Ternary polyaniline-graphene-TiO2 hybrid with enhanced activity for visible-light photo-electrocatalytic water oxidation

被引：66

作者：

Jing, Lin ^{[1
]}

Yang, Zhi-Yu ^{[1
]}

Zhao, Yu-Fei ^{[1
]}

Zhang, Yu-Xia ^{[1
]}

Guo, Xin ^{[1
]}

Yan, Yi-Ming ^{[1
]}

Sun, Ke-Ning ^{[1
]}

机构：

[1] Beijing Inst Technol, Beijing Key Lab Chem Power Source & Green Catalys, Sch Chem Engn & Environm, Beijing 100081, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 04期

基金：

中国国家自然科学基金;

关键词：

PHOTOCATALYTIC OXYGEN EVOLUTION; TIO2; NANOPARTICLES; GRAPHENE OXIDE; ANATASE; SEMICONDUCTOR; COMPOSITES; EFFICIENT; ENERGY; PHOTOOXIDATION; HETEROJUNCTION;

D O I：

10.1039/c3ta13751a

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：

A polyaniline-graphene-TiO2 (PANI-GR-TiO2) hybrid has been successfully synthesized by coating graphene nanosheets (GR) on the surface of TiO2 and the subsequent chemical polymerization of aniline. The synthesized ternary PANI-GR-TiO2 was thoroughly studied by using scanning electron microscopy (SEM), Raman spectroscopy, X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The PANI-GR-TiO2 hybrid displays promising oxygen evolution reaction (OER) activity for photoelectrocatalytic water oxidation. Moreover, the durability of the ternary hybrid was greatly improved due to the coating of PANI and GR on the surface of TiO2. Finally, a reasonable mechanism was proposed to understand the enhanced activity of the PANI-GR-TiO2 hybrid using UV-Vis absorption spectroscopy and photoluminescence (PL) emission spectroscopy. Our results clearly demonstrate that integrating GR and PANI with TiO2 through a simple route results in an efficient ternary photocatalyst with prominent OER performance for visible-light photoelectrocatalytic water oxidation.

引用

页码：1068 / 1075

页数：8

共 47 条

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