成果简介:Hierarchically porous AlPO4 monoliths with well-defined macropores are prepared via sol–gel process accompanied by phase separation. Appropriate amounts of precursor, poly(ethylene oxide) and propylene oxide allow the formation of mesoporous structure with uniform macropore size distribution in the gel. The crystalline phase of tridymite forms after the heat-treatment at 1000 oC in air, while the meso- and macroporous structure is preserved, maintaining a BET surface area of 120.8 m2/g. The resultant crystalline AlPO4 monolith is used as the host to immobilize silver nanoparticles (Ag NPs) by immersing it in silver colloid under an ambient condition. The result shows that Ag NPs have been homogeneously embedded on the surface of skeletons without spoiling the appearance and macroporous structure of initial AlPO4 monolith. Ag NPs embedded in monolithic AlPO4 is promising for wide applications such as catalysis and separation.
论文引用方式:Xiaobo Cai, Wenjun Zhu, Hui Yang, Chenyang Xu, Kazuki Nakanishi, Kazuyoshi Kanamori and Xingzhong Guo. Preparation of silver nanoparticles embedded hierarchically porous AlPO4 monoliths. New Journal of Chemistry, 2015,39, 6238-6243.
论文链接:http://pubs.rsc.org/en/content/articlehtml/2015/nj/c5nj00490j