摘要
TiO2-pillared montmorillonite catalysts were synthesized by the sol-gel method and then treated by ultrasonic and pressure.The catalysts were characterized by XRD,FT-IR and TEM,and the results indicated that all the TiO2-pillared montmorillonite contained anatase-like TiO2 particles between silicate layers of montmorillonite.The efficiency of phenol degradation under ultraviolet light with TiO2-PILM were tested,and the effects of phenol initial concentration and pH value on the efficiency of photocatalytic degradation of phenol were studied.The results indicated that the catalyst treated by ultrasonic and pressure showed higher photocatalytic activity.The efficiency of phenol degradation was higher at initial phenol concentration of 10—20 mg·L -1,TiO2-PILM dosage of 1 g·L -1 and pH value of 3—5.
by ultras indicated TiO2-pillared montmorillonite catalysts were onic and pressure. The catalysts were charact synthesized by the sol-gel method and then treated erized by XRD, FT-IR and TEM, and the results that all the TiO2-pillared montmorillonite contained anatase-like TiO2 particles between silicate layers of montmorillonite. The efficiency of phenol degradation under ultraviolet light with Ti were tested, and the effects of phenol initial concentration and pH value on the efficiency of degradation of phenol were studied. The results indicated that the catalyst treated by phot TiO2-PILM ocatalytic ultrasonic and pressure showed higher photocatalytic activity. The efficiency of phenol degradation was-higher at initial phenol concentration of 10-20 mg · L^-1 , TiO2-PILM dosage of 1 g·L^-1 and pH value of 3-5.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2006年第5期1242-1246,共5页
CIESC Journal
基金
国家自然科学基金项目(20371035)
天津市自然科学基金项目(043612111).~~
关键词
超声波
TiO2柱撑蒙脱土
苯酚
光催化
ultrasonic
TiO2-pillared montmorillonite
phenol
photocatalysis
作者简介
联系人：那平（1966-）,男,博士研究生,副研究员. E-mail：naping@tju.edu.cn
