Efficient removal of Cr(VI) from aqueous solutions by polypyrrole/natural pyrite composites

Fen Zhang,Luyao Xi,Meiqi Zhao,Yaguang Du,Liying Ma,Shaohua Chen,Hengpeng Ye,Dongyun Du,Tian C. Zhang

Journal of Molecular Liquids（2022）

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摘要

•PPy/NP were synthesized via an in situ chemical polymerization technique.•The maximum adsorption capacity of Cr(VI) on PPy/NP was 261.78–395.26 mg/g.•PPy/NP showed an excellent performance for adsorption and reduction of Cr(VI).•Cr(VI) removal was attributed to ion exchange, adsorption and reduction.•PPy/NP could be a promising material for efficient removal of Cr(VI).

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关键词

Hexavalent chromium,Polypyrrole,Natural pyrite,Adsorption and reduction,Mechanism

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