新型中孔多金属氧酸盐复合材料光催化降解染料罗丹明B的研究  

Photocatalytic degradation of dye Rhodamine B in water by novel polyoxometalate composites

作　　者：李莉[1] 赵文琛[2] 周萍[1] 郭伊荇[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]黑龙江电力科学研究院,哈尔滨150000 [3]东北师范大学化学学院,长春130024

出　　处：《齐齐哈尔大学学报（自然科学版）》2003年第2期1-3,共3页Journal of Qiqihar University(Natural Science Edition)

基　　金：国家自然科学基金(20071007)

摘　　要：以胺修饰的中孔氧化硅为载体,通过自组装技术制备了一取代keggin结构的K_5[Ni(H_2O)PW_(11)O_(39)](以下简称PW_(11)Ni)复合材料,并研究了该复合材料对可溶性染料罗丹明B(简称RB)光催化的活性。实验结果表明,该复合材料光催化RB的活性高于RB的直接光解和PW_(11)Ni均相光催化。其中,复合材料PW_(11)Ni-APS-SiO_2可在180min内使RB的转化率达到91.6％。具有一定的开发价值。With amine-functionalized mesoporous silica materials as the support, The composites of polyoxometalate K5[Ni(H2O)PW11O39] (PW11Ni) were prepared via self-assembly method. The photocatalytic activities of the composites were studied through photocatalytic degradation of dye Rhodamine B (RB). The results show that the photocatalytic activity, of the composite PW11Ni-APS-SiO2 was higher than that of the composite PW11Ni-APS-SIO-7.Moreover, the composites can remain high catalytic activities after reuse of many times.

关 键 词：多金属氧酸盐 光催化 染料 罗丹明B 

分 类 号：O643.36[理学—物理化学]