CeO_(2)-CoO_(x)/BiVO_(4)的制备及其对有机工业废水的光催化降解研究  

Preparation of CeO_(2)-CoO_(x)/BiVO_(4)and its application in photocatalytic degradation of organic industrial wastewater

作　　者：孙心 段淑茹 朱开金 朱鹏宇 龙浩鹏 SUN Xin;DUAN Shu-ru;ZHU Kai-jin;ZHU Peng-yu;LONG Hao-peng(School of Environment and Safety Engineering,North University of China,Taiyuan 030051,China;Department of Materials Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China;School of Environmental and Biological Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]中北大学环境与安全工程学院,山西太原030051 [2]太原工业学院材料工程系,山西太原030008 [3]南京理工大学环境与生物工程学院,江苏南京210094

出　　处：《现代化工》2024年第6期185-190,共6页Modern Chemical Industry

基　　金：山西省专利转化专项计划项目(202306010);大同市重点研发计划项目(2023002)。

摘　　要：通过浸渍和煅烧制备了新型光催化剂BiVO_(4)、CoO_(x)/BiVO_(4)与CeO_(2)-CoO_(x)/BiVO_(4),并通过XRD、SEM、TEM和XPS等手段对催化剂进行表征与分析,探讨了催化剂在不同条件下对有机工业废水的光催化性能。结果表明,CeO_(2)-CoO_(x)/BiVO_(4)复合型光催化剂的降解效果最好,处理废水2 h后COD降解效率达到61%,说明掺杂负载可以有效提高催化性能;最佳光照时间为120 min,最佳投药量为1.0 g/L,且具有良好的稳定性。Novel photocatalysts including BiVO_(4),CoO_(x)/BiVO_(4)and CeO_(2)-CoO_(x)/BiVO_(4)are synthesized through impregnation and calcination,and characterized by means of XRD,SEM,TEM,and XPS.Their catalytic performance for industrial wastewater under different conditions is analyzed.The results show that CeO_(2)-CoO_(x)/BiVO_(4)composite photocatalyst delivers the best degradation effect,over which the COD degradation efficiency of wastewater reaches 61%after 2 hours of treatment,indicating that doping loading can effectively improve catalytic performance.The optimal illumination time and dosage quality are 120 minutes and 1.0 g/L,respectively,and the photocatalyst has good stability.

关 键 词：BiVO_(4) 光催化 可见光 工业废水 降解 

分 类 号：X703[环境科学与工程—环境工程]