Ag/g-C_3N_4光催化剂的制备及降解印染废水研究  

Preparation of photocatalyst Ag/g-C_3N_4 and degradation of printing and dyeing wastewater

作　　者：林清丽[1] 张克峰[2] LIN Qingli;ZHANG Kefeng(Department of Urban Rail Transit,Shandong Polytechnic Academy,Ji′nan 250104,China;School of Municipal and Environmental Engineering,Shandong Jianzhu University,Ji′nan 250101,China)

机构地区：[1]山东职业学院城市轨道交通系,山东济南250104 [2]山东建筑大学市政与环境工程学院,山东济南250101

出　　处：《印染助剂》2018年第8期1-4,共4页Textile Auxiliaries

摘　　要：通过加热AgNO_3和g-C_3N_4成功制备了Ag/g-C_3N_4复合材料,以X射线衍射仪(XRD)、扫描电子显微镜(SEM)、X射线能谱仪(XPS)、光致发光光谱仪(PL)等分析手段对所合成样品的结构和形貌等进行表征,结果表明:在Ag/g-C_3N_4复合材料中,Ag以原子形式存在,Ag的加入减少了g-C_3N_4的团聚现象。以亚甲基蓝为模拟印染废水,分析Ag/g-C_3N_4中Ag质量分数对催化性能的影响,结果表明:3%Ag/g-C_3N_4表现出最优的光催化性能。Ag/g-C3N4 composite photocatalysts were successfully prepared by heating AgNO3 and g-C3N4.The Ag/g-C3N4 composite were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),X-ray photoelectron spectroscopy(XPS),photoluminescence(PL)spectrum.The results indicated that in the Ag/g-C3N4 composites,Ag existed in the form of atoms,and the addition of Ag reduced the reunion of g-C3N4.Methylene blue was used to simulate printing and dyeing wastewater,and the effect of Ag mass fraction in Ag/g-C3N4 on catalytic performance was analyzed.The results showed that Ag/g-C3N4 with 3%mass fraction exhibited the best photocatalytic performance.

关 键 词：Ag/g-C3N4 团聚 复合 光催化降解 

分 类 号：TQ426[化学工程] X703[环境科学与工程—环境工程]