A three-dimensional graphene-TiO2 nanotube nanocomposite with exceptional photocatalytic activity for dye degradation

被引：52

作者：

Zhao, Fenghuan ^{[1
]}

Dong, Bohua ^{[1
]}

Gao, Rongjie ^{[1
]}

Su, Ge ^{[1
]}

Liu, Wei ^{[1
]}

Shi, Liang ^{[2
]}

Xia, Chenghui ^{[3
]}

Cao, Lixin ^{[1
]}

机构：

[1] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266000, Peoples R China

[2] Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266000, Peoples R China

[3] Univ Utrecht, Debye Inst, NL-3584 CC Utrecht, Netherlands

来源：

APPLIED SURFACE SCIENCE | 2015年 / 351卷

基金：

中国国家自然科学基金;

关键词：

Reduced graphene oxide; Nanotube; Graphene/TiO2; Photocatalytic; GRAPHITE OXIDE; DOPED TIO2; HYDROGEN-PRODUCTION; TITANIUM-DIOXIDE; COMPOSITE; SEMICONDUCTOR; NANOPARTICLES; REDUCTION; SHEETS;

D O I：

10.1016/j.apsusc.2015.05.121

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Three dimensional nanocompo site s made up of TiO2 nanotubes (TNTs) and conducting reduced graphene oxide nanosheets (RGO) were fabricated successfully via hydrothermal method. These graphene/TNTs nanocomposites (GTNCs) with unique nanostructure not only provided sufficient active sites but supplied electron-transport path, Which gave big rise to their photocatalytic activity. In addition, the graphene amount and calcination temperature were intensively optimized. A series of products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and UV-vis absorption spectroscopy. The photocatalytic activity of as-prepared GTNCs was investigated through the degradation of methyl orange (MO) under UV-light irradiation. The results show that these GTNCs are well-structured with outstanding photocatalytic activity which is much better than that of traditional TiO2 nanotubes. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：303 / 308

页数：6

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