Photocatalytic oxidation of arylalcohols to aromatic aldehydes promoted by hydroxyl radicals over a CoP/CdS photocatalyst in water with hydrogen evolution†,Catalysis Science & Technology

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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†
Catalysis Science & Technology ( IF 4.4 ) Pub Date : 2018-03-22 00:00:00 , DOI: 10.1039/c8cy00138c
Yong Xu _{1,

2,

3,

4,

5} , Ling-Zhen Zeng _{5,

6,

7,

8} , Zi-Cheng Fu _{1,

2,

3,

4,

5} , Cong Li _{5,

6,

7,

8} , Zhi Yang _{5,

6,

7,

8} , Yong Chen _{1,

2,

3,

4,

5} , Wen-Fu Fu _{1,

2,

3,

4,

5}

Affiliation

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.

中文翻译：

水中有CoP / CdS的光催化剂将芳基光催化氧化为羟基自由基所促进的芳族醛，并产生氢†

磷化钴（CoP）与CdS结合用作光催化剂，将芳基醇在水中氧化为芳族醛或酮。这伴随着水的减少，并且放出氢气的定量产率远高于氢气的化学当量。电子自旋共振谱和淬火实验表明，羟基自由基，从水分解始发，促进arylalcohols的氧化，而在光催化剂的价带中的孔是由降低的^- OH和有机衬底。整个反应生成高附加值的有机物。根据可持续发展的概念，这种光催化反应是原子经济的。

更新日期：2018-03-22

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