title: Ag-nanoparticle-loaded mesoporous silica: spontaneous formation of Ag nanoparticles and mesoporous silica SBA-15 by a one-pot strategy and their catalytic applications.
abstract: A facile one-step method was proposed for the successful synthesis of Ag-nanoparticle-loaded mesoporous silica SBA-15 composites, where silver ions and their corresponding reductant aniline were added in the traditional synthetic system of mesoporous silica SBA-15 containing P123 as the surfactant and TEOS as the silica source. Mesoporous silica SBA-15 and Ag nanoparticles were spontaneously formed with Ag nanoparticles embedded in channels and even implanted in frameworks of mesoporous silica SBA-15. A tentative formation process was then proposed according to experimental observations. Furthermore, catalytic activities of Ag-nanoparticle-loaded silica SBA-15 composites toward the reduction of 4-nitrophenol in the presence of NaBH(4) and the reduction of H(2)O(2) were also investigated.
authors.affiliation: School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, PR China.
authors.forename: Jie
authors.initials: J
authors.lastname: Han
authors.forename: Ping
authors.initials: P
authors.lastname: Fang
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Jiang
authors.forename: Liya
authors.initials: L
authors.lastname: Li
authors.forename: Rong
authors.initials: R
authors.lastname: Guo