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Promoting the CO2 adsorption in the amine-containing SBA-15 by hydroxyl group by Ming Bo Yue; Lin Bing Sun; Yi Cao; Zhu Ji Wang; Ying Wang; Qing Yu; Jian Hua Zhu is a Materials Science article available to read on EtoBox.

What is Promoting the CO2 adsorption in the amine-containing SBA-15 by hydroxyl group about?

Novel CO 2 capturer with a high efficiency is fabricated through dispersing the amine mixture of tetraethylenepentamine (TEPA) and diethanolamine (DEA) or glycerol within the as-synthesized mesoporous silica SBA-15, and the resulting sample is characterized by low angle X-ray diffraction and N 2 adsorption to evaluate the distribution of the guest. The influence of hydroxyl group on the CO 2 adsorption capacity of the composite is investigated by using CO 2 -TPD and TG-MS techniques. The hydroxyl group of the P123 ((EO) 20 (PO) 70 (EO) 20 , template preserved in as-synthesized SBA-15) and the guest could promote the capture of CO 2 by the amine through changing the interaction mechanism. In addition, the presence of hydroxyl group promotes the formation of the intermediate between CO 2 and the amine with a lower thermal stability hence the CO 2 trapped by the composite is easier to be desorbed and thus the regeneration of adsorbent is facilitated. Therefore, using this mixed amine (TEPA and DEA) modified as-synthesized SBA-15 as CO 2 capturer not only saves the energy for removal of template, but also cut down the cost in the preparation and regeneration of CO 2 capturer, which is

Who reads Promoting the CO2 adsorption in the amine-containing SBA-15 by hydroxyl group?

Author

Ming Bo Yue; Lin Bing Sun; Yi Cao; Zhu Ji Wang; Ying Wang; Qing Yu; Jian Hua Zhu

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1387-1811)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)