Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture

A green composite adsorbent based on mesoporous silica-gel (SG) and deep eutectic solvent (DES) mixture of choline chloride-urea (ChCl:U) was synthesized as an alternative for carbon dioxide (CO2) adsorption. The composite adsorbent was prepared by wet impregnation technique with various ChCl:U (mol...

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Main Authors:	Zaitun Ghazali, Nur Hasyareeda Hassan, Mohd Ambar Yarmo, Teh, Lee Peng, Rizafizah Othaman
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13624/ http://journalarticle.ukm.my/13624/ http://journalarticle.ukm.my/13624/1/11%20Zaitun%20Ghazali.pdf

id	ukm-13624
recordtype	eprints
spelling	ukm-136242019-11-10T04:06:51Z http://journalarticle.ukm.my/13624/ Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture Zaitun Ghazali, Nur Hasyareeda Hassan, Mohd Ambar Yarmo, Teh, Lee Peng Rizafizah Othaman, A green composite adsorbent based on mesoporous silica-gel (SG) and deep eutectic solvent (DES) mixture of choline chloride-urea (ChCl:U) was synthesized as an alternative for carbon dioxide (CO2) adsorption. The composite adsorbent was prepared by wet impregnation technique with various ChCl:U (mole ratio 1:2) content in SG at 5-15% (w/w). Fourier transform infrared attenuated total reflectance (ATR-FTIR) results showed successful impregnation of ChCl:U into SG with the presence of C=O carbonyl amide group stretching, N-H scissoring bending, CH2 bending and C-N stretching peaks. Thermal degradation of the adsorbent started with urea at 130°C followed by ChCl at 300°C. Meanwhile, nitrogen physisorption demonstrated a decrease in specific surface areas of the sorbents with increasing ChCl:U weight percentage due to the blockage of micropores by ChCl:U. The optimum CO2 adsorption capacity of 22.3 mg/g was achieved by 10%ChCl:U/SG200, which was higher than the immobilised SG200, hence making it relevant to become a green and economical adsorbent for CO2 capture. Penerbit Universiti Kebangsaan Malaysia 2019-05 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13624/1/11%20Zaitun%20Ghazali.pdf Zaitun Ghazali, and Nur Hasyareeda Hassan, and Mohd Ambar Yarmo, and Teh, Lee Peng and Rizafizah Othaman, (2019) Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture. Sains Malaysiana, 48 (5). pp. 1025-1033. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil5_2019/KandunganJilid48Bil5_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	A green composite adsorbent based on mesoporous silica-gel (SG) and deep eutectic solvent (DES) mixture of choline chloride-urea (ChCl:U) was synthesized as an alternative for carbon dioxide (CO2) adsorption. The composite adsorbent was prepared by wet impregnation technique with various ChCl:U (mole ratio 1:2) content in SG at 5-15% (w/w). Fourier transform infrared attenuated total reflectance (ATR-FTIR) results showed successful impregnation of ChCl:U into SG with the presence of C=O carbonyl amide group stretching, N-H scissoring bending, CH2 bending and C-N stretching peaks. Thermal degradation of the adsorbent started with urea at 130°C followed by ChCl at 300°C. Meanwhile, nitrogen physisorption demonstrated a decrease in specific surface areas of the sorbents with increasing ChCl:U weight percentage due to the blockage of micropores by ChCl:U. The optimum CO2 adsorption capacity of 22.3 mg/g was achieved by 10%ChCl:U/SG200, which was higher than the immobilised SG200, hence making it relevant to become a green and economical adsorbent for CO2 capture.
format	Article
author	Zaitun Ghazali, Nur Hasyareeda Hassan, Mohd Ambar Yarmo, Teh, Lee Peng Rizafizah Othaman,
spellingShingle	Zaitun Ghazali, Nur Hasyareeda Hassan, Mohd Ambar Yarmo, Teh, Lee Peng Rizafizah Othaman, Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture
author_facet	Zaitun Ghazali, Nur Hasyareeda Hassan, Mohd Ambar Yarmo, Teh, Lee Peng Rizafizah Othaman,
author_sort	Zaitun Ghazali,
title	Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture
title_short	Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture
title_full	Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture
title_fullStr	Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture
title_full_unstemmed	Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture
title_sort	immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13624/ http://journalarticle.ukm.my/13624/ http://journalarticle.ukm.my/13624/1/11%20Zaitun%20Ghazali.pdf
first_indexed	2023-09-18T20:05:16Z
last_indexed	2023-09-18T20:05:16Z
_version_	1777407116138512384

Immobilization of choline chloride: urea onto mesoporous silica for carbon dioxide capture

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