ZnO:Mg@CuWO_(4)复合光阳极材料的制备及其光电催化性能的研究  

Preparation of ZnO:Mg@CuWO_(4)-Composite Photoanode Materials and Research on Their Photoelectrocatalytic Properties

作　　者：王杜彤 许华梅 Wang Dutong;Xu Huamei(Harbin Normal University,Harbin 150025,China)

机构地区：[1]哈尔滨师范大学,黑龙江哈尔滨150025

出　　处：《廊坊师范学院学报（自然科学版）》2024年第4期94-102,共9页Journal of Langfang Normal University(Natural Science Edition)

基　　金：黑龙江省自然科学基金联合引导项目(LH2021E092)。

摘　　要：通过水热法成功制备了ZnO:Mg@CuWO_(4)复合材料,首先使用XRD、SEM等测试方法对各个样品进行表征,而后进行光电催化测试以确定各样品的光电催化活性。实验表明,ZnO:Mg@CuWO_(4)复合材料比纯相CuWO_(4)具有更高的光电催化活性,且与纯相ZnO:Mg相比提高了稳定性。ZnO:Mg@CuWO_(4)复合材料成功提升了光阳极的光电流密度(约0.28 mA/cm2@1.23 V vs.RHE),是纯相CuWO_(4)(约0.16 mA/cm2@1.23 V vs.RHE)光阳极的1.8倍。ZnO:Mg@CuWO_(4)复合材料提高了表面电荷注入与分离效率,促进了界面电荷的转移,减少了光生载流子复合,从而提高了CuWO_(4)的光电催化效率。ZnO:Mg@CuWO_(4)composites were successfully prepared by hydrothermal method,characterised by XRD and SEM,and subjected to a series of photoelectrocatalytic tests.The results show that the ZnO:Mg@CuWO_(4)composites have better catalytic activity than the pure phase CuWO_(4)and improved stability compared with the pure phase ZnO:Mg.And the ZnO:Mg@CuWO_(4)photoanode has a high photocurrent density(~0.28 mA/cm2@1.23 V vs.RHE)which is 1.8 times higher than that of the pure phase CuWO_(4)(~0.16 mA/cm2@1.23 V vs.RHE)photoanode.The ZnO:Mg@CuWO_(4)composites prepared in the study improved the charge injection and separation efficiency,facilitated the interfacial charge transfer,and suppressed the photogenerated carrier complexation,thus enhancing the photoelectrocatalytic activity of CuWO_(4).

关 键 词：CuWO_(4) ZnO:Mg 光阳极 光电催化 

分 类 号：O469[理学—凝聚态物理]