论文部分内容阅读
通过苯乙烯聚合制备了聚苯乙烯微球胶体,采用浸渍-提拉制备成为紧密堆积的PS球胶晶模板,微球之间的间隙采用溶胶-凝胶法制备的WO3溶胶填隙,最后通过煅烧得到有序规则排列的多孔WO3薄膜。通过XRD、SEM对WO3多孔薄膜的结构及形貌进行了表征,并评价了薄膜的光催化性能。结果表明,在450℃高温下煅烧PS模板,得到有序排列的多孔WO3薄膜,平均粒径为150nm,光催化效率最高。
Polystyrene microsphere colloids were prepared by styrene polymerization. The PS gelatin crystal templates were closely packed by immersion-pulling. The gaps between the microspheres were filled with WO3 sol prepared by sol-gel method and finally passed Calcined to obtain ordered ordered arrangement of porous WO3 film. The structure and morphology of WO3 porous films were characterized by XRD and SEM, and the photocatalytic properties of the films were evaluated. The results showed that the ordered porous WO3 films were obtained by calcining the PS template at a high temperature of 450 ℃. The average particle size was 150 nm and the photocatalytic efficiency was the highest.