TiO2/graphene porous composite and its photocatalytic degradation of methylene blue

被引：131

作者：

Yang, Yongfang ^{[1
]}

Xu, Lidong ^{[1
]}

Wang, Hefang ^{[1
]}

Wang, Wenjie ^{[1
]}

Zhang, Lixin ^{[1
]}

机构：

[1] Hebei Univ Technol, Sch Chem Engn & Technol, Tianjin 300130, Peoples R China

来源：

MATERIALS & DESIGN | 2016年 / 108卷

基金：

中国国家自然科学基金;

关键词：

Graphene; TiO2; Porous; Methylene blue; Photocatalytic; TIO2; PHOTOCATALYSIS; HIGH-PERFORMANCE; GRAPHENE; REMOVAL; SURFACE;

D O I：

10.1016/j.matdes.2016.06.104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiO2/graphene porous composites with reduced graphene oxide (rGO) as its inner surface were prepared based on graphene microspheres colloidal crystals template. The structure and morphology of TiO2/graphene porous composites were characterized by Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscopy (SEM). With rGO sheets as the interface of the porous TiO2/graphene, the composites exhibited high light absorbing capacity, high adsorption ability for methylene blue (MB) and fast charge transportation and separation ability. TiO2/graphene porous composites showed superior activity in the degradation of MB under visible light. The rate constant of TiO2/graphene porous composite was 0.0208 min(-1), which was almost 6.5 times higher than P25 under the visibl-light-driven radiation. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：632 / 639

页数：8

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