relation: https://khub.utp.edu.my/scholars/6889/
title: CO2 adsorption study on primary, secondary and tertiary amine functionalized Si-MCM-41
creator: Ahmed, S.
creator: Ramli, A.
creator: Yusup, S.
description: The present study was conducted to investigate the CO2 adsorption efficiency of siliceous mesoporous material known Si-MCM-41 and impacts of amine loading, amine type, CO2 pressure and adsorption temperatures on CO2 adsorption. Si-MCM-41 was impregnated with monoethanolamine (MEA), diethanolamine (DEA) and triethanolamine (TEA). The adsorption study was investigated from very low pressure to 1 bar at three temperatures (i.e. 25, 50 and 75 °C) in pure CO2 atmosphere. Pristine Si-MCM-41 shows maximum CO2 adsorption capacity of 27.78 mg/g at 25 °C and 1 bar pressure. Monoethanolamine functionalized Si-MCM-41 with 10�50 wt. samples were investigated in order to optimize MEA loading for maximum CO2 adsorption. The 50 wt. MEA-Si-MCM-41 sample exhibited the highest CO2 adsorption capacity of 39.26 mg/g at 25 °C and 1 bar pressure as compared to other samples. 50 wt. DEA-Si-MCM-41 and 50 wt. TEA-Si-MCM-41 samples were also investigated for their affinity to capture CO2 at the same conditions. Results show that 50 wt. MEA-Si-MCM-41 still gives the highest CO2 adsorption capacity while adsorption capacity decreased in order of monoethanolamine, diethanolamine and triethanolamine-functionalized Si-MCM-41. CO2 adsorption capacity of all adsorbents decreases with increasing adsorption temperature above 25 °C. Fourier transform infrared spectroscopy (FTIR) analysis of CO2-saturated 50 wt. MEA, DEA and TEA-Si-MCM-41 samples shows the presence of transmission peaks associated to formation of carbamates. © 2016 Elsevier Ltd
publisher: Elsevier Ltd
date: 2016
type: Article
type: PeerReviewed
identifier:   Ahmed, S. and Ramli, A. and Yusup, S.  (2016) CO2 adsorption study on primary, secondary and tertiary amine functionalized Si-MCM-41.  International Journal of Greenhouse Gas Control, 51.  pp. 230-238.  ISSN 17505836     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84990191720&doi=10.1016%2fj.ijggc.2016.05.021&partnerID=40&md5=4ab7ff93573d9e78fd04c5c6608a3556
relation: 10.1016/j.ijggc.2016.05.021
identifier: 10.1016/j.ijggc.2016.05.021