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中文摘要: 采用溶胶-凝胶浸渍法制备了纯的和Gd^3＋掺杂的纳米TiO2，并利用XRD、UV-Vis漫反射光谱对样品进行了表征。考察了Gd^3＋掺杂对TiO2催化活性的影响。结果发现Gd^3＋的掺入阻止了TiO2由锐钛矿相向金红石相的转变，抑制了晶粒的生长。与纯TiO2相比，Gd^3＋掺杂的TiO2在紫外区的光吸收能力增强，TiO2催化剂光催化分解水制氢活性提高了56％。
Abstract:Pure and Gd3+-doped TiO2 nanoparticle photocatalysts were prepared by sol-gel impregnation process,and characterized by means of X-ray diffraction and UV-Vis diffuse reflectance spectra.The effects of Gd3+ doping on the photocalytic activity of TiO2 were investigated.The results show that the transformation from anatase to rutile and the grain growth of TiO2 was prevented by doping Gd3+.The absorption intensity in the region of ultraviolet light of Gd3+-doped TiO2 were promoted compared with pure TiO2.The activity of hydrogen generation from water 56% was increased.
keywords: Gd
文章编号： 中图分类号：TF383 文献标志码：
基金项目:国家重点基础研究发展计划(973计划);江西省教育厅科研项目;南昌大学校科研和教改项目
LI Feng-li PENG Shao-qing LI Yue-xiang
Department of Chemistry, Nanehang University, Nanehang 330047,China
引用文本：
李凤丽,彭绍琴,李越湘.Gd3+掺杂纳米TiO2的制备及性能[J].有色金属（冶炼部分）,2007(3):41-42,49.
.The Preparation and Performance of Nanoparticle Gd3+-doped TiO2[J].Nonferrous Metals (Extractive Metallurgy),2007(3):41-42,49.
李凤丽,彭绍琴,李越湘.Gd3+掺杂纳米TiO2的制备及性能[J].有色金属（冶炼部分）,2007(3):41-42,49.
.The Preparation and Performance of Nanoparticle Gd3+-doped TiO2[J].Nonferrous Metals (Extractive Metallurgy),2007(3):41-42,49.
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