Photocatalyic activity of double pore structure TiO2/SiO2 monoliths

被引:43
作者
Chang, Wei [1 ]
Yan, Leilei [1 ]
Liu, Bin [1 ]
Sun, Runjun [2 ]
机构
[1] Xian Polytech Univ, Sch Environm & Chem Engn, Xian 710048, Peoples R China
[2] Xian Polytech Univ, Sch Text & Mat, Xian 710048, Peoples R China
关键词
TiO2/SiO2; Photocatalytic activity; Monolith; TIO2-SIO2; NANOCOMPOSITES; TIO2; PHOTOCATALYST; DEGRADATION; ADSORPTION; DYES; PHOTODEGRADATION; NANOPARTICLES; FABRICATION; NITROGEN; FE;
D O I
10.1016/j.ceramint.2017.01.061
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The TiO2/SiO2 monoliths with macro- and mesopore structure have been synthsized by sol-gel method. The double pore structure was developed by adding polyethylene glycol and urea in the precurser solution. The morphology, crystallinity, surface area and porosity of the TiO2/SiO2 monoliths were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), N-2 adsorption/desorption and mercury intrusion techniques. The photocatalytic activity and applicablity of the monoliths were investigated by degradation of methylene blue and purificaiton of actual dyeing and finishing wastewater. The result showed the prepared TiO2/SiO2 monolith to have enhanced photocatalytic activity, reusability and easy recovery, so it may be considered a promising material for practical application in wastewater treatment.
引用
收藏
页码:5881 / 5886
页数:6
相关论文
共 36 条
[1]   Adsorption of Heavy Metal Ions from Aqueous Solutions by Zeolite Based on Oil Shale Ash: Kinetic and Equilibrium Studies [J].
Bao Wei-wei ;
Zou Hai-feng ;
Gan Shu-cai ;
Xu Xue-chun ;
Ji Gui-juan ;
Zheng Ke-yan .
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES, 2013, 29 (01) :126-131
[2]   Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].
Chen, Xiaobo ;
Mao, Samuel S. .
CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959
[3]   Photocatalytic Degradation of Dyes by ZnIn2S4 Microspheres under Visible Light Irradiation [J].
Chen, Zhixin ;
Li, Danzhen ;
Zhang, Wenjuan ;
Shao, Yu ;
Chen, Tianwen ;
Sun, Meng ;
Fu, Xianzhi .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (11) :4433-4440
[4]   SiO2/TiO2 composite aerogels: Preparation via ambient pressure drying and photocatalytic performance [J].
Cheng, Shengjun ;
Liu, Xinling ;
Yun, Shan ;
Luo, Hongjie ;
Gao, Yanfeng .
CERAMICS INTERNATIONAL, 2014, 40 (09) :13781-13786
[5]   MWCNT-TiO2-SiO2 nanocomposites possessing the photocatalytic activity in UVA and UVC [J].
Czech, Bozena ;
Buda, Waldemar ;
Pasieczna-Patkowska, Sylwia ;
Oleszczuk, Patryk .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 162 :564-572
[6]   Solar Light-Responsive Pt/CdS/TiO2 Photocatalysts for Hydrogen Production and Simultaneous Degradation of Inorganic or Organic Sacrificial Agents in Wastewater [J].
Daskalaki, Vasileia M. ;
Antoniadou, Maria ;
Puma, Gianluca Li ;
Kondarides, Dimitris I. ;
Lianos, Panagiotis .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2010, 44 (19) :7200-7205
[7]   Band gap tuning and nonlinear optical characterization of TiO2-SiO2 nanocomposites with respect to composition and phase [J].
Divya, S. ;
Sebastian, Indu ;
Nampoori, V. P. N. ;
Radhakrishnan, P. ;
Mujeeb, A. .
OPTICAL MATERIALS, 2014, 37 :433-438
[8]   Excellent photocatalytic degradation activities of ordered mesoporous anatase TiO2-SiO2 nanocomposites to various organic contaminants [J].
Dong, Weiyang ;
Sun, Yaojun ;
Ma, Qingwei ;
Zhu, Li ;
Hua, Weiming ;
Lu, Xinchun ;
Zhuang, Guoshun ;
Zhang, Shicheng ;
Guo, Zhigang ;
Zhao, Dongyuan .
JOURNAL OF HAZARDOUS MATERIALS, 2012, 229 :307-320
[9]   ACIDITY STUDIES OF TITANIA SILICA MIXED OXIDES [J].
DOOLIN, PK ;
ALERASOOL, S ;
ZALEWSKI, DJ ;
HOFFMAN, JF .
CATALYSIS LETTERS, 1994, 25 (3-4) :209-223
[10]  
Gharagozlou M., 2014, MAT RES B, V61, P340