软模板法制备CeO_(2)催化材料及其催化性能研究  

Preparation of CeO_(2)Catalytic Materials by Soft Template Method and its Catalytic Performance Study

作　　者：鲁眩眩 王飞 赵国峥[1] 梁慧 LU Xuanxuan;WANG Fei;ZHAO Guozheng;LIANG Hui(School of Environmental and Safety Engineering,Liaoning Shihua University,Fushun 113001,China;Liaoning Qingyuan Environmental Energy Technology Co.,Ltd.,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学环境与安全工程学院,辽宁抚顺113001 [2]辽宁清远环境能源科技有限公司,辽宁抚顺113001

出　　处：《化工技术与开发》2022年第10期1-4,47,共5页Technology & Development of Chemical Industry

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07202-002);辽宁省教育厅重点攻关项目(L2020003);辽宁省教育厅项目(L2020020)。

摘　　要：采用软模板法制备了系列CeO_(2)/g-C_(3)N_(4)催化剂,利用X射线衍射分析(XRD)、扫描电子显微镜(SEM)、透射电子显微镜分析(TEM)、X射线光电子分析(XPS),对制备的催化剂进行表征。表征结果显示,CeO_(2)/g-C_(3)N_(4)材料具有颗粒立方型CeO_(2)和棒状g-C_(3)N_(4)形貌结构,衍射晶面条纹清晰,具有CeO_(2)的晶型特征,存在Ce3d、O1s、C1s、N1s等特征峰。将制备的催化剂用于湿式催化氧化降解工业废水的实验,探究了催化剂样品的催化降解性能。实验结果表明,在反应温度为75℃、初始pH=5的条件下,投加催化剂样品0.7g,投加0.5mL质量分数为30%的H_(2)O_(2),对200mL、浓度为100 mg·L^(-1)的模拟苯酚溶液,其COD去除率最高达到65%以上。A series of CeO_(2)/g-C_(3)N_(4)catalysts were prepared by soft template method,the prepared catalysts were characterized by X-ray diffraction analysis(XRD),scanning electron microscopy(SEM),transmission electron microscopy analysis(TEM),and X-ray photoelectron analysis(XPS).The characterization results showed that the CeO_(2)/g-C_(3)N_(4)material had a granular cubic CeO_(2)and rod-like g-C_(3)N_(4)morphological structure,with clear diffraction crystal plane stripes and the crystallographic characteristics of CeO_(2),and the presence of Ce3d,O1s,C1s,and N1s characteristic peaks.The prepared catalysts were used in wet catalytic oxidative degradation of industrial wastewater experiments to investigate the catalytic degradation performance of the catalyst samples.The experiments results showed that the maximum COD removal rate of 200 mL of 100 mg/L simulated phenol solution could reach more than 65%with the injection of 0.7g of catalyst sample and 0.5mL of 30%mass fraction H_(2)O_(2)at the reaction temperature of 75℃and the initial pH value of 5.

关 键 词：CeO_(2) g-C_(3)N_(4) 湿式催化氧化 

分 类 号：TB383[一般工业技术—材料科学与工程]