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Synthesis of Janus Mesoporous Silica Nanostructures with Organic–Inorganic Hybrid Components through a Sprout‐Like Growth Method
Author(s) -
Wang Xue,
Guan Buyuan,
He Yapeng,
Zhang Ye,
Cao Yu,
Liu Yunling,
Qiao ZhenAn,
Huo Qisheng
Publication year - 2015
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201500128
Subject(s) - janus , mesoporous material , mesoporous organosilica , nanostructure , materials science , mesoporous silica , nanotechnology , catalysis , nanoparticle , chemical engineering , morphology (biology) , organic chemistry , chemistry , biology , engineering , genetics
In this paper, we have established a simple and generalizable sprout‐like growth method for the facile synthesis of Janus mesoporous silica nanostructures with organic–inorganic hybrid components by using periodic mesoporous organosilica (PMO) nanoparticles as seeds with mesoporous SiO 2 as branches growing on the PMO surface. The morphology of Janus nanostructures with different lengths and numbers of SiO 2 branches can be easily controlled by varying the tetraethoxysilane concentration in the synthesis system. The Janus nanostructures are also easily modified with different SO 3 H and NH 2 groups on the SiO 2 branches and PMO cores, respectively, and exhibit excellent catalytic performance in the deacetalization–Henry cascade reaction.