摘要
以钛酸丁酯为钛源,La2O3和Y2O3作为掺杂物,掺杂比例为0、0.50%、1.00%、1.50%和2.00%(质量分数)。采用一步合成法制备金红石相TiO2粉体、La/Y掺杂金红石相TiO2粉体。利用XRD、UV-Vis、Zeta电位和粒度等手段表征了光催化剂的晶体结构、光吸收能力等方面的物理化学性质。以甲基红为降解模型,其反应动力学结果表明,1.00%(质量分数)La掺杂金红石相TiO2吸附效果最好,其与实验结论相吻合。
Using Ti（OBu）4 as the source of titanium,rutile TiO2 powder and La2O3,Y2O3 doped rutile TiO2 powder were prepared by one step synthesis. The crystal structure,optical absorption properties were characterized respectively by XRD,UV-Vis,Zeta potential,etc. The degradation of methyl red was chosen as the probe reaction to examine the photocatalytic activities of as prepared TiO2 materials. The results showed that rare earth-ion doping could enhance optical adsorption; The best results of catalysts is that rutile RE-doped to 1.00 percent TiO2,The result of the experiment is in accordance with the theoretical prediction.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第5期755-758,762,共5页
Journal of Functional Materials
基金
国家自然科学基金资助项目(10776027)
教育部青年教师奖资助项目(2002383405)
中哈国际合作资助项目(2006020021)
西南科技大学研究生创新基金资助项目(09ycjj17)
