摘要
为了提高ZnO的光催化性能,采用浸渍法制备环化聚丙烯腈(CPAN)修饰ZnO纳米复合微粒。通过X射线衍射法(XRD)、透射电镜(TEM)和X射线光电子能谱(XPS)等手段,对ZnO/CPAN纳米复合微粒及ZnO纳米微粒的粒径、晶型及结构进行了表征。利用甲基橙为模型污染物,紫外灯为光源,研究了ZnO/CPAN的紫外光催化性能。光催化实验结果表明,CPAN修饰ZnO可以显著提高其紫外光催化活性,ZnO/CPAN质量比为1 000︰1、热处理温度为150℃、热处理时间为30min时,光催化活性最强。
In order to improve the photocatalytic properties of ZnO, the cyclized polyacrylonitrile(CPAN) modified zinc oxide (ZnO) nanocomposites are prepared by impregnation method. The size,morphology, internal structure of ZnO/CPAN nanocomposite and ZnO nanoparticles are characterized by means of X-ray diffraction ( XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The UV-light photocatalytic activity of ZnO/CPAN is evaluated with methyl orange as model pollutant under UV-light irradiation. The results of photocatalytic experiment show that the CPAN modified ZnO can significantly improve the UV-light photocatalytic activity of ZnO particles. When the mass ratio of ZnO/CPAN is 1 000 : 1, the heat treatment temperature is 150 °C , and the heat treatment time is 30 min, the photocatalytic activity is the highest.
作者
刘彦彦
郑仁杰
吴迪
刘思洁
李雪艳
王德松
罗青枝
LIU Yanyan;ZHENG Renjie;WU Di;LIU Sijie;LI Xueyan;WANG Desong;LUO Qingzhi(School of Science, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China)
出处
《河北科技大学学报》
CAS
2016年第3期238-244,共7页
Journal of Hebei University of Science and Technology
基金
河北省自然科学基金(E2015208030)
关键词
催化化学
浸渍法
氧化锌
环化聚丙烯腈
紫外光催化活性
纳米微粒
catalyticchemistry
impregnation method
ZnO
cyclized polyacrylonitrile
UV-light photocatalyzation
nanocomposite particles
