溶胶-凝胶法制备共掺杂负载型二氧化钛光催化剂  

Preparation on Photocatalysis Activities of Co-Doping TiO_2 by Sol-Gel Method

作　　者：苗征[1] 朱绒霞[1] 赵建峰[1] 

机构地区：[1]空军工程大学理学院,西安710051

出　　处：《空军工程大学学报（自然科学版）》2016年第6期104-108,共5页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家自然科学基金(51575524)

摘　　要：以钛酸丁酯为Ti源,采用溶胶-凝胶法合成了"不同金属-N"共掺杂的TiO_2纳米粉体,比较了乙醇用量对酞酸四丁酯水解的影响,用紫外-可见光吸收光谱(UV-Vis)和X射线衍射(XRD)对掺杂型TiO_2粉体的光催化活性和尺寸进行了表征.结果表明:凝胶时间按钛酸四丁酯与无水乙醇体积比的增大依次增加;单一金属掺杂的光催化剂光活性较多种金属更强,相较Mn^(2+),Cu^(2+),Fe^(3+),Al^(3+),Ba^(2+),Co^(2+)与Fe^(3+),Co^(2+)与N共掺杂TiO_2粉体可见光活性最强。Takingtetrabutyl titanate as Ti source, this paper synthesizes the ＂different metal-N＂ codoped TiO2 nano powder by sol-gel method, and compares the effects of alcohol＇ amount on phthalic acid ester hydrolysis. The photoeatalytic activity and size of doped TiO2 powder are characterized by ultraviolet-visi- ble absorption spectroscopy （UV-Vis） and X-ray diffraction （XRD）. The result shows that the gel time in turn increases with the increase of tetrabutyl titanate butyl and anhydrous ethanol volume ratio. The single metal doped light catalyst activity is stronger than that of various metals. Compared with Mn^2＋ , Cu^2＋ ,Fe^3＋ , Al^3＋ , Ba^2＋ , CO^2＋ and Fe^3＋ , the CO^2＋ and N-Co doped TiO2 powder is the most active under condition of visible-light.

关 键 词：溶胶-凝胶法 TIO2粉体 共掺杂 光催化 

分 类 号：TN918.1[电子电信—通信与信息系统]