Synthesis and visible catalytic applications of graphene-titania dioxide nanotube composites

被引：6

作者：

Liu, Wei ^{[1
]}

Wang, Xinzhi ^{[1
]}

Song, Jianguo ^{[1
]}

Zhang, Qian ^{[2
]}

Chang, Chang-Tang ^{[3
]}

机构：

[1] Yantai Univ, Coll Environm & Mat Engn, Yantai 264005, Peoples R China

[2] Natl Taiwan Univ, Grad Inst Environm Engn, Taipei 10764, Taiwan

[3] Natl Ilan Univ, Dept Environm Engn, Ilan 260, Taiwan

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2014年 / 27卷

关键词：

Composite materials; Nanostructures; Graphene; Visible light catalysis; ENHANCED PHOTOCATALYTIC ACTIVITY;

D O I：

10.1016/j.mssp.2014.06.051

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel photocatalyst of graphene-titania dioxide nanotube (GN-TNT) composites was prepared using a simple hydrothermal reaction with ascorbic acid as a reducing agent. High resolution transmission electron microscope (HR-TEM), fourier transform infrared spectrometer (FT-IR), thermo gravimetric analyzer (TGA) and N-2 adsorption/desorption analyzer (BET) methods were used to assess the morphologies and structures of as synthesized materials. HR-TEM analysis further confirmed the presences of graphene and titanium (TiO2) nanotubes in the nanocomposite photocatalyst. The results exhibited that photocatalytic performance of a GN-TNT photocatalyst significantly improved under visible light.. In addition, the exisLence of a competitive effect. between As3+ and reactive black 5 (RBK5) molecules in the mixed solution was found. The photocatalytic process is also discussed in this paper. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：273 / 279

页数：7

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