The alkaline photo-sulfite system triggers Fe(IV/V) generation at hematite surfaces

Gen Li,Yaxuan Jin,Yupeng Yan,Mingxia Wang,Wenfeng Tan,Fan Liu,Xionghan Feng,Hui Yin

Chemical Engineering Journal（2020）

引用 23|浏览17

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摘要

•Fe(III) on hematite generates Fe(IV/V) with sulfite at pH > 9 under light illumination.•Sulfite increases Fe(III) electron density and induces its reaction with h+.•CaSO3 strongly suppresses reaction of Fe(IV/V) with SO32−.•The photo-sulfite system can degrade many organic pollutants in alkaline wastewaters.

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关键词

Advanced oxidation process,Photocatalysis,Fe oxide,Methyl phenyl sulfoxide,Sulfite

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