Carbon Dioxide Capture by Dendrimer-Modified Silica Nanoparticles

Aminosilane- and dendrimer-modified silica nanoparticles were synthesized in the presence of (3-aminopropyl)trimethoxysilane and melamine-based dendrimer, respectively. The surface properties, morphology and carbon dioxide adsorption/desorption performances of the silica nanoparticles before and aft...

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Bibliographic Details
Published inAdsorption science & technology Vol. 29; no. 8; pp. 781 - 788
Main Authors Yu, Bing, Cong, Hailin, Zhao, Xiu Song, Chen, Zhaojing
Format Journal Article
LanguageEnglish
Published London, England SAGE Publications 01.08.2011
Subjects
Adsorption
Agglomeration
Carbon dioxide
Nanoparticles
Silicon dioxide
Surface area
Surface chemistry
Surface properties
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Summary:Aminosilane- and dendrimer-modified silica nanoparticles were synthesized in the presence of (3-aminopropyl)trimethoxysilane and melamine-based dendrimer, respectively. The surface properties, morphology and carbon dioxide adsorption/desorption performances of the silica nanoparticles before and after surface modification were studied and compared. Severe aggregation of the silica nanoparticles was largely minimized after surface modification. The carbon dioxide adsorption capacity of the dendrimer-modified silica nanoparticles was significantly enhanced in comparison with the unmodified and aminosilane-modified silica nanoparticles because of the large surface area and presence of functional groups exhibiting CO2 affinity in the former.
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ISSN:0263-6174
2048-4038
DOI:10.1260/0263-6174.29.8.781