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
收藏
页码：273 / 279
页数：7
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