Photocatalytic fabrics based on reduced graphene oxide and TiO2 coatings

被引：28
|
作者：
Molina, J. [1 ,2 ]
Fernandes, F. [3 ]
Fernandez, J. [1 ]
Pastor, M. [3 ]
Correia, A. [3 ]
Souto, A. P. [2 ]
Carneiro, J. O. [3 ]
Teixeira, V. [3 ]
Cases, F. [1 ]
机构：
[1] Univ Politecn Valencia, EPS Alcoy, Dept Ingn Text & Papelera, Alcoy 03801, Spain
[2] Univ Minho, Dept Text Engn, P-4800058 Guimaraes, Portugal
[3] Univ Minho, Dept Phys, P-4800058 Guimaraes, Portugal
来源：
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2015年 / 199卷
关键词：
Reduced graphene oxide; Titanium dioxide; Fabrics; Scanning electrochemical microscopy; Photocatalysis; Rhodamine B; ELECTRONIC TEXTILES; COTTON FABRICS; NANOPARTICLES; SHEETS; NANOCOMPOSITE; PLASMA; CARBON; FILMS; ADHESION; HYBRID;
D O I：
10.1016/j.mseb.2015.04.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The purpose of this work is to obtain photocatalytic fabrics based on reduced graphene oxide (RGO) and TiO2 coatings on polyester fabrics. The influence of the applied number of RGO coatings on properties such as light absorption, conductivity, electroactivity and photocatalytic properties of the fabrics was established. An improvement of these properties with the number of RGO coatings applied was obtained. FESEM, EDX, XPS and FTIR-ATR showed the incorporation of the TiO2 nanoparticles on the fabrics. FTIR-ATR showed the formation of a bidentate carboxylic ligand with titanium atoms. The photocatalytic properties of the fabrics were tested with Rhodamine B dye solutions. Photocatalytic efficiency increased with the number of RGO coatings, due to the increased light absorption, and better electrical properties. The charge transfer resistance (R-ct) and its time constant (tau) decreased, indicating a better electron transfer which helps to increase the lifetime of the pair electron/hole. (C) 2015 Elsevier B.V. All rights reserved.
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收藏
页码：62 / 76
页数：15
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