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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2019
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| Online Access: | http://journalarticle.ukm.my/13624/1/11%20Zaitun%20Ghazali.pdf |
| _version_ | 1796931908592992256 |
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| author | Zaitun Ghazali, Nur Hasyareeda Hassan, Mohd Ambar Yarmo, Teh, Lee Peng Rizafizah Othaman, |
| author_facet | Zaitun Ghazali, Nur Hasyareeda Hassan, Mohd Ambar Yarmo, Teh, Lee Peng Rizafizah Othaman, |
| author_sort | Zaitun Ghazali, |
| collection | UKM |
| 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. |
| first_indexed | 2024-03-06T04:25:01Z |
| format | Article |
| id | ukm.eprints-13624 |
| institution | Universiti Kebangsaan Malaysia |
| language | English |
| last_indexed | 2024-03-06T04:25:01Z |
| publishDate | 2019 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | ukm.eprints-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 |
| 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 |
| title | 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_short | 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 |
| url | http://journalarticle.ukm.my/13624/1/11%20Zaitun%20Ghazali.pdf |
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