PVP-PdCl_2-SnCl_4/MontK10-PEG400的制备及催化芳香卤化物水相脱卤研究  

Preparation of PVP-PdCl_2-SnCl_4/MontK10-PEG400 and Study on Its Catalyzing Dehalogenation of Aromatic Halides in Aqueous System

作　　者：董玉环[1] 孟庆朝[1] 周长山[1] 

机构地区：[1]唐山师范学院化学系,河北唐山063000

出　　处：《分子催化》2003年第2期124-128,共5页Journal of Molecular Catalysis(China)

基　　金：河北省教育厅资助课题(2000254).

摘　　要：用PVP(聚乙烯吡咯烷酮)络合双金属Pd2+,Sn4+后,再负载于PEG400(平均式量为400的聚乙二醇)官能化的蒙脱土上,制成双金属催化剂PVP-PdCl2-SnCl4/MontK10-PEG400,用于催化不溶于水的芳香卤化物水相脱卤,对芳香氯化物呈现出高的脱氯活性和选择性,并有良好的重复使用性,通过IR,TEM,XPS等手段测定对催化剂各组分在催化脱卤中的作用进行了探讨.A novel bimetal and bisupporter catalyst PVPPdCl2SnCl4/MontK10\|PEG400 is prepared through supporting the PVP(polyvinylpyrrolidone)\|archored Pd\+\{2+\} and Sn\+\{4+\} on MontK10 functionalized by PEG400(polyethylene glycol with average molecular weight 400). It has shown high activity, selectivity and excellent reusability for catalyzing dehalogenation of insolvable aromatic halides in aqueous system. Based on IR, TEM and XPS characterization, the effects of catalyst composition on dehalogenation performances are discussed.

关 键 词：水相脱卤 芳香卤化物 官能化蒙脱土 聚乙烯吡咯烷酮 废水处理 催化剂PVP-PdCl2-SnCl4/MontK10-PEG400 PVP-PdCl2-SnCl4/MontK10-PEG400 

分 类 号：X703.1[环境科学与工程—环境工程] O643.36[理学—物理化学]