BiVO_(4)/Ag/Cu_(2)O纳米复合材料的制备及其对四环素的光催化性能研究  

Preparation of BiVO_(4)/Ag/Cu_(2)O nanocomposites and their photocatalytic activity for tetracycline degradation

作　　者：马冲亚[1] 刘福祺 何浩诚 王晓涵 赵文诗 MA Chong-ya;LIU Fu-qi;HE Hao-cheng;WANG Xiao-han;ZHAO Wen-shi(College of Geographic Science and Tourism,Jilin Normal University,Siping 136000,China;College of Physics,Jilin Normal University,Siping 136000,China)

机构地区：[1]吉林师范大学地理科学与旅游学院,吉林四平136000 [2]吉林师范大学物理学院,吉林四平136000

出　　处：《吉林师范大学学报(自然科学版)》2025年第1期38-42,共5页Journal of Jilin Normal University:Natural Science Edition

基　　金：吉林省科技发展计划项目(20240101074JC)。

摘　　要：采用水热法和湿化学还原法成功合成了BiVO_(4)纳米晶体、BiVO_(4)/Cu_(2)O和BiVO_(4)/Ag/Cu_(2)O纳米复合材料,并利用X射线衍射仪(XRD)、场发射扫描电子显微镜(SEM)和紫外-可见分光光度计(UV-Vis)对三组样品的结构、微观形貌及其四环素的光催化降解效果进行了分析.结果表明:Cu_(2)O和Ag纳米晶体成功附着在形状近似十面体的BiVO_(4)纳米晶体的表面;BiVO_(4)纳米晶体、BiVO_(4)/Cu_(2)O和BiVO_(4)/Ag/Cu_(2)O纳米复合材料对四环素展现出不同程度的降解效果,其中BiVO_(4)/Ag/Cu_(2)O纳米复合材料的光催化性能最强,且循环6次后仍保持优异的光催化性能.本研究为光催化剂的优化提供了新的思路,并在处理有机废水方面展现出广阔的应用前景.BiVO_(4) nanocrystals,BiVO_(4)/Cu_(2)O and BiVO_(4)/Ag/Cu_(2)O nanocomposites were successfully synthesized using hydrothermal and wet chemical reduction methods.X-ray diffraction(XRD),field emission scanning electron microscopy(SEM)and UV-Vis spectrophotometer were used to analyze the structure,microstructure and the photocatalytic degradation effect towards tetracycline of the three samples.Experimental results indicate that Cu_(2)O and Ag nanocrystals are successfully attached to the surfaces of BiVO_(4) nanocrystals with similar decahedral shape.BiVO_(4) nanocrystals,BiVO_(4)/Cu_(2)O and BiVO_(4)/Ag/Cu_(2)O nanocomposites show different degradation effects towards tetracycline.Among them,BiVO_(4)/Ag/Cu_(2)O nanocomposites exhibit the strongest photocatalytic performance and maintain excellent catalytic performance even after six cycles.This study provides a new idea for the optimization of photocatalyst and shows a broad application prospect in the treatment of organic wastewater.

关 键 词：BiVO_(4)/Ag/Cu_(2)O纳米复合材料 四环素 光催化降解 

分 类 号：O643.36[理学—物理化学]