nanocarbon, graphene oxide (GO), to obtain materials with high and selective adsorption of metal ions. The synthesis conditions for the GO-IDA composites were optimized, then their structures were characterized by infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and CHN elemental analysis. In addition, the heavy-metal removal efficiency and selectivity of the GO-IDA composites with different length alkyl linkers between the GO and IDA were investigated. An aqueous solution containing 10 metal ions (Al, As, B, Cd, Cr, Cu, Mn, Pb, Se, and Zn) was used as a model for contaminated water at pH 7, and the interactions of the ions with GO-IDA were in the order of Cu > Pb > As > B > Zn > Al approximate to Se. The interaction between Cu and GO-IDA was confirmed by XPS and extended X-ray absorption fine structure (EXAFS), which showed that Cu was coordinated to IDA.
- リンク情報
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- DOI
- https://doi.org/10.1039/d1na00435b
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/36132676
- PubMed Central
- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419290
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000686735300001&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1039/d1na00435b
- ISSN : 2516-0230
- PubMed ID : 36132676
- PubMed Central 記事ID : PMC9419290
- Web of Science ID : WOS:000686735300001