Abstract: Taking titanium sulfate and tetrabutyl titanate as raw materials, mesoporous TiO₂ was prepared by the method of hydrothermal. The samples were characterized by XRD, 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 m²/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 are respectively maintained above 90% and 70%.

Keywords： mesoporous TiO₂; adsorption; congo red

中图分类号：O643.3          文献标志码：A

文章编号：1008-5548（2014）03-0030-05

DOI:10.13732/j.issn.1008-5548.2014.03.007

收稿日期：2013-11-1， 修回日期：2013-12-10，在线出版时间：2014-06-24。

基金项目：国家自然科学基金项目，编号：20861006、21267016。

第一作者简介：张冬云（1986—），女，硕士研究生，研究方向为无机纳米材料及其应用。 E-mail:z_dongyun123@163.com。

通信作者简介：长山（1959—），男，博士，教授，研究方向为半导体光催化剂及纳米磁性材料。 E-mail:asuha@imnu.edu.cn。