Zhao Weiwei, He Xiu, Peng Yu, Zhang Hongfeng, Sun Donglan, Wang Xiaocong
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:
Water Sci Technol. 2017 Mar;75(5-6):1494-1499. doi: 10.2166/wst.2017.018.
Ordered mesoporous TiO materials 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 TiO samples possess a relatively high surface area of 40.03 m/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 HO are discussed in detail. This work would pave an avenue for purifying various industrial wastewaters through an advanced photocatalytic oxidation process.
通过溶胶-凝胶法，以钛酸丁酯为前驱体、十二烷基苯磺酸钠表面活性剂为软模板，成功合成了有序介孔TiO材料。所制备的TiO样品具有相对较高的比表面积，为40.03 m²/g，孔径分布中心为13.04 nm。它们在紫外光和自然阳光照射下，对制革废水中有机污染物的降解表现出优异的光催化活性。详细讨论了催化剂用量、溶液pH值和羟基自由基浓度的影响。这项工作将为通过先进的光催化氧化工艺净化各种工业废水开辟一条道路。
