Photocatalytic activity of bauxite-tailings supported nano-TiO2

被引：0
作者：
Qing-hua Lu
Yue-hua Hu
Meng Wang
机构：
[1] Central South University,School of Resources Processing and Bioengineering
来源：
Journal of Central South University of Technology | 2010年 / 17卷
关键词：
TiO; bauxite-tailings; phenol; photocatalytic activity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
TiO2/bauxite-tailings (TiO2/BTs) composites were prepared via a chemical liquid deposition method and characterized by X-ray diffractometry (XRD), scanning electronic microscopy (SEM) and N2 adsorption analysis. The photocatalytic performance of TiO2/BTs composites was evaluated with UV-Vis spectrophotometer following the changes of phenol concentration under different illumination time. Effects of the calcination temperature, the pH and the cycles on the photocatalytic activity of TiO2/BTs composites were investigated. The composites calcined at 500 and 600 °C exhibit the best photocatalytic performance, and the phenol degradation ratios reacting for 40 and 160 min reach 35% and 78% respectively under the same conditions, higher than those of 29% and 76% of the Degussa P25(TiO2). The ability of TiO2/BTs500 (BTs500 represents bauxite-tailings calcined at 500 °C) composites to degrade phenol increases with decreasing pH.
引用
收藏
页码：755 / 759
页数：4
相关论文
共 50 条
[31]   The effect of ultrasound and precursor on the formation of nano-TiO2 [J].
Dewes, Ruben M. M. ;
Zhu, Yanshen ;
Dami, Valentina ;
Baldi, Giovanni ;
Koos, Erin ;
Van Gerven, Tom .
JOURNAL OF NANOPARTICLE RESEARCH, 2023, 25 (06)
[32]   Developments in photocatalytic antibacterial activity of nano TiO2: A review [J].
Hemraj Mahipati Yadav ;
Jung-Sik Kim ;
Shivaji Hariba Pawar .
Korean Journal of Chemical Engineering, 2016, 33 :1989-1998
[33]   A new perspective for effect of S and Cu on the photocatalytic activity of S, Cu-codoped nano-TiO2 under visible light irradiation [J].
Wentao Yi ;
Chunyan Yan ;
Peng Yan ;
Faqiang Li .
Journal of Sol-Gel Science and Technology, 2014, 69 :386-396
[34]   A new perspective for effect of S and Cu on the photocatalytic activity of S, Cu-codoped nano-TiO2 under visible light irradiation [J].
Yi, Wentao ;
Yan, Chunyan ;
Yan, Peng ;
Li, Faqiang .
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2014, 69 (02) :386-396
[35]   Photocatalytic Degradation of Rhodamine B Dye with High Purity Anatase Nano-TiO2 Synthesized by a Hydrothermal Method [J].
Shi Xiaoliang ;
Yang Xingyong ;
Wang Shuwei ;
Wang Sheng ;
Zhang Qiaoxin ;
Wang Yufu .
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2011, 26 (04) :600-605
[36]   Photocatalytic Degradation of Rhodamine B Dye with High Purity Anatase Nano-TiO2 Synthesized by a Hydrothermal Method [J].
史晓亮 .
Journal of Wuhan University of Technology(Materials Science), 2011, (04) :600-605
[37]   Enhanced mechanical and photocatalytic performance of cement mortar reinforced by nano-TiO2 hydrosol-coated sand [J].
Jiang, Jihong ;
Dong, Xiaobin ;
Wang, Han ;
Wang, Fengjuan ;
Li, Yali ;
Lu, Zeyu .
CEMENT & CONCRETE COMPOSITES, 2023, 137
[38]   Photodegradation of Oily Waste water Using Nano-TiO2 [J].
Zhang, Zongwei ;
Zhang, Chuang .
ADVANCED TEXTILE MATERIALS, PTS 1-3, 2011, 332-334 :2153-2156
[39]   Effects of Material Morphology on the Phototoxicity of Nano-TiO2 to Bacteria [J].
Tong, Tiezheng ;
Shereef, Anas ;
Wu, Jinsong ;
Chu Thi Thanh Binh ;
Kelly, John J. ;
Gaillard, Jean-Francois ;
Gray, Kimberly A. .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (21) :12486-12495
[40]   Preparation of Nano-TiO2 Powder by Polyacrylamide Gel Method [J].
Fan, Xiaowei ;
Liang, Xiaoping ;
Guo, Guanqun ;
Wang, Rongtao ;
Li, Jianxin .
SECOND INTERNATIONAL CONFERENCE ON SMART MATERIALS AND NANOTECHNOLOGY IN ENGINEERING, 2009, 7493
12345