摘要
锌掺杂多孔SiO2/TiO2(多孔Zn-SiO2/TiO2)复合薄膜自清洁玻璃以含聚乙二醇的钛醇盐和硅醇盐的复合溶胶前驱体通过浸渍提拉法制备。结果表明,在TiO2薄膜中添加SiO2可抑制TiO2晶粒长大,并提高TiO2薄膜的亲水性;随着聚乙二醇添加量的增加,锌掺杂多孔SiO2/TiO2薄膜的孔隙增多,表面积增大;经500℃煅烧的多孔Zn-SiO2/TiO2复合薄膜中,TiO2主要为催化效率高的锐钛矿相;多孔Zn-SiO2/TiO2复合薄膜表观光催化降解速率明显高于未掺锌多孔SiO2/TiO2薄膜。
The porous Zn-doped SiO2/TiO2 （porous Zn-SiO2/TiO2 ） composite thin films on the glass sub- strate were prepared from alkoxide solutions containing polyethylene glycol（PEG） by sol-gel method. The results showed that the addition of SiO2 to TiO2 thin films can suppress the grain growth of TiO2 erystat in the TiO2 thin films,low the contact angle for water of TiO2 films;the pore size is adjusted b7 adding differ- ent amount of PEG, the anatase TiO2 can grow on the porous Zn-SiOJTiO2 composure： thin films at 500. ℃ ;studies of photocatalytie d posite thin films were higher than egradation show that the degradation rate of porotts Zn-SiO2/TiO2 comthat of un-doped porous SiOJTiO2 compositie thin films
出处
《应用化工》
CAS
CSCD
2013年第2期385-388,共4页
Applied Chemical Industry
