不同糠醇添加量对TiO2/SiO2结构及其光催化性能的影响  

Effect of different FA additions on the structure and photocatalytic performance of TiO2/SiO2

作　　者：张晓栋 常薇[1] 郑丹丹[1] 尚嘉钰 朱国林 ZHANG Xiaodong;CHANG Wei;ZHENG Dandan;SHANG Jiayu;ZHU Guolin(School of Environmental and Chemical Engineering,Xi′an Polytechnic University,Xi′an 710048,China)

机构地区：[1]西安工程大学环境与化学工程学院

出　　处：《西安工程大学学报》2019年第5期499-503,共5页Journal of Xi’an Polytechnic University

基　　金：陕西省科技计划项目（2018GY-131）;西安市碑林区科技计划项目（GX1808）;大学生创新创业项目（201810709035)

摘　　要：采用溶胶-凝胶法制备TiO2/SiO2复合材料,考察在前驱液中不同糠醇加入量对材料结构及光催化性能的影响。采用X射线衍射(XRD)、红外光谱(IR)、扫描电镜(SEM)、N2吸附脱附等方法对所制备材料结构进行表征,并研究其对亚甲基蓝(MB)的光催化降解性能。结果表明:不同糠醇添加量对TiO2/SiO2的结构及光催化性能均会产生影响。当糠醇(FA)添加量为2mL时,所得材料的孔径为13.35nm,孔体积0.4161cm^3/g,比表面积134.7m^2/g,且对亚甲基蓝的光催化降解性能最好。Based on the advantages of TiO 2 and SiO 2 materials,TiO 2/SiO 2 composites were prepared by sol-gel method. The effect of different FA additions on the structure and photocatalytic activity of the material was investigated. The prepared materials were characterized by X-ray diffraction (XRD),infrared spectroscopy (IR),scanning electron microscopy (SEM) and N 2 adsorption-desorption. The photocatalytic degradation properties of TiO 2/SiO 2 to methylene blue (MB) were studied. The results show that the addition of different FA in the precusor has the effect both on the structure and photocatalytic properties of TiO 2/SiO 2. When the added FA reaches 2 mL,the obtained material has a pore diameter of 13.35 nm,a pore volume of 0.416 1 cm^3/g ,a specific surface area of 134.7 m^2/g,and the photocatalytic degradation performance to methylene blue is the best.

关 键 词：TIO2/SIO2 溶胶-凝胶法 糠醇量 光催化性能 

分 类 号：TQ031[化学工程]