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 K5(PW11Ni) was supported on aminefunctionalized MCM48(41) via selfassembly method. XRD, UV/DRS, FTIR, ICPAES 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 PW11Ni in the homogeneous system. Moreover, this kind of catalyst was insoluble in water, and could be reused.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
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)
关键词
多金属氧酸盐
光催化
降解
罗丹明B
polyoxometalate
photocatalysis
degradation
Rhodamine B
