Three-dimensional Fe2O3-TiO2-graphene aerogel nanocomposites with enhanced adsorption and visible light-driven photocatalytic performance in the removal of RhB dyes

被引：69
|
作者：
Zhang, Jing-Jie [1 ]
Qi, Pan [1 ]
Li, Jie [2 ]
Zheng, Xiu-Cheng [1 ,3 ]
Liu, Pu [1 ]
Guan, Xin-Xin [1 ,3 ]
Zheng, Guang-Ping [4 ]
机构：
[1] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China
[2] Do Fluoride Chem Co Ltd, Jiaozuo 454000, Peoples R China
[3] Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China
[4] Hong Kong Polytech Univ, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2018年 / 61卷
基金：
中国国家自然科学基金;
关键词：
Fe2O3-TiO2-GA; 3D porous architecture; Adsorbents; Visible light-driven photocatalysts; Rhodamine B dyes; TEXTILE EFFLUENT DEGRADATION; ACTIVATED CARBON; METHYLENE-BLUE; FE2O3/TIO2; NANOPARTICLES; TIO2; PHOTOCATALYST; AQUEOUS-SOLUTIONS; RATIONAL DESIGN; CORE-SHELL; OXIDE; COMPOSITE;
D O I：
10.1016/j.jiec.2017.12.040
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of Fe2O3 and TiO2 co-doped graphene aerogel (Fe2O3-TiO2-CA) nanocomposites with a unique 3D architecture are assembled by a one-pot hydrothermal method combined with freeze-drying. The one with 30 wt% Fe2O3 exhibits the highest adsorptivity (95.0%) and the another with 25 wt% Fe2O3 displays the highest total efficiency (97.7%) including adsorption and visible light-driven photocatalytic degradation for rhodamine B dyes (20.0 mg L-1, 25 mL) within 1 h over 5.0 mg of the nanocomposites. The materials also display satisfactory cyclic stability and the removal efficiency can be 81.8% even after four runs. Additionally, a related photocatalytic mechanism is proposed. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：407 / 415
页数：9
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