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Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture

There is an increasing demand for the development of highly efficient CO2 capture techniques to address global warming and climate change. Although adsorption is an effective approach towards capturing CO2, conventional adsorbents possess limited adsorption capacities and exhibit low adsorption rate...

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Main Authors: Ruhaimi, Amirul Hafiiz, Ab. Aziz, Muhammad Arif
Format: Article
Language:English
Published: Springer Science and Business Media Deutschland GmbH 2022
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/100960/1/MuhammadArif2022_FabricationofMesoporousCeO2MgOAdsorbentwithDiverseActiveSites.pdf
http://eprints.utm.my/id/eprint/100960/
http://dx.doi.org/10.1007/s00339-021-05182-5
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spelling my.utm.1009602023-05-18T05:00:07Z http://eprints.utm.my/id/eprint/100960/ Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture Ruhaimi, Amirul Hafiiz Ab. Aziz, Muhammad Arif TP Chemical technology There is an increasing demand for the development of highly efficient CO2 capture techniques to address global warming and climate change. Although adsorption is an effective approach towards capturing CO2, conventional adsorbents possess limited adsorption capacities and exhibit low adsorption rates. In this study, we successfully fabricated mesoporous composite CeO2–MgO adsorbents (CM-BT) with diverse active sites via the eggshell membrane (ESM)-templating method, for CO2 capture applications. The utilisation of ESM-templating produced a CM-BT with better structural and textural properties. The CM-BT possessed a higher surface area (42 m2/g) and pore volume (0.185 cm3/g) than those of the composite prepared using a thermal decomposition method (CM-TD). In addition, the CM-BT possessed more diverse base sites of various strong base site strengths (O2-) and abundant hydroxyl groups, and metal–oxygen pair base sites than CM-TD. The diverse strengths of the strong base sites were correlated with the coordination of O2- and the electronegativity of metal ions. With these excellent physicochemical properties, the CM-BT composite exhibited a high CO2 uptake capacity of 5.7 mmol/g under CO2 flow and ambient conditions, which is 2.5 times higher than that of CM-TD. Springer Science and Business Media Deutschland GmbH 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/100960/1/MuhammadArif2022_FabricationofMesoporousCeO2MgOAdsorbentwithDiverseActiveSites.pdf Ruhaimi, Amirul Hafiiz and Ab. Aziz, Muhammad Arif (2022) Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture. Applied Physics A: Materials Science and Processing, 128 (1). pp. 1-13. ISSN 0947-8396 http://dx.doi.org/10.1007/s00339-021-05182-5 DOI : 10.1007/s00339-021-05182-5
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Ruhaimi, Amirul Hafiiz
Ab. Aziz, Muhammad Arif
Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture
description There is an increasing demand for the development of highly efficient CO2 capture techniques to address global warming and climate change. Although adsorption is an effective approach towards capturing CO2, conventional adsorbents possess limited adsorption capacities and exhibit low adsorption rates. In this study, we successfully fabricated mesoporous composite CeO2–MgO adsorbents (CM-BT) with diverse active sites via the eggshell membrane (ESM)-templating method, for CO2 capture applications. The utilisation of ESM-templating produced a CM-BT with better structural and textural properties. The CM-BT possessed a higher surface area (42 m2/g) and pore volume (0.185 cm3/g) than those of the composite prepared using a thermal decomposition method (CM-TD). In addition, the CM-BT possessed more diverse base sites of various strong base site strengths (O2-) and abundant hydroxyl groups, and metal–oxygen pair base sites than CM-TD. The diverse strengths of the strong base sites were correlated with the coordination of O2- and the electronegativity of metal ions. With these excellent physicochemical properties, the CM-BT composite exhibited a high CO2 uptake capacity of 5.7 mmol/g under CO2 flow and ambient conditions, which is 2.5 times higher than that of CM-TD.
format Article
author Ruhaimi, Amirul Hafiiz
Ab. Aziz, Muhammad Arif
author_facet Ruhaimi, Amirul Hafiiz
Ab. Aziz, Muhammad Arif
author_sort Ruhaimi, Amirul Hafiiz
title Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture
title_short Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture
title_full Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture
title_fullStr Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture
title_full_unstemmed Fabrication of mesoporous CeO2–MgO adsorbent with diverse active sites via eggshell membrane-templating for CO2 capture
title_sort fabrication of mesoporous ceo2–mgo adsorbent with diverse active sites via eggshell membrane-templating for co2 capture
publisher Springer Science and Business Media Deutschland GmbH
publishDate 2022
url http://eprints.utm.my/id/eprint/100960/1/MuhammadArif2022_FabricationofMesoporousCeO2MgOAdsorbentwithDiverseActiveSites.pdf
http://eprints.utm.my/id/eprint/100960/
http://dx.doi.org/10.1007/s00339-021-05182-5
_version_ 1768006589743104000
score 13.211869

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