A novel incorporating style of polyaniline/TiO2 composites as effective visible photocatalysts

被引：80

作者：

Gu, Liuan ^{[1
]}

Wang, Jingyu ^{[1
]}

Qi, Rong ^{[1
]}

Wang, Xiaoyu ^{[1
]}

Xu, Ping ^{[1
]}

Han, Xijiang ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2012年 / 357卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Polyaniline/TiO2; Incorporating style; Hydrothermal synthesis; Visible photoactivity; LOW-TEMPERATURE SYNTHESIS; TIO2; NANOPARTICLES; PHOTODEGRADATION; IRRADIATION; TITANIA; LIGHT; PERFORMANCES; DEGRADATION; ADSORPTION;

D O I：

10.1016/j.molcata.2012.01.012

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Herein we obtain a novel incorporating style of polyaniline (PANI)/TiO2 composites (Ns) via a designed two-step route. In comparison with conventional incorporating style (Cs), one-dimensional (1D) PANI is introduced in the step of TiO2 crystal growth instead of after crystallization. During the hydrothermal process, 1D PANI can act as an effective template to stabilize TiO2 particles at nanoscale through interfacial chemical bonds. In this way, the transition of some newly formed anatase crystals to rutile phase is partly suppressed. Also, the as-prepared composites show obvious light response in a wide range of 230-900 nm due to the sensitizing effect of PANI. Ns exhibit the improved visible photocatalytic property with scarce decrease of UV photoactivity. Overall, this work would provide new insights into the fabrication of conducting polymer/semiconductor composites with desired nanostructure as high performance photocatalysts and would facilitate their applications in environmental purification and solar energy conversion. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：19 / 25

页数：7

共 45 条

[1]

ADSORPTION AND H-2 NMR OF AMMONIA, PYRIDINE, DIMETHYLAMINE, AND BENZENE ON RUTILE AND ANATASE [J].