One-Dimensional CdS/TiO2 Nanofiber Composites as Efficient Visible-Light-Driven Photocatalysts for Selective Organic Transformation: Synthesis, Characterization, and Performance

被引：123
|
作者：
Qin, Na [1 ]
Liu, Yuhao [1 ]
Wu, Weiming [1 ]
Shen, Lijuan [1 ]
Chen, Xun [1 ]
Li, Zhaohui [1 ]
Wu, Ling [1 ]
机构：
[1] Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Photo Catalysis Energy & Environm, Fuzhou 350002, Peoples R China
来源：
LANGMUIR | 2015年 / 31卷 / 03期
基金：
中国国家自然科学基金;
关键词：
ELECTROSPUN TIO2 NANOFIBERS; HIERARCHICAL NANOSTRUCTURES; OXIDATION; CDS; NANOCOMPOSITES; DEGRADATION; ULTRATHIN; NANOWIRES; NANOTUBE; ALCOHOLS;
D O I：
10.1021/la503731y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
CdS/TiO2 heterojunction nanofibers have been successfully synthesized through the photodeposition of CdS on 1D TiO2 nanofibers that were prepared via a facile electrospinning method. The as-synthesized samples showed high photocatalytic activities upon selectively oxidizing a series of alcohols into corresponding aldehydes under visible light irradiation. TEM observations revealed that CdS was closely grown on the TiO2 nanofibers. Moreover, it was found that the CdS/TiO2 nanofibers that were photodeposited for 4 h exhibited the highest catalytic activity, with a conversion of 22% and a selectivity of 99%, which were much higher than those of commercial CdS. In addition, we also discuss the photoabsorption performance and the reaction mechanism of the photocatalytic oxidation of alcohols.
引用
收藏
页码：1203 / 1209
页数：7
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