Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media

Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media

Carbon dioxide (CO2) is considered to be the main greenhouse gas contributing to global warming and climate change. Therefore, the present paper investigates the CO2-capture performance of synthesized calcium hydroxides, Ca(OH)2 sorbent at different temperatures which are 350, 450, 550 and 650ºC....

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Main Authors: Mohd Daud, Farah Diana, Sreekantan, Srimala, Mohamed, Abdul Rahman
Format: Article
Language:English
Published: Trans Tech Publications Ltd. 2014
Subjects:
TA170 Environmental engineering
TA401 Materials of engineering and construction
Online Access:http://irep.iium.edu.my/46411/
http://irep.iium.edu.my/46411/
http://irep.iium.edu.my/46411/
http://irep.iium.edu.my/46411/1/Farah_Diana_Advanced_Materials_Research__Carbon_Dioxide_Capture_At_Various_Temperatures_Using_Ca%28OH%292_Nanorod_Fabricated_By_Sol-Gel_Route_In_Ethanol_Media.pdf
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spelling iium-464112018-06-19T04:31:46Z http://irep.iium.edu.my/46411/ Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media Mohd Daud, Farah Diana Sreekantan, Srimala Mohamed, Abdul Rahman TA170 Environmental engineering TA401 Materials of engineering and construction Carbon dioxide (CO2) is considered to be the main greenhouse gas contributing to global warming and climate change. Therefore, the present paper investigates the CO2-capture performance of synthesized calcium hydroxides, Ca(OH)2 sorbent at different temperatures which are 350, 450, 550 and 650ºC. The CO2 adsorption of the materials synthesized was studied in a thermo-gravimetric analyzer (TGA). The CO2 adsorption temperature strongly influenced the capture performance of the absorbent. The Ca(OH)2 sorbent are prepared by hydrolysis of calcium alkoxides, NaOH as precipitating agent and mixed solvent of ethanol with deionized (DI) water as medium at 35ºC. Xray diffraction (XRD) result showed 40 nm crystallite size of Ca(OH)2 hexagonal crystal structures. The Ca(OH)2 particle size and morphological properties before and after CO2 adsorption are studied by Field Emission Scanning Electron Microscopy (FESEM). The FESEM image indeed showed the rod like shape of Ca(OH)2 structures with rod length increased from 765 to 893 nm while the diameter is between 140 to 160 nm. When Ca(OH)2 sorbent adsorbed CO2, the structures are rigid interconnected each others like a lump shaped. The prepared Ca(OH)2 sorbent possesses a great potential to capture CO2 when increased temperature. Nevertheless, at intermediate temperatures (350-450ºC), Ca(OH)2 sorbent still demonstrates a higher CO2 capture capacity than other intermediate temperature adsorbents such as layered double hydroxides (LDHs), lithium zirconates (LiZrO3) and hydrotalcites. Trans Tech Publications Ltd. 2014-08 Article PeerReviewed application/pdf en http://irep.iium.edu.my/46411/1/Farah_Diana_Advanced_Materials_Research__Carbon_Dioxide_Capture_At_Various_Temperatures_Using_Ca%28OH%292_Nanorod_Fabricated_By_Sol-Gel_Route_In_Ethanol_Media.pdf Mohd Daud, Farah Diana and Sreekantan, Srimala and Mohamed, Abdul Rahman (2014) Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media. Advanced Materials Research, 1024. pp. 35-38. ISSN 1662-8985 http://www.scientific.net/AMR.1024.35 10.4028/www.scientific.net/AMR.1024.35
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic TA170 Environmental engineering
TA401 Materials of engineering and construction
spellingShingle TA170 Environmental engineering
TA401 Materials of engineering and construction
Mohd Daud, Farah Diana
Sreekantan, Srimala
Mohamed, Abdul Rahman
Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media
description Carbon dioxide (CO2) is considered to be the main greenhouse gas contributing to global warming and climate change. Therefore, the present paper investigates the CO2-capture performance of synthesized calcium hydroxides, Ca(OH)2 sorbent at different temperatures which are 350, 450, 550 and 650ºC. The CO2 adsorption of the materials synthesized was studied in a thermo-gravimetric analyzer (TGA). The CO2 adsorption temperature strongly influenced the capture performance of the absorbent. The Ca(OH)2 sorbent are prepared by hydrolysis of calcium alkoxides, NaOH as precipitating agent and mixed solvent of ethanol with deionized (DI) water as medium at 35ºC. Xray diffraction (XRD) result showed 40 nm crystallite size of Ca(OH)2 hexagonal crystal structures. The Ca(OH)2 particle size and morphological properties before and after CO2 adsorption are studied by Field Emission Scanning Electron Microscopy (FESEM). The FESEM image indeed showed the rod like shape of Ca(OH)2 structures with rod length increased from 765 to 893 nm while the diameter is between 140 to 160 nm. When Ca(OH)2 sorbent adsorbed CO2, the structures are rigid interconnected each others like a lump shaped. The prepared Ca(OH)2 sorbent possesses a great potential to capture CO2 when increased temperature. Nevertheless, at intermediate temperatures (350-450ºC), Ca(OH)2 sorbent still demonstrates a higher CO2 capture capacity than other intermediate temperature adsorbents such as layered double hydroxides (LDHs), lithium zirconates (LiZrO3) and hydrotalcites.
format Article
author Mohd Daud, Farah Diana
Sreekantan, Srimala
Mohamed, Abdul Rahman
author_facet Mohd Daud, Farah Diana
Sreekantan, Srimala
Mohamed, Abdul Rahman
author_sort Mohd Daud, Farah Diana
title Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media
title_short Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media
title_full Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media
title_fullStr Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media
title_full_unstemmed Carbon dioxide capture at various temperatures using Ca(OH)2 sorbent fabricated by sol-gel route in ethanol media
title_sort carbon dioxide capture at various temperatures using ca(oh)2 sorbent fabricated by sol-gel route in ethanol media
publisher Trans Tech Publications Ltd.
publishDate 2014
url http://irep.iium.edu.my/46411/
http://irep.iium.edu.my/46411/
http://irep.iium.edu.my/46411/
http://irep.iium.edu.my/46411/1/Farah_Diana_Advanced_Materials_Research__Carbon_Dioxide_Capture_At_Various_Temperatures_Using_Ca%28OH%292_Nanorod_Fabricated_By_Sol-Gel_Route_In_Ethanol_Media.pdf
first_indexed 2023-09-18T21:06:04Z
last_indexed 2023-09-18T21:06:04Z
_version_ 1777410941604855808

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