摘要
采用溶胶-凝胶法制备了孔径为3.2nm的SiO_2载体,通过自组装技术合成了纳米级SiO_2负载型多金属氧酸盐复合材料PW_(11)Ni-APS-SiO_2。经N_2吸附测定、UV/DRS、FT-IR、ICP-AES检测,母体PW_(11)Ni与被胺修饰的载体之间不是单纯的吸附,而是生成了新的化学键,很好的解决了非均相反应中,负载型多金属氧酸盐易脱落的问题。
The SiO2 support was prepared via sol-gel method, whoes average pore diameter was 3.2nm. The polyoxometalate K5[Ni(H2O)PW11O39] (PW11Ni) was supported on amine-functionalized mesoporous silica material via self-assembly method. UV/DRS, FT-IR, ICP-AES were used to characterize the structure and composition of the composite. The experimental results indicated that the composite retained the Keggin structure.
出处
《齐齐哈尔大学学报（自然科学版）》
2003年第1期1-3,10,共4页
Journal of Qiqihar University(Natural Science Edition)
基金
国家自然科学基金(20071007)
