Self-Assembly of Large Scale CdS/TiO2 Film Photocatalyst

被引:3
|
作者
Li, Chunxiang [1 ]
Jiang, Zhaohua [1 ]
Yao, Zhongping [1 ]
机构
[1] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China
来源
关键词
CdS/TiO2; Photoreduction; Raman; Luminescence; Crystal size; HYDROGEN-PRODUCTION; CHARGE-TRANSFER; CDS; NANOPARTICLES; NANOCRYSTALS; CDS-TIO2; WATER;
D O I
10.4028/www.scientific.net/AMR.512-515.1692
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
CdS/TiO2 composite films with different Cd:Ti atomic ratio were prepared by a new straightforward particulate layer-by-layer method. Titanium dihydroxide and thiourea were used as precursors. Raman and X-ray photoelectron spectroscopy analysis for the composite films revealed that the TiO2 formed from titanium precursor retarded the crystal growth of CdS. Luminescence and UV-vis absorption spectra investigation showed that emission and absorption band of CdS/TiO2 blue shifted as crystal size of CdS decreased. Furthermore, hydrogen formation curves revealed that hydroxyl of CdS/TiO2 films plays an important role in water splitting reaction under both UV and visible light irradiations.
引用
收藏
页码:1692 / 1698
页数:7
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