一步原位锻烧法制备Ag/CeO_(2)/g-C_(3)N_(4)复合光催化剂及其性能  

One-Step In-Situ Calcination Preparation and Properties of Ag/CeO_(2)/g-C_(3)N_(4) Composite Photocatalysts

作　　者：程余磊 孙明轩[1] 孙善富 孟祥龙 彭海洋 Cheng Yulei;Sun Mingxuan;Sun Shanfu;Meng Xianglong;Peng Haiyang(School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《微纳电子技术》2021年第6期484-488,557,共6页Micronanoelectronic Technology

基　　金：上海市教育委员会科研创新资助项目(15ZZ092);2020年上海市市级大学生创新训练资助项目(cs2005004);2020年松江区科委科协资助科普项目(SJKPH2006)。

摘　　要：以三聚氰胺、硝酸铈和硝酸银为原料,通过一步原位固相煅烧法制备了Ag/CeO_(2)/g-C_(3)N_(4)复合光催化剂材料。采用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)、透射电子显微镜(TEM)和紫外可见漫反射吸收谱(UV-Vis DRS)等对制备出的样品进行了表征测试。以亚甲基蓝(MB)为模拟污染物,对样品的可见光催化性能进行了测试。结果表明,Ag/CeO_(2)/g-C_(3)N_(4)的光催化反应速率常数是纯g-C_(3)N_(4)的3.82倍,证明了Ag和CeO_(2)共掺杂的协同效应有效提高了g-C_(3)N_(4)的光催化性能。With melamine,cerium nitrate and silver nitrate as raw materials,Ag/CeO_(2)/g-C_(3)N_(4) hybrid photocatalysts were prepared through the one-step in-situ solid-phase calcination method.The obtained samples were characterized and tested by X-ray diffractometer(XRD),X-ray photoelectron spectroscope(XPS),scanning electron microscope(SEM),transmission electron microscope(TEM),UV-vis diffuse reflection absorption spectrum(UV-vis DRS),etc.The visible photocatalytic performance of the sample was tested with methylene blue(MB)as the simulated pollutant.The results indicate that the photocatalytic reaction rate constant of Ag/CeO_(2)/g-C_(3)N_(4) is 3.82 times higher than that of pure g-C_(3)N_(4),proving that the synergetic interaction of Ag and CeO_(2) co-doping can effectively improve the photocatalytic performance of g-C_(3)N_(4).

关 键 词：Ag/CeO_(2)/g-C3N4 复合材料 光催化剂 固相煅烧法 协同效应 

分 类 号：TB33[一般工业技术—材料科学与工程]