Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption
Flake-like mesoporous magnesium oxide (MgO-TLT) was prepared using a bio-templating method with tea leaves (TLTs) as the template. MgO-TLT exhibited smaller crystallites (7.52 nm) than MgO prepared using the thermal decomposition method (22.52 nm). These smaller crystallites led to more structural d...
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my.utm.971742022-09-23T02:37:45Z http://eprints.utm.my/id/eprint/97174/ Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption Ruhaimi, Amirul Hafiiz Taib, Mohd. Rozainee Ab. Aziz, Muhammad Arif Q Science (General) TP Chemical technology Flake-like mesoporous magnesium oxide (MgO-TLT) was prepared using a bio-templating method with tea leaves (TLTs) as the template. MgO-TLT exhibited smaller crystallites (7.52 nm) than MgO prepared using the thermal decomposition method (22.52 nm). These smaller crystallites led to more structural defects in the adsorbent and a high basic site density; consequently, MgO-TLT exhibited a high CO2-uptake capacity of 3.17 mmol/g, which is 12-times higher than that of MgO-TD at 1 atm and 300 K, despite its low surface area. Furthermore, based on its low surface area and high uptake capacity, MgO-TLT has an uptake capacity per surface area that is more than 15-times higher than that of MgO-TD, which supports the hypothesis that MgO-TLT possesses more surface defect sites that promote the attachment of CO2. This study revealed that TLT is a promising template for use in the bio-templating syntheses of MgO adsorbents with high surface reactivities and enhanced CO2-uptake capacities. Penerbit UTM Press 2022-06 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/97174/1/MuhammadArifAb2022_FlakelikeTeaLeafTemplatedMagnesium.pdf Ruhaimi, Amirul Hafiiz and Taib, Mohd. Rozainee and Ab. Aziz, Muhammad Arif (2022) Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption. Malaysian Journal of Catalysis, 6 (1). pp. 5-11. ISSN 0128-2581 https://mjcat.utm.my/index.php/MalJCat/article/view/161 NA |
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Q Science (General) TP Chemical technology Ruhaimi, Amirul Hafiiz Taib, Mohd. Rozainee Ab. Aziz, Muhammad Arif Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption |
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Flake-like mesoporous magnesium oxide (MgO-TLT) was prepared using a bio-templating method with tea leaves (TLTs) as the template. MgO-TLT exhibited smaller crystallites (7.52 nm) than MgO prepared using the thermal decomposition method (22.52 nm). These smaller crystallites led to more structural defects in the adsorbent and a high basic site density; consequently, MgO-TLT exhibited a high CO2-uptake capacity of 3.17 mmol/g, which is 12-times higher than that of MgO-TD at 1 atm and 300 K, despite its low surface area. Furthermore, based on its low surface area and high uptake capacity, MgO-TLT has an uptake capacity per surface area that is more than 15-times higher than that of MgO-TD, which supports the hypothesis that MgO-TLT possesses more surface defect sites that promote the attachment of CO2. This study revealed that TLT is a promising template for use in the bio-templating syntheses of MgO adsorbents with high surface reactivities and enhanced CO2-uptake capacities. |
format |
Article |
author |
Ruhaimi, Amirul Hafiiz Taib, Mohd. Rozainee Ab. Aziz, Muhammad Arif |
author_facet |
Ruhaimi, Amirul Hafiiz Taib, Mohd. Rozainee Ab. Aziz, Muhammad Arif |
author_sort |
Ruhaimi, Amirul Hafiiz |
title |
Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption |
title_short |
Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption |
title_full |
Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption |
title_fullStr |
Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption |
title_full_unstemmed |
Flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption |
title_sort |
flake-like tea-leaf-templated magnesium oxide for carbon dioxide adsorption |
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Penerbit UTM Press |
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2022 |
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http://eprints.utm.my/id/eprint/97174/1/MuhammadArifAb2022_FlakelikeTeaLeafTemplatedMagnesium.pdf http://eprints.utm.my/id/eprint/97174/ https://mjcat.utm.my/index.php/MalJCat/article/view/161 |
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13.160551 |