Synthesis of Three-dimensionally Ordered Macroporous TiO2 and TiO2/WO3 Composites and Their Photocatalytic Performance
Synthesis of Three-dimensionally Ordered Macroporous TiO2 and TiO2/WO3 Composites and Their Photocatalytic Performance
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三维有序大孔TiO2和TiO2/WO3复合材料的合成及其光催化性能
DOI：
10.1002/zaac.201800185
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发表时间：
2018-10-02
影响因子：
1.4
通讯作者：
Cai, Zhenyu
中科院分区：
文献类型：
--
作者：
Huang, Kai;Cai, Zhenyu
This work presents the characterization and preparation of three-dimensionally ordered macroporous TiO2 and TiO2/WO3 composite nanoparticles with enhanced visible-light-responsive properties for rhodamine B (Rh B) photodegradation. The 3DOM TiO2 and TiO2/WO3 composites were prepared through a dip-infiltrating sol-gel process using a polystyrene (PS) colloidal crystal template. The materials were characterized by SEM, TEM, XRD, BET, XPS and UV/Vis. The 3DOM TiO2/WO3 composite structures ranged from well-defined 3DOM structures, which are highly ordered and interconnected via small pore windows, to collapsed three-dimensional structures as the WO3 content increased. The photoresponse range and specific surface area of the composite increased with less than 0.025 g of WCl6. The 3DOM TiO2/WO3 composite with less than 0.025 g of WCl6 exhibited a higher catalytic activity than 3DOM TiO2 for the photocatalytic degradation of Rh B under simulated sunlight illumination.
