Preparation of mesoporous TiO2with enhanced photocatalytic activity towards tannery wastewater degradation.
Ordered mesoporous TiO2materials are successfully synthesized via a sol-gel route using butyl titanate as a precursor and sodium dodecyl benzene sulfonate surfactants as soft templates. The as-prepared TiO2samples possess a relatively high surface area of 40.03 m2/g and the center of pore diameter distribution of 13.04 nm. They exhibit excellent photocatalytic activity towards degradation of organic pollutants in tannery wastewater under UV-light and natural sunlight irradiation. The effect of the catalyst dosage, the pH value of the solution and the concentration of H2O2are discussed in detail. This work would pave an avenue for purifying various industrial wastewaters through an advanced photocatalytic oxidation process.
College of Science, Tianjin University of Science & Technology, Tianjin 300457, China.
Weiwei
W
Zhao
College of Chemical Engineering and Material Science, Tianjin University of Science & Technology, Tianjin 300457, China E-mail: wangxc@tust.edu.cn.
Xiu
X
He
College of Chemical Engineering and Material Science, Tianjin University of Science & Technology, Tianjin 300457, China E-mail: wangxc@tust.edu.cn.
Yu
Y
Peng
College of Chemical Engineering and Material Science, Tianjin University of Science & Technology, Tianjin 300457, China E-mail: wangxc@tust.edu.cn.
Hongfeng
H
Zhang
College of Science, Tianjin University of Science & Technology, Tianjin 300457, China.
Donglan
D
Sun
College of Science, Tianjin University of Science & Technology, Tianjin 300457, China; College of Chemical Engineering and Material Science, Tianjin University of Science & Technology, Tianjin 300457, China E-mail: wangxc@tust.edu.cn.
Xiaocong
X
Wang
D057919:Biological Oxygen Demand Analysis; D002384:Catalysis / Q000528:radiation effects; D003116:Color; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D016062:Porosity; D013472:Sunlight; D013633:Tanning; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays; D062065:Wastewater / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis; D018508:Water Purification / Q000379:methods*; D014961:X-Ray Diffraction
D014025:Titanium; D062065:Wastewater; D014874:Water Pollutants, Chemical; C009495:titanium dioxide