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
[11]   Effect of Doped Sulfur on the Photocatalytic Property of Nano-TiO2 [J].
Ma, Tao ;
He, Yan .
PROCEEDINGS OF THE 7TH NATIONAL CONFERENCE ON CHINESE FUNCTIONAL MATERIALS AND APPLICATIONS (2010), VOLS 1-3, 2010, :913-915
[12]   Inhibition of bacteria by photocatalytic nano-TiO2 particles in the absence of light [J].
A. Erdem ;
D. Metzler ;
D. Cha ;
C. P. Huang .
International Journal of Environmental Science and Technology, 2015, 12 :2987-2996
[13]   Modification of Rutile Nano-TiO2 Powders with Visible Light Photocatalytic Activity in Hydrogen or Nitrogen Atmosphere [J].
Gao, Jiacheng ;
Tan, Xiaowei ;
Miao, Yigao ;
Xin, Renlong .
INTEGRATED FERROELECTRICS, 2011, 129 :169-175
[14]   Preparation, Microstructure and Photocatalytic Performance of the Anatase Nano-TiO2 Thin Film [J].
Qiu, Man-De ;
Bai, Guo-Yi ;
Wang, Xiao-Yan ;
Zhai, Yong-Qing ;
Yao, Zi-Hua .
ASIAN JOURNAL OF CHEMISTRY, 2013, 25 (02) :1133-1136
[15]   A novel zein/poly (propylene carbonate)/nano-TiO2 composite films with enhanced photocatalytic and antibacterial activity [J].
Li, Shuhong ;
Zhao, Shuang ;
Qiang, Siqi ;
Chen, Guiyun ;
Chen, Yue ;
Chen, Ye .
PROCESS BIOCHEMISTRY, 2018, 70 :198-205
[16]   Spouted bed reactor for VOC removal by modified nano-TiO2 photocatalytic particles [J].
Khalilzadeh, Alireza ;
Fatemi, Shohreh .
CHEMICAL ENGINEERING RESEARCH & DESIGN, 2016, 115 :241-250
[17]   Effect of Er3+ dopant on microstructure and photocatalytic property of nano-TiO2 [J].
Fan Cai-mei ;
Tang Qi ;
Wang Yun-fang ;
Hao Xiao-gang ;
Liang Zhen-hai ;
Sun Yan-ping .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2007, 17 :S716-S720
[18]   Preparation and Photocatalytic Performance of Nano-TiO2/γ-Al2O3 Composites [J].
Qu, Hua .
ASIAN JOURNAL OF CHEMISTRY, 2013, 25 (14) :7665-7668
[19]   Effective dispersion of nano-TiO2 powder for enhancement of photocatalytic properties in cement mixes [J].
Yousefi, Azam ;
Allahverdi, Ali ;
Hejazi, Parisa .
CONSTRUCTION AND BUILDING MATERIALS, 2013, 41 :224-230
[20]   Facile synthesis of nano-TiO2/stellerite composite with efficient photocatalytic degradation of phenol [J].
Hu, Xiaolong ;
Sun, Zhiming ;
Song, Junying ;
Zhang, Guangxin ;
Zheng, Shuilin .
ADVANCED POWDER TECHNOLOGY, 2018, 29 (07) :1644-1654
12345