Construction of hybrid Z-scheme Pt/CdS-TNTAs with enhanced visible-light photocatalytic performance

被引：83
|
作者：
Zhu, Yuxiang [1 ,2 ]
Chen, Zhi [1 ]
Gao, Tong [1 ]
Huang, Qiaoli [1 ]
Niu, Feng [1 ]
Qin, Laishun [1 ]
Tang, Peng [2 ]
Huang, Yuexiang [1 ]
Sha, Zuoliang [2 ]
Wang, Yanfei [2 ]
机构：
[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
[2] Tianjin Univ Sci & Technol, Coll Marine Sci & Technol, Tianjin Key Lab Marine Resources & Chem, Tianjin, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2015年 / 163卷
基金：
中国国家自然科学基金;
关键词：
Z-scheme; Pt/CdS; TNTAs; Visible-light photocatalysis; TIO2 NANOTUBE ARRAYS; PHOTOELECTROCHEMICAL PERFORMANCE; HYDROGEN-PRODUCTION; NANOPARTICLES; ELECTRODES; WATER; NANOSTRUCTURES; NANOCOMPOSITES; COCATALYSTS; FABRICATION;
D O I：
10.1016/j.apcatb.2014.07.041
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hybrid Z-scheme Pt/CdS-TNTAs nanostructures have been successfully fabricated through a simple route. Pt and CdS quantum dots (QDs) are homogeneously dispersed along the channels of TiO2 nanotube arrays (TNTAs) and contact with TiO2 support in a triangle form. Pt/CdS-TNTAs hybrid structure extends absorption into the visible-light region and presents enhanced activity of photocatalytic degradation of Rhodamine B under visible light, which is ascribed to the effective vectorial electron transfer of CdS -> TiO2 -> Pt. It is proposed that superoxide and hydroxyl radicals should be the main active species in the photocatalytic reaction. Furthermore, the prepared catalyst has another advantage of easy recycling compared with the powder one. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：16 / 22
页数：7
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