Nanoengineering of amino - functionalized mesoporous silica nanospheres
as nanoreactors |
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| Authors: | Jinsuo Gao Shouchun Wu Feng Tan Hao Tian Jian Liu and GQ Max Lu |
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| Institution: | 1. Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Linggong Road 2, Dalian 116024, China;2. Department of Chemical and Process Engineering, and Advanced Technology Institute, University of Surrey, Guildford, Surrey GU2 7XH, UK;3. State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China;4. Vice-Chancellor''s Office, University of Surrey, Guildford, Surrey GU2 7XH, UK |
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| Abstract: | Selective functionalization of mesoporous silica nanospheres (MSNs) is crucial for nanoengineering of MSNs. Herein, we have combined “surface-protected etching strategy” and “cationic surfactant assisted etching strategy” to prepare functionalized MSNs with externally attached amino groups. The externally attached NH2 groups endow the catalysts with excellent catalytic performance for nitroaldol reaction between nitromethane and benzaldehyde. In addition, those NH2-MSNs can also be used to support gold nanoparticles, which display very good catalytic performance for reduction of 4-nitrophenol. It can be envisioned that the synthesis protocol developed in this work could also be extended to nanoengineered MSNs, which provides opportunities for nanoreactors design. |
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| Keywords: | Mesoporous silica nanospheres Nanoengineering Nanoreactors Catalysis |
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