摘要
采用溶胶-凝胶-程序升温一步法合成了复合材料K_8P_2V_2W_(16)O_(62)/TiO_2,经X-射线衍射(XRD)、扫描电子显微镜(SEM)对复合材料的结构和形貌进行了表征。结果表明,复合材料K_8P_2V_2W_(16)O_(62)/TiO_2中呈锐钛矿晶型结构的TiO_2附着在多酸K_8P_2V_2W_(16)O_(62)表面。以罗丹明B为模型分子,分别考察了K_8P_2V_2W_(16)O_(62)、TiO_2及复合材料K_8P_2V_2W_(16)O_(62)/TiO_2在紫外光下的降解性能,发现在120 min内,K_8P_2V_2W_(16)O_(62)/TiO_2的光催化活性优于K_8P_2V_2W_(16)O_(62)和TiO_2。
The K8P2V2W16062/TiO2 composite catalyst was successfully prepared by sol-gel temperature-programmed one-step method. To investigate the phase structures and surface properties of the composite material, the samples were characterized by X-ray diffraction （XRD） patterns and scanning electron microscope （SEM）. The results indicated that anatase TiO2 was on the surface of KsP2V2W16O62/TiO2 composite catalysts. Its behavior of photocatalytic degradation of photodegradation of Rhodamine B （RhB） in aqueous solution was investigated. The K8P2V2W16O62/TiO2 composite prepared exhibited higher photocatalytic activities than that of KsPaV2W16O62 and TiO2 within
出处
《广州化学》
CAS
2017年第4期59-62,共4页
Guangzhou Chemistry
基金
黑龙江省教育厅科研项目(135109213)
齐齐哈尔市科技项目(GYGG-201501)
齐齐哈尔大学青年教师科研启动项目(2014k-Z13)
2016年黑龙江省大学生创新创业训练计划资助项目(201610221057)
关键词
复合催化剂
光催化
罗丹明B
120 min. composite catalyst
photocatalysis
rhodamine B
