纳米球形Ag_(2)CO3/Ag_(3)PO_(4)核壳材料的制备及其光催化性能  

Synthesis of Nano Core-shell Ag_(2)CO3/Ag_(3)PO_(4)and Its Photocatalytic Activit

作　　者：王雪静[1] 王新生[2] WANG XueJing;WANG Xinsheng(Chemistry and Chemical Engineer School,Henan Institute of Science and Technology,Xinxiang 453003,China;Xinke College of Henan Institute of Science and Technology,Xinxiang 453003,China)

机构地区：[1]河南科技学院化学化工学院,河南新乡453003 [2]河南科技学院新科学院,河南新乡453003

出　　处：《河南科技学院学报（自然科学版）》2021年第1期46-51,共6页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：河南省科技计划项目(202102310595)。

摘　　要：在离子液体辅助下,采用两步水热法制备纳米球形Ag_(2)CO3/Ag_(3)PO_(4)核壳材料.用XRD,SEM,TEM,EDS和UV-Vis spectrum对产物进行了表征,通过可见光催化降解甲基橙试验,对产物的光催化活性进行了考察.结果表明合成产物为纳米级球形Ag_(2)CO3/Ag_(3)PO_(4)核壳结构,颗粒大小为50~200 nm.Ag_(2)CO3/Ag_(3)PO_(4)在可见光作用下对甲基橙溶液表现出很高的可见光催化活性,Ag2CO3负载量(占Ag3PO4的摩尔分数)为30%时,Ag_(2)CO3/Ag_(3)PO_(4)的光催化活性最高,对甲基橙的降解率高达95.7%,且循环使用5次后仍然保持较高的催化活性,对甲基橙的降解率还有88.2%.Nano core-shell Ag_(2)CO3/Ag_(3)PO_(4)was prepared by two-stage hydrothermal method with ionic liquid assisted.The samples were characterized by XRD,SEM,TEM,EDS and UV-Vis spectrum.The results shows that the sample is nano core-shell Ag_(2)CO3/Ag_(3)PO_(4),with size of 50-200nm.It’s photocatalytic activity is investigated by photocatalytic degradation of methyl orange.The sample exhibits the highest photocatalytic activity when the content of Ag2CO3 is 30%.The degradation rate of methyl orange still maintain 88.2%after five times recycling.

关 键 词：纳米 Ag_(2)CO3/Ag_(3)PO_(4) 核壳材料 光催化活性 

分 类 号：TQ174.75[化学工程—陶瓷工业]