碳纤维布上负载钨酸铋的光催化性能  

Photocatalytic behaviors of Bi_(2)WO_(6) loaded carbon fiber cloth

作　　者：王石 张行天 叶希章 陆笑笑 谷俐[3] Wang Shi;Zhang Xingtian;Ye Xizhang;Lu Xiaoxiao;Gu Li(School of Materials Science and Engineering, Zhejiang Sci-Tech University,Hangzhou 310018,Zhejiang,China;Chemistry Department, King’s College London,London,SE1 8WA;School of Materials and Textile Engineering,Jiaxing University,Jiaxing 314001,Zhejiang,China)

机构地区：[1]浙江理工大学材料科学与工程学院,浙江杭州310018 [2]Chemistry Department, King’s College London,London,SE1 8WA [3]嘉兴学院材料与纺织工程学院,浙江嘉兴314001

出　　处：《工业催化》2022年第2期35-40,共6页Industrial Catalysis

基　　金：国家自然科学基金(21473079)。

摘　　要：以柔韧性和耐腐蚀性强的碳纤维布为载体,通过水热法将Bi(HO_(3))_(3)·5H_(2)O和Na_(2)WO_(4)·2H_(2)O制备的前驱液负载在碳纤维布表面,在不同温度下进行焙烧处理制备了负载型纳米钨酸铋光催化剂,利用SEM、XRD和分光光度计等对制备的催化剂进行表征,并采用农药厂废水和罗丹明B等模拟污水进行光催化降解实验。结果表明,焙烧温度为300℃时负载钨酸铋的碳纤维布光催化形貌及性能最佳,太阳光照下80 min可降解90.80%的罗丹明B溶液,120 min可降解91.10%的农药废水。通过自由基捕获实验发现起主要降解作用的是·O_(2)^(-)和h^(+)。催化剂重复使用4次,对罗丹明B溶液降解率保持在80%以上,表明催化剂具有较好的稳定性。A supported Bi_(2)WO_(6) photocatalyst was prepared by hydrothermal method and calcination at different temperature,using flexible and corrosion-resistant carbon fiber cloth as the carrier.The photocatalyst was characterized by SEM,XRD and spectrophotometer.Simulated pesticide factory wastewater and Rhodamine B were used for photocatalytic degradation experiment.The results showed that best morphology and performance of the photocatalyst was obtained at calcination temperature of 300℃,with 90.80%degradation of RhB solution in 80 minutes and 91.10%degradation of pesticide wastewater in 120 minutes under sunlight irradiation.A radicals capturing experiment indicated that the functional radicals for degradation are·O_(2)^(-) and h^(+).The photocatalyst can be used for 4 times with RhB solution degradation kept at over 80%,showing that the photocatalyst has good activity stability.

关 键 词：催化剂工程 光催化 钨酸铋 碳纤维布 降解 

分 类 号：O643.36[理学—物理化学] O644.11[理学—化学]