新型多酸-有机胺-分子筛杂化光催化剂的制备、表征及其光催化性能研究  

Preparation, Characterization, and Photocatalytic Activity of the Novel Insoluble POM-APS-MCM-48(41) Hybrid Catalysts

作　　者：李莉[1] 郭伊荇[2] 胡长文[3] 

机构地区：[1]齐齐哈尔大学化学与化工学院,齐齐哈尔161006 [2]东北师范大学化学学院,长春130024 [3]北京理工大学理学院,北京100081

出　　处：《复旦学报（自然科学版）》2003年第3期409-412,417,共5页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金资助项目(20071007)

摘　　要：通过软化学手段制备了一系列新型耐水性多金属氧酸盐 有机胺 分子筛杂化光催化剂K5Ni(H2O)PW11O39 APS MCM 48(41)(APS=(C2H5O)3SiCH2CH2CH2NH2),通过XRD、UV/DRS、FT IR、ICP AES和元素分析等手段,对其组成和结构进行了表征,并考察了此类杂化光催化剂对可溶性染料罗丹明B(RB)的催化活性.实验结果表明,此类杂化光催化剂光催化活性高于直接光解和均相体系中K5[Ni(H2O)PW11O39](PW11Ni)的光催化活性,在90min内使RB的转化率超过了90%.并且,该催化剂的耐水性好,反应过程中不易溶脱,可重复使用.The polyoxometalate K5(PW11Ni) was supported on aminefunctionalized MCM48(41) via selfassembly method. XRD, UV/DRS, FTIR, ICPAES and elemental analysis were used to characterize the structure of the hybrid catalysts, and the photocatalytic activity of the hybrid catalysts was studied through photocatalytic degradation of dye Rhodamine B (RB). The experimental results indicated that the photocatalytic activity of the hybrid catalysts was higher than those of the direct photolysis and the pure PW11Ni in the homogeneous system. Moreover, this kind of catalyst was insoluble in water, and could be reused.

关 键 词：多金属氧酸盐 光催化 降解 罗丹明B 

分 类 号：O612.2[理学—无机化学]