【作者】 樊君； 曾波； 刘恩周； 李海瑞； 徐春； 陈国亮；

【Author】 FAN Jun ZENG Bo LIU En-zhou LI Hai-rui XU Chun CHEN Guo-liang (College of Chemical Engineering,Northwest University,Xi’an 710069,China)

【机构】 西北大学化工学院；

【摘要】 讨论采用改良的溶胶-凝胶法,以钛酸丁酯为前驱体,以冰醋酸为整合剂,通过水解缩聚作用制备纳米 TiO₂,掺杂稀土金属进行改性,进行 CO₂光催化还原制甲醇研究；利用 X 射线衍射（XRD）、高分辨透射电镜（HRTEM）、BET 比表面积、光致发光光谱（PL）技术来分析制得的光催化材料结构、吸光性能、化学吸附等特性,期待能弄清楚纳米 TiO₂结构与催化效果之间的关系,从而确定主导 CO₂光催化还原反应效率的因素．更多还原

【Abstract】 The improved sol-gel process was used to prepare nanostructured materials.With HAc as complexation and Ti（OBu）₄ as precursor in the start materials,TiO₂ gelation was obtained through hydrolyse and condensation process. Rare-earth was introduced into the nanostructured TiO₂ to improve the photocatalystic capacity on photoreduction of carbon oxidation.The phase structure of the doped TiO₂ and their photocatalystic capacity were studied using XRD, HRTEM,PL and optical adsorption etc.Hoped to clear the relationship between the structure of nano-TiO₂ and its photocatalystic catacity,then decide the main factor of photoreduction of carbon oxidation reaction.更多还原