ZrO_(2)-(NH_(4))_(3)PW_(12)O_(40)光催化降解罗丹明B  

Photocatalytic degradation of Rhodamine B with ZrO_(2)-(NH_(4))_(3)PW_(12)O_(40)

作　　者：冯少凡 李征[2] 李芳[3] 郝泽坤 胡乐 李静 FENG Shaofan;LI Zheng;LI Fang;HAO Zekun;HU Le;LI Jing(School of Civil Engineering and Transportation,Hebei University of Technology,Tianjin 300401,China;First Design&Research Insitute,North China Municipal Engineering Design&Research Insitute,Tianjin 300074,China;School of Chemical Engineering,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]中国市政工程华北设计研究总院第一设计研究院,天津300074 [3]河北工业大学化工学院,天津300401

出　　处：《化工环保》2022年第2期225-230,共6页Environmental Protection of Chemical Industry

基　　金：河北省住房和城乡建设厅科研项目(2014-230)。

摘　　要：采用水热沉淀法制备了ZrO_(2)-(NH_(4))_(3)PW_(12)O_(40)复合光催化剂。采用XRD、SEM、TEM、UV-Vis DRS和FTIR等技术对催化剂进行了表征,并通过光催化降解罗丹明B(RhB)评价其光催化性能。实验结果表明:ZrO_(2)与(NH_(4))_(3)PW_(12)O_(40)的配比对催化剂的形貌和光催化性能均有影响,当n(Zr)∶n(W)=1∶5时催化剂的分散性好,光催化活性较高;紫外光照射90 min后,RhB的降解率达到96.69%;重复使用4次后,该催化剂仍保持较高的催化活性。ZrO_(2)-(NH_(4))_(3)PW_(12)O_(40)composite was prepared via hydrothermal and precipitation two-step method and characterized by XRD,SEM,TEM,UV-Vis DRS and FTIR.The photocatalytic activity of the composite was evaluated by photocatalytic degradation of rhodamine B(RhB).The experimental results show that:The proportioning of ZrO_(2)and(NH_(4))_(3)PW_(12)O_(40)affected both morphology and photocatalytic activity of the catalyst,and the composite with n(Zr)∶n(W)=1∶5 shows better dispersion and higher photocatalytic activity;The RhB degradation rate can reach 96.69%after 90 min of UV-irradiation;The catalyst can maintain high activity after reused for 4 times.

关 键 词：光催化降解 罗丹明B ZrO_(2) (NH_(4))_(3)PW_(12)O_(40) 

分 类 号：X703[环境科学与工程—环境工程]