硅酸盐通报2017，Vol.36Issue(11)：3829-3834,6.
LDO负载纳米二氧化钛复合物的制备及其光催化性能研究
Preparation and Photocatalytic Properties of Nano TiO2 Loaded on Layered Double Oxides
摘要
Abstract
Basing on the carrier of MgAl-CO3-LDH and the hydrolysis of tetra-n-butyl titanate,TiO2/layered double hydroxide (TiO2/LDH )was prepared by loading nano TiO2 on LDH layers via sol-gel method. Photocatalyst of TiO2/LDO was obtained by calcination TiO2/LDH. Influences of dosage of TiO2/LDO,pH and illumination time on photocatalytic properties were studied by photocatalytic degradation of the simulated dye pollutants of methylene blue solution under UV light (λ =291 nm ) irradiation. The results indicate that dispersity of nano TiO2 (<10 nm)can be improved by sol-gel method. The weight loading amout of TiO2 on LDH was about 8. 01wt%(in weight)in TiO2/LDH. The photocatalytic property of TiO2/LDO is higher than that of LDO. The loading TiO2 and the LDO layers have a synergistic photocatalytic effect on degradation of methylene blue. When 0. 20 g TiO2/LDO was added in the 80 mL methylene blue solution(pH=9)at concentration of 5 mg/L for 8 h,the degradation rate of methylene blue reached 81. 7%. The photocatalytic reaction of TiO2/LDO on methylene blue coincides with the first order kinetics equation.关键词
层状双氢氧化物/二氧化钛/溶胶-凝胶法/载体/光催化Key words
layered double hydroxide/TiO2/sol-gel method/carrier/photocatalysis分类
信息技术与安全科学引用本文复制引用
林茵茵,谢襄漓,李存军,王昕,张兵,王林江..LDO负载纳米二氧化钛复合物的制备及其光催化性能研究[J].硅酸盐通报,2017,36(11):3829-3834,6.基金项目
国家自然科学基金面上项目(41572034,41272064) （41572034,41272064）
广西生态型铝产业协同创新中心 （）
