Cu^(2+)掺杂纳米零价铁氧化降解罗丹明B性能研究  

Study on the performance of Cu^(2+) doped nano zero-valent iron for the oxidative degradation of Rhodamine B

作　　者：杨全菊 吴泽演 张烨 卢曼云 YANG Quan-ju;WU Ze-yan;ZHANG Ye;LU Man-yun(College of Pharmacy,Dali University,Dali 671000,China;Yunnan Province Department of Ecological environment in Dali ecological environment supervisor imjuh.Dali 671000,China)

机构地区：[1]大理大学药学院,云南大理671000 [2]云南省生态环境厅驻大理州生态环境监测站,云南大理671000

出　　处：《化学研究与应用》2024年第7期1632-1638,共7页Chemical Research and Application

基　　金：云南省地方本科高校基础研究联合专项资金面上项目(202101A0070189)资助;大理大学科研发展基金项目(FZ2023ZD016)资助。

摘　　要：研究Cu^(2+)的掺杂对纳米零价铁氧化降解罗丹明B水溶液的影响。采用液相还原法制备纳米零价铁颗粒,并通过XPS、XRD、SEM和HRTEM等对纳米零价铁颗粒进行表征,以罗丹明B水溶液为目标污染物,考察掺杂不同金属离子对纳米零价铁氧化降解活性的影响。实验结果表明:纳米零价铁掺杂Cu^(2+)后其氧化降解活性显著提高;在溶解氧条件下,对铁添加Cu^(2+)后进行4小时降解的研究,发现当添加量为3 mmol·L^(-1)时对5 mg·L^(-1)罗丹明B溶液的降解率达86%。结果表明适量Cu^(2+)的掺杂可提高纳米零价铁的氧化降解污染物活性。The effect of Cu^(2+)doping on the degradation of Rhodamine B aqueous solution by nano zerovalent iron(nZVI)was studied.nZVI particles were prepared by the liquid phase reduction method and characterized by XPS,XRD,SEM,and HRTEM.Rhodamine B aqueous solution was used as the target pollutant,and the influence of doping different metal ions on the oxidative degradation activity of nzVI was investigated.The experimental results showed that the oxidative degradation activity of nZVI was significantly enhanced after doping with Cu^(2+),Under dissolved oxygen conditions,after 4 h of degradation with the addition of Cu^(2+)to iron,a degradation rate of 86%for a 5 mg·L^(-1) Rhodamine B solution was achieved when the addition amount of Cu^(2+)was 3 mmol·L^(-1).The results indicate that appropriate Cu^(2+)doping can enhance the oxidative degradation activity of nZVI for pollutants.

关 键 词：纳米零价铁 Cu^(2+)掺杂 氧化降解 罗丹明B水溶液 

分 类 号：O614.8[理学—无机化学]