光催化
苯甲醛
苯甲醇
化学
酒精氧化
溶剂
三元运算
光化学
可见光谱
酒
锌
乙醇
有机化学
核化学
材料科学
催化作用
程序设计语言
光电子学
计算机科学
作者
Li Su,Xiangju Ye,Sugang Meng,Xianliang Fu,Shifu Chen
标识
DOI:10.1016/j.apsusc.2016.04.084
摘要
A series of ternary chalcogenides, zinc indium sulphide (ZnIn2S4), were synthesized by a simple solvothermal method with different solvents. The structure, textural, and optical properties of the resulting materials were thoroughly characterized by several techniques. The as-prepared ZnIn2S4 samples could all be employed as excellent photocatalysts to activate O2 for selective oxidation of aromatic alcohols to aromatic aldehydes under visible light illumination. The results showed that ZnIn2S4 prepared in ethanol solvent (ZIS-EtOH) exhibited the highest photocatalytic activity among the screened samples. The differences of photocatalytic performance for ZnIn2S4 samples prepared in different media were mainly attributed to the different levels of exposed {0001} special facets caused by the exposure extent of the basic crystal plane. In addition, O2− and positive holes were proved to be the main active species during the photocatalytic process. Combined with the previous reports, a possible photocatalytic mechanism for the selective oxidation of benzyl alcohol to benzaldehyde over ZnIn2S4 sample was proposed.
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