无机-有机杂化钴钒酸盐Co_4(vIM)_(14)[V_4O_(12)]_2·6H_2O的合成、结构及CEES氧化催化性能  

Synthesis and Catalytic Property of Inorganic-Organic Hybrid Cobalt Vanadate Co_4(vIM)_(14)[V_4O_(12)]_2·6H_2O in Oxidation of CEES

作　　者：李季坤[1,2] 吴仁涛 巩家新[1] 胡长文 LI Ji-kun;WU Ren-tao;GONG Jia-xin;HU Chang-wen(School of Chemistry and Chemical Engineering,Taishan University,Tai’an 271021,China;Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]泰山学院化学化工学院,山东泰安271000 [2]北京理工大学化学与化工学院,北京100081

出　　处：《聊城大学学报（自然科学版）》2019年第3期75-80,共6页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目(21871026);山东省自然科学基金项目(ZR2017LB002);横向课题(2018HX207)资助

摘　　要：以NH_4VO_3为钒源,1-乙烯基咪唑(vIM)为配体,与CoCl_2·6H_2O在水热条件下反应合成了新型无机-有机杂化的钴钒酸盐Co_4(vIM)_(14)[V_4O_(12)]_2·6H_2O (1),利用X-射线单晶衍射(SXRD)、X-射线粉末衍射(PXRD)、红外光谱(FT-IR)以及元素分析(EA)等表征了其结构.我们进一步考察了化合物1在选择性氧化降解化学战剂芥子气类似物2-氯乙基乙基硫醚(CEES)反应中的催化性能.实验结果表明,在优化条件下,以H_2O_2为氧化剂,化合物1对CEES的选择性氧化表现出良好的催化活性,而化合物1作为非均相催化剂经3轮催化循环后活性及选择性都没有明显降低.A new inorganic-organic hybrid cobalt vanadate Co4(vIM)14[V4O12]2·6H2O(1) was synthesized using NH4VO3 as vanadium source and 1-vinylimidazole (1-vIM) as ligand to react with CoCl2·6H2O under hydrothermal conditions.The structure of 1 was further characterized by single-crystal X-ray diffraction (SXRD), powder X-ray diffraction (PXRD) analyses, FT-IR spectroscopy and element analyses (EA), etc.We also selected the oxidative degradation of a mustard gas analogue 2-chloroethyl ethyl sulfide (CEES) to evaluate the catalytic activities of compound 1.The experimental results showed that compound 1 exhibited good catalytic activity for selective oxidation of CEES using H2O2 as oxidant under optimized conditions.As a heterogeneous catalyst, 1 can be used at least 3 times without losing its activity.

关 键 词：无机-有机杂化 钴钒酸盐 晶体结构 硫醚催化氧化 

分 类 号：O612[理学—无机化学]