一种铀酰配合物的合成及其光催化降解性能研究  

Synthesis and Photocatalytic Degradation Property of A Uranyl Complex

作　　者：梁玲玲 刘春叶[1] 成昭[1] LIANG Lingling;LIU Chunye;CHENG Zhao(College of Pharmacy,Xi′an Medical University,Xi′an 710021,China)

机构地区：[1]西安医学院药学院,陕西西安710021

出　　处：《化学与生物工程》2021年第2期32-35,共4页Chemistry & Bioengineering

基　　金：陕西省科技厅自然科学基金项目(2020JM-614,2019JQ-887);陕西省教育厅自然科学基金项目(20JK0902);西安医学院校级项目(2018XNRC03)。

摘　　要：以2-吡嗪羧酸为有机配体,在水热条件下与硝酸铀酰作用得到铀酰配合物(UO2)2(C5N2O2H3)2(μ2-OH)2,通过X-射线单晶衍射对其晶体结构进行了表征,比较了其对亚甲基蓝、靛蓝、罗丹明B、甲基红等4种有机染料的光催化降解作用,考察了该铀酰配合物的光催化降解条件,并探讨了其光催化机理。结果表明,在紫外光照射下,该铀酰配合物对亚甲基蓝、靛蓝、罗丹明B和甲基红等4种有机染料均有一定的光催化降解作用,其中对亚甲基蓝的降解效果最好。在铀酰配合物浓度为1.0 mg·mL^-1时,其对初始浓度为20 mg·L^-1的亚甲基蓝溶液降解120 min的降解率达到88.9%。We prepared a uranyl complex(UO2)2(C5N2O2H3)2(μ2-OH)2 by the reaction of 2-pyrazinecarboxylic acid with uranyl nitrate under hydrothermal conditions,characterized the crystal structure by X-ray single crystal diffraction,and compared the photocatalytic degradation effect against Methylene Blue,Indigo,Rhodamine B,and Methyl Red.Moreover,we investigated the photocatalytic degradation conditions of the uranyl complex,and discussed the photocatalytic mechanism.The results show that the uranyl complex has photocatalytic degradation effect against Methylene Blue,Indigo,Rhodamine B,and Methyl Red under UV irradiation,among which Methylene Blue is the best.When the concentration of the uranyl complex is 1.0 mg·mL^-1,the degradation rate of 20 mg·L^-1 Methylene Blue solution reaches 88.9%after 120 min.

关 键 词：2-吡嗪羧酸 铀酰配合物 晶体结构 光催化降解性能 

分 类 号：TQ09[化学工程] O614[理学—无机化学]