ZnO/g-C_(3)N_(4)复合物制备及其光催化降解罗丹明B性能  

Preparation of ZnO/g-C_(3)N_(4)composites and photocatalytic performances of degradating RhB

作　　者：徐泽忠 高雅 龚俊杰 谢劲松[2] 韩成良[2] XU Ze-zhong;GAO Ya;GONG Jun-jie;XIE Jin-song;HAN Cheng-liang(Analysis and Testing Center of Hefei University,Hefei 230601,China;Department of Chemical and Materials Engineering of Hefei University,Hefei 230601,China)

机构地区：[1]合肥学院分析测试中心,合肥230601 [2]合肥学院能源材料与化工学院,合肥230601

出　　处：《哈尔滨商业大学学报（自然科学版）》2023年第1期25-31,共7页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：2021年安徽高校自然科学研究重点项目(KJ2021A1018)。

摘　　要：以ZnO和C_(3)H_(6)N_(6)为原料,将两者按一定质量比混合得到前驱物,通过煅烧该前驱物可成功获得ZnO/g-C_(3)N_(4)复合物.采用XRD、SEM、UV-Vis和BET等方法对复合物的物相、形貌、组成、可见光吸收性能以及比表面积大小等进行表征.以罗丹明B(RhB)为目标污染物,在可见光激发下,探究了不同g-C_(3)N_(4)负载量的ZnO/g-C_(3)N_(4)复合物的光催化性能.结果表明,g-C_(3)N_(4)含量约为10%的复合物光催化降解RhB效果最好,30 min左右降解率接近100%,两种半导体复合能够实现光学性能上的优势互补.In this paper,ZnO and C_(3)H_(6)N_(6)were used as raw materials,and the precursors were obtained by mixing them in a certain mass ratio.ZnO/G-C_(3)N_(4)composites were successfully obtained by calcination of the above precursors.The phase,morphology,compositions,visible light absorption and specific surface area of the composites were analyzed and tested by XRD,SEM,UV-Vis and BET.Meanwhile,the photocatalytic properties of ZnO/g-C_(3)N_(4)composites with different g-C_(3)N_(4)addition were investigated under visible light irradiation with Rhodamine B as the target pollutant.Results showed that when the content of g-C_(3)N_(4)was about 10%,the photocatalytic degradation of RhB was the best,and the corresponding degradation rate was close to 100%in about 30min.The two kinds of semiconductorscould achieve complementary advantages in optical properties.

关 键 词：ZnO/g-C_(3)N_(4)复合物 光催化性能 电荷转移机制 有机染料 优势互补 

分 类 号：TQ630[化学工程—精细化工]