Different Modification Methods of Molecular Sieves Influence on CO2 Adsorption Performance

Autor:	Lu Lu Yu, Chang Zi Wu, Zhao Ping Zhong, Bao Sheng Jin, Min Song
Rok vydání:	2012
Předmět:	chemistry.chemical_compound Adsorption Chemical engineering MCM-41 Chemistry Covalent bond Triethoxysilane Ethyleneimine Amine gas treating General Medicine Molecular sieve Thermal analysis
Zdroj:	Applied Mechanics and Materials. 248:250-255
ISSN:	1662-7482
DOI:	10.4028/www.scientific.net/amm.248.250
Popis:	In this work, different types of amine-attached MCM-41 are prepared with different preparation methods. The poly (ethyleneimine) (PEI) and γ-(aminopropyl) triethoxysilane (APTS) are attached to the pore surface of MCM-41 silica. The comparison between impregnation of PEI and covalence attachment of APTS to the MCM-41 support are investigated. X-ray diffraction, Roman spectra, and Thermal analysis are used to characterize the obtained samples. The characterization results confirm that the amino groups are attached to the pore structure of MCM-41. The CO2 adsorption capacities of different amine attached MCM-41 silicas are investigated employing CO2 adsorption isotherm. MCM-41-APTS show a considerable CO2 uptake, suggesting their potential usage for the CO2 adsorbent.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ac90667a1432e7dfc5a96b23b72c9951 https://doi.org/10.4028/www.scientific.net/amm.248.250 Zobrazit plný text záznamu