摘要
制备了一种镧/钛共掺杂的硅基材料(SM-La-Ti),探究了其对亚甲基蓝溶液的吸附和光催化能力。结果表明,pH值在7~12时材料的吸附和光催化性能良好,吸附反应在前15 min进行迅速,并在90 min达到平衡,符合准二级动力学方程和Fruendich方程。该材料的光催化性能良好,吸附完成后仍能通过光催化进一步去除亚甲基蓝。
A silicon-based material codoped with lanthanum/titanium(SM-La-Ti) was prepared and its adsorption and photocatalytic capacity for methylene blue solution was investigated. The results showed that the adsorption and photocatalytic properties of the material were good at pH of 7~12. The material was rapidly adsorbed in the first 15 minutes and reached the adsorption equilibrium in 90 minutes. The adsorption reaction was in line with the quasi-second-order kinetic equation and the Fruendich equation. The photocatalytic performance of the material was good, and the methylene blue could be further removed by photocatalysis after adsorption.
作者
张柏赫
李丽颖
徐丽琴
梁绵玉
赵迪
邵宁宁
Zhang Baihe;Li Liying;Xu Liqin;Liang Mianyu;Zhao Di;Shao Ningning(School of Environmental and Chemical Engineering,Tianjin Polytechnic University,Tianjin 300387,China;State Key Laboratory of Separation Membrane and Membrane Process,Tianjin 300387,China)
出处
《供水技术》
2019年第2期10-13,共4页
Water Technology
关键词
镧/钛掺杂
亚甲基蓝
吸附
光催化
lanthanum/titanium doping
methylene blue
adsorption
photocatalysis
