Zr／TiO2纳米管的制备及其光催化活性的初步研究  

Preparation of Zr-doped TiO_2 composite nanotubes and investigation of their photocatalytic activity

作　　者：刘国光[1,2] 郭小阳[1] 郑立庆[1] 李维[1] 毛小权[1] 娄淑芳[3] 张治军[4] 

机构地区：[1]河南师范大学化学与环境科学学院,河南省环境污染控制重点实验室,新乡453007 [2]广东工业大学环境科学与工程学院,广州510006 [3]商丘医学高等专科学校,商丘476000 [4]河南大学特种功能材料重点实验室,开封475001

出　　处：《环境科学学报》2008年第4期710-713,共4页Acta Scientiae Circumstantiae

基　　金：河南省创新人才工程项目(教高[2001]513号);国家自然科学基金项目(No20677012);广东省科技计划项目(No006A36701003);广东省自然科学基金团队项目(No04205301);广州市科技计划项目(No2005z3-D2081)~~

摘　　要：采用水热合成法以锐钛型Zr/TiO2纳米粒子为原料制备了掺杂锆二氧化钛纳米管,用TEM、EDS、BET对其进行了表征.结果表明,采用水热合成法制备的纳米管,其形貌均一,多层管壁.比表面积达到了291m2·g-1,远远大于Zr/TiO2纳米颗粒的比表面积(76m2·g-1).以罗丹明B为目标降解物的光催化实验表明,与Zr/TiO2纳米颗粒相比,Zr/TiO2纳米管的光催化活性有了显著的提高.Zr-doped TiO2 nanotubes were successfully synthesized by a hydrothermal method, using Zr-doped anatase TiO2 powders as precursor. The nanotubes were characterized by TEM ,EDS and BET. The results showed that the Zr-doped TiO2 nanotubes were regular, multi-walled tubes with large surface areas. The surface area of the Zr/TiO2 nanotubes was 291 m^2·g^-1 ,which is much larger than the 76 m^2·g^-1 surface area of Zr/TiO2nanopowders. The Zr-doped TiO2 nanotubes had higher photocatalytie activity for the degradation of Rhodamine B （RB） than that of Zr-doped TiO2 nanopowders.

关 键 词：二氧化钛纳米管 水热合成法 zr掺杂 光催化 

分 类 号：X13[环境科学与工程—环境科学]