介孔TiO_2的合成及其对刚果红的吸附性能  

Synthesis of Mesoporous TiO_2 and Its Adsorption Ability for Congo Red

作　　者：张冬云[1] 白孟兰[1] 李新梅[1] 赵斯琴[1] 长山[1] 

机构地区：[1]内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特010022

出　　处：《中国粉体技术》2014年第3期30-33,38,共5页China Powder Science and Technology

基　　金：国家自然科学基金项目;编号:20861006;21267016

摘　　要：分别以硫酸钛和钛酸丁酯为原料,采用水热法制备介孔TiO2,对制得的样品进行X射线衍射、N2吸附-脱附、表面羟基面密度测定等表征,并以刚果红为目标污染物研究样品的吸附性能。结果表明:所得样品均为介孔材料;由硫酸钛和钛酸丁酯制备TiO2的比表面积分别为153.2、314.3 m2/g,对刚果红的吸附率分别达到90%和70%以上,吸附速率符合拟二级动力学方程。Taking titanium sulfate and tetrabutyl titanate as raw materials, mesoporous TiO2 was prepared by the method of hydrothermal. The samples were characterized byXRD, N2 adsorption-desorption, and surface hydroxyl groups measurements. Congo red was selected as a target contaminant to study adsorption ability of the samples. The results show that the samples prepared from titanium sulfate and tetrabutyl titanate have mesoporous structures with specific surface areas of 153.2 and 314.3 m^2/g, respectively. The adsorption kinetics of congo red fit well with pseudo second order kinetics equation. The adsorption ratios of congo red by both samples arc respectively maintained above 90% and 70%.

关 键 词：介孔TIO2 吸附 刚果红 

分 类 号：O643.3[理学—物理化学]