用于紫外光下氰化物光催化氧化的含硫纳米复合材料的制备和表征(英文) E.S.Baeissa 【期刊名称】《催化学报》 【年(卷),期】2015(36)5 【摘 要】A sol-gel method was used to prepare TiO_2 and sulfur-TiO_2(S-TiO_2) nanocomposites, which were characterized by N_2 adsorption-desorption, X-ray diffraction, X-ray photoelectron spectroscopy, photoluminescene, ultraviolet visible and transmission electron microscopy measurements. The photocatalytic performance of TiO_2 and S-TiO_2 nanocomposites, with respect to the photocatalytic oxidation of cyanide under visible light irradiation, was determined. The results reveal that S is well dispersed on the surface of TiO_2 nanoparticles. Additionally, the surface area of the S-TiO_2 nanocomposites was observed to be smaller than that of the TiO_2 nanoparticles because of blocked pores caused by doping with S. The S-TiO_2 nanocomposite(0.3 wt% S) exhibited the lowest band gap and the highest photocatalytic activity in the oxidation of cyanide. The photocatalytic performance of S-TiO_2(0.3 wt% S) nanocomposites was stable, even after the fifth reuse of the nanoparticles for the oxidation of cyanide. 【总页数】7页(P698-704) 【关键词】二氧化钛纳米颗粒;纳米复合材料;可见光照射;光催化氧化;氧化特性;氰化物;X射线光电子能谱;透射电子显微镜 【作 者】E.S.Baeissa 【作者单位】Chemistry Department, Faculty of Science, King Abdulaziz University 【正文语种】中 文 【中图分类】O484.1;TB383 【相关文献】 1.不同形貌纳米ZnO、ZnO2的制备及紫外光下光催化性能的表征 [J], 邹萍萍;薛亮;柯友涛 2.纳米镍/介孔二氧化硅复合材料的组装及结构和性质Ⅰ:纳米镍/介孔二氧化硅复合材料的制备及结构表征 [J], 吴玉程;李广海;张立德 3.碳纳米管-二氧化钛纳米复合材料的制备、表征及其光催化性能 [J], 安洋;杨柳;彭邦华;刘志勇 4.紫外-可见光催化活性的硫酸铵改性含钛高炉渣光催化剂的制备（英文） [J], 雷雪飞;薛向欣;杨合 5.高活性纳米二氧化钛光催化剂的溶胶-凝胶法制备和表征(英文) [J], 邸云萍;徐利华;张文丽;王缓 因版权原因，仅展示原文概要，查看原文内容请购买 本文来源：https://www.wddqw.com/doc/bcb78a0a383567ec102de2bd960590c69fc3d802.html