Performance and mechanisms of Cr(VI) removal by nano-MnO2 with different lattices

Mei Li,Shaoping Kuang,Jiahao Dong,Haoqin Ma,Yan Kang

Journal of Molecular Structure（2023）

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摘要

•The MnO2 with different lattices were prepared to remove Cr(VI).•The removal rate of Cr(VI) by α-MnO2 and β-MnO2 could reach 92% and 76%.•The structure of α-MnO2 contained amounts of Mn(II) and oxygen vacancies.•A plausible mechanism of Cr(VI) removal was proposed.

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关键词

Nano-MnO2,Cr(VI) removal,XAFS,DFT calculation

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