负载型ZnO/CuS光催化剂的制备及光催化性能研究  

Preparation of supported ZnO/CuS photocatalyst and study on its photocatalytic performance

作　　者：方华扬 李泉 官继伦 李雯静 唐宁岳 程芳超 FANG Hua-yang;LI Quan;GUAN Ji-lun;LI Wen-jing;TANG Ning-yue;CHENG Fang-chao(School of Resources,Environment and Materials,Guangxi University,Nanning 530004,China;Guangxi Zhuang Autonomous Region Analysis and Testing Research Centre,Nanning 530022,China)

机构地区：[1]广西大学资源环境与材料学院,广西南宁530004 [2]广西壮族自治区分析测试研究中心,广西南宁530022

出　　处：《现代化工》2024年第6期140-145,共6页Modern Chemical Industry

基　　金：广西自然科学基金面上项目(2020GXNSFAA297028)。

摘　　要：采用连续离子层吸附反应法制备ZnO/CuS异质结光催化剂,通过与木质纤维素网络(CN)偶联成功制得负载型ZnO/CuS@CN催化剂。利用X射线衍射仪(XRD)、X射线光电子能谱仪(XPS)、扫描电子显微镜(SEM)、红外光谱(FT-IR)和电化学阻抗谱(EIS)对催化剂的元素组成、微观形貌和电学性能进行表征。通过罗丹明B(RhB)评估催化剂降解有机污染物的性能。结果表明,在模拟太阳光照射60 min后,ZnO/CuS@CN对50 mg/L RhB的降解率达到84.1%。自由基捕获实验表明,·O_(2)^(-)是主要活性物质。ZnO/CuS@CN对多种有机污染物均有良好的降解效果。ZnO/CuS heterojunction photocatalysts are prepared via the successive ionic layer adsorption reaction method,and the supported ZnO/CuS@CN catalysts are successfully prepared through coupling ZnO/CuS with cellulose network(CN).The elemental composition,micro-morphology and electrical properties of the catalysts are characterized by means of X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM),infrared spectroscopy(FT-IR)and electrochemical impedance spectroscopy(EIS).The performance of the catalysts for the degradation of organic pollutants is evaluated by taking rhodamine B as the target.Results show that the degradation rate of 50 mg·L-1 rhodamine B by ZnO/CuS@CN reaches 84.1%after having been irradiated by simulated solar for 60 minutes.Free radical trapping experiments show that·O_(2)^(-) is the main active matter.ZnO/CuS@CN shows good degradation effects on a variety of organic pollutants.

关 键 词：氧化锌 硫化铜 异质结 负载型催化剂 光催化 

分 类 号：TB3[一般工业技术—材料科学与工程] TQ09[化学工程]