Simple synthesis method of Bi2S3/CdS quantum dots cosensitized TiO2 nanotubes array with enhanced photoelectrochemical and photocatalytic activity

被引：71

作者：

Lv, Pin ^{[1
]}

Fu, Wuyou ^{[1
]}

Yang, Haibin ^{[1
]}

Sun, Hairui ^{[1
]}

Chen, Yanli ^{[1
]}

Ma, Jinwen ^{[1
]}

Zhou, Xiaoming ^{[1
]}

Tian, Lecheng ^{[1
]}

Zhang, Wenjiao ^{[1
]}

Li, Meijing ^{[1
]}

Yao, Huizhen ^{[1
]}

Wu, Di ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China

来源：

CRYSTENGCOMM | 2013年 / 15卷 / 37期

基金：

中国国家自然科学基金;

关键词：

IONIC LAYER ADSORPTION; NANORODS; PHOTOSENSITIZATION; NANOPARTICLES; PERFORMANCE; GROWTH;

D O I：

10.1039/c3ce40863a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A TiO2 nanotubes array film with nanowires directly formed on top (denoted as TiO2 NTWs) was prepared by an anodization method (potentiostatic anodization growth). Bi2S3 QDs were sensitized on the CdS/TiO2 NTWs array by a simple successive ionic layer adsorption and reaction (S-SILAR). A short-circuit photocurrent density of 2.16 mA cm (2) was obtained under an illumination of AM 1.5 G. The data of the photoelectrochemical performance test show that Bi2S3/CdS co-modification can boost the photocurrent density of the bare TiO2 NTWs by up to 308%. The photocatalytic activity was tested by treating rhodamine B (RhB) and methyl orange (MO) solutions, which were degraded completely after 240 min and 210 min, respectively. The present study shows the Bi2S3/CdS/TiO2 NTWs array can be applied in photocatalytic devices, and the greatest advantages are low-cost, easy reuse and recyclability.

引用

页码：7548 / 7555

页数：8

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