F掺杂膨润土负载PbSnO_3复合光催化剂的制备及对亚甲基蓝的光催化降解性能  

Preparation of Fluorine/Bentonite/PbSnO_3 Composite Photocatalyst and Its Photocatalytic Activity for the Degradation of Methyl Blue

作　　者：王红军[1] 吕晨媛 方旭旭[1] 华香[1] 杨术明[1] 

机构地区：[1]信阳师范学院化学化工学院,河南信阳464000

出　　处：《信阳师范学院学报（自然科学版）》2017年第3期432-435,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(21607121);河南省科技计划项目(172102310744);河南省教育厅科学技术研究重点项目(12A150021)

摘　　要：以NH_4F为氟源、膨润土为载体,采用水热合成法制备出了F掺杂膨润土负载PbSnO_3复合光催化剂.采用XRD、IR、SEM等分析手段对样品的形貌和结构进行了表征.并在可见光条件下,以亚甲基蓝溶液作为目标降解物,研究了其光催化性能.结果表明:当光照时间为12 min、F掺杂质量分数为0.04%、光催化剂用量为40mg/L时,其对亚甲基蓝溶液降解效率最高,降解率超过97%.Photocatalysts of fluorine/bentonite/PbSnO_3 composite photocatalysts were prepared by hydrothermal method.The morphology and structure of the samples were characterized by XRD、IR and SEM.Its photocatalytic activity for the degradation of methyl blue was also investigated under visible light irradiation.The results indicated that the photo-degradation efficiency could reach over 97% when the fluorine-doping ratio was 0.04%,the amount of photocatalysts was 40mg/L,and the reaction time was 12 min.

关 键 词：水热合成 F掺杂 PbSnO3 光催化降解 亚甲基蓝 

分 类 号：O657.32[理学—分析化学]