摘要
采用溶胶-凝胶法,制备掺铁纳米TiO2,用XRD、TEM等方法进行了表征;研究了掺铁纳米TiO2催化降解含阿奇霉素废水的效率。结果表明,焙烧温度会影响纳米TiO2晶型的转变;混合晶型的纳米TiO2催化效率高于锐钛矿型;Fe掺杂以后,可以明显提高TiO2的催化活性,且在废水pH为6.4,紫外光源为20 W照射30 m in时的降解效果最佳。
Nanoparticle Fe -TiO2 were prepared by sol-gel method, the surface morphology was characterized by XRD and TEM;The rate of UV photocatalytic degradation pharmaceutical wastewater was measured. The results showed that the temperature of heat treatment could effect the change of crystal of nanoparticle TiO2 ; Mixed structure was higher in photocatalytic activity than anatase TiO2 ; Photocatalytic activity of nanoparticle TiO2 could be increased greatly after doping Fe, and the photodegradation efficiency of nanoparticle TiO2 was best under the condition of 20 W,pH 6.4,30 min.
出处
《应用化工》
CAS
CSCD
2007年第1期44-46,50,共4页
Applied Chemical Industry
关键词
纳米TIO2
掺铁
光催化
降解
nanoparticle TiO2
Fe- dopping
photocatalytic
degradation
