Photocatalytic oxidation of arylalcohols to aromatic aldehydes promoted by hydroxyl radicals over a CoP/CdS photocatalyst in water with hydrogen evolution

Xu Yong; Zeng Ling-Zhen; Fu Zi-ChengLi CongYang ZhiChen YongFu Wen-Fu

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Photocatalytic oxidation of arylalcohols to aromatic aldehydes promoted by hydroxyl radicals over a CoP/CdS photocatalyst in water with hydrogen evolution

机译：光催化氧化arylalcohols芳香醛被羟基自由基/警察/ cd光催化剂在水中氢进化

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摘要

Cobalt phosphide (CoP) combined with CdS was employed as a photocatalyst to oxidize arylalcohols into aromatic aldehydes or ketones in water. This was accompanied by the reduction of water, and the quantitative yield of hydrogen evolution was much higher than the chemical equivalent of hydrogen gas. Electron spin resonance spectroscopy and quenching experiments demonstrated that hydroxyl free radicals, originating from water splitting, promoted the oxidation of arylalcohols, while the holes in the valence band of the photocatalyst were reduced by the -OH and organic substrates. The overall reaction generates high-value-added organics. This photocatalytic reaction is atom-economical, in accordance with the concept of sustainable development.

机译：磷化钴(CoP)结合cd作为光催化剂氧化arylalcohols芳香醛或酮在水里。水,量化产生的氢气远高于化学进化相当于氢气。共振光谱和淬火实验表明,羟基自由基,来自水分裂,促进了氧化arylalcohols,洞中价带的光催化剂被减少-哦,有机基质。反应生成高附加值的有机物。光催化反应是atom-economical,按照可持续发展的概念发展。

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来源
《Catalysis science & technology》 |2018年第10期|2540-2545|共6页
作者
Xu Yong; Zeng Ling-Zhen; Fu Zi-ChengLi CongYang ZhiChen YongFu Wen-Fu;
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作者单位

Yunnan Normal Univ, Coll Chem & Chem Engn, Kunming 650092, Yunnan, Peoples R China;

Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China;

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正文语种英语
中图分类汉语教学;
关键词
aldehydes; Oxidation; WATER REDUCTIONHydroxyl RadicalElectron spin resonance spectroscopyKetonesHydrogen evolutionFree radicalsValence band;

机译：REDUCTIONHydroxyl醛;氧化;水RadicalElectron自旋共振spectroscopyKetonesHydrogen evolutionFree;

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Photocatalytic oxidation of arylalcohols to aromatic aldehydes promoted by hydroxyl radicals over a CoP/CdS photocatalyst in water with hydrogen evolution

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