Photocatalytic CO2 reduction activity of Z-scheme CdS/CdWO4 catalysts constructed by surface charge directed selective deposition of CdS
Photocatalytic CO2 reduction activity of Z-scheme CdS/CdWO4 catalysts constructed by surface charge directed selective deposition of CdS
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表面电荷定向选择性沉积 CdS 构建的 Z 型 CdS/CdWO4 催化剂的光催化 CO2 还原活性
DOI：
10.1016/j.apsusc.2019.03.333
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发表时间：
2019-07
影响因子：
6.7
通讯作者：
Yao Hong Chang
中科院分区：
文献类型：
--
作者：
Li Yan Yang;Wei Zhi He;Fan Jin Bin;Li Zhong Jun;Yao Hong Chang
Rational construction ofZ-scheme photocatalysts and deep exploration of Z-scheme transfer mechanism are highly desirable for improving the activity of CO2reduction photocatalysts but remains a significant challenge. Herein, we synthesized a series of heterostructured CdS/CdWO4materials by selectively depositing CdS nanoparticles on the edges of CdWO4nanoplates. Selective deposition mechanism of CdS and the formation of the composites were studied in detail. The photocatalytic CO2reduction activities of the synthesized materials were investigated and the results show that CdS/CdWO4materials exhibit higher photocatalytic activity than pure CdS and CdWO4. We suggest that the enhanced photoreduction CO2activity is attributed toZ-scheme charge transfer mechanism based on the analyses of the products of CO2reduction and the band structure of CdS and CdWO4. Kelvin probe force microscope on CdWO4nanoplates shows that the photogenerated electrons, driven by electric field forces, would migrate to the edge of CdWO4. The charge transfer direction, coupling with the selective deposition of CdS nanoparticles, facilitates CdS/CdWO4composites followingZ-scheme transfer.In-situPt photodeposition tests provide strong experimental support to the charge transfer mechanism. The results gained herein are expected to provide some useful insights into the structure-oriented rational design ofZ-scheme photocatalysts for CO2reduction.
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影响因子：
6.7
作者：
Na Tian;Hongwei Huang;Yihe Zhang
通讯作者：
Na Tian;Hongwei Huang;Yihe Zhang
DOI：
10.1002/advs.201600216
发表时间：
2017-01
期刊：
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
影响因子：
--
作者：
Bai S;Wang L;Li Z;Xiong Y
通讯作者：
Xiong Y
影响因子：
32.5
作者：
Kan Zhang;Luyang Wang;Jung Kyu Kim;M. Ma;G. Veerappan;Chang-Lyoul Lee;K. Kong;Hyoyoung Lee;
通讯作者：
Kan Zhang;Luyang Wang;Jung Kyu Kim;M. Ma;G. Veerappan;Chang-Lyoul Lee;K. Kong;Hyoyoung Lee;
影响因子：
56.9
作者：
Davis, Steven J.;Caldeira, Ken;Matthews, H. Damon
通讯作者：
Matthews, H. Damon
影响因子：
6.7
作者：
Weina Xu;Chunhua Zheng;H. Hua;Qi Yang;Lin Chen;Y. Xi;Chenguo Hu
通讯作者：
Weina Xu;Chunhua Zheng;H. Hua;Qi Yang;Lin Chen;Y. Xi;Chenguo Hu