Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies
Surface modification of Fe2O3 by adding BeO was synthesized and calcined at different temperatures of 200-600 °C. The adsorbents were characterized by using XRD, N2 adsorption-desorption isotherm prior to performing CO2 adsorption and desorption studies. The CO2 adsorption data were analyzed using a...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Trans Tech Publications
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/88198/1/ABSTRACT.pdf |
| _version_ | 1796981941712453632 |
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| author | Lahuri, Azizul Hakim Yarmo, Mohd Ambar Abu Tahari, Maratun Najiha Tengku Azmi, Tengku Sharifah Marliza Tengku Saharuddin, Tengku Shafazila Lee, Mark Wun Fui Dzakaria, Norliza |
| author_facet | Lahuri, Azizul Hakim Yarmo, Mohd Ambar Abu Tahari, Maratun Najiha Tengku Azmi, Tengku Sharifah Marliza Tengku Saharuddin, Tengku Shafazila Lee, Mark Wun Fui Dzakaria, Norliza |
| author_sort | Lahuri, Azizul Hakim |
| collection | UPM |
| description | Surface modification of Fe2O3 by adding BeO was synthesized and calcined at different temperatures of 200-600 °C. The adsorbents were characterized by using XRD, N2 adsorption-desorption isotherm prior to performing CO2 adsorption and desorption studies. The CO2 adsorption data were analyzed using adsorption isotherm models such as Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich. BeO/Fe2O3-300 that calcined at 300 °C showed the most efficient adsorbent with physisorption and chemisorption were measured at 5.85 and 45.88 mg/g respectively. The CO2 adsorption notably best fitted with Freundlich isotherm with R2 = 0.9897 and calculated adsorption capacity closest to experimental data. This implies the CO2 adsorption process was governed by multilayer adsorption on the heterogeneous surface of the adsorbent. The mean free energy of adsorption (E=3.536 kJ/mol) from Dubinin-Radushkevich and heat of adsorption (bT=3.219 kJ/mol) from the Temkin model support that the adsorption process is physical phenomena. |
| first_indexed | 2024-03-06T10:45:02Z |
| format | Article |
| id | upm.eprints-88198 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:45:02Z |
| publishDate | 2020 |
| publisher | Trans Tech Publications |
| record_format | dspace |
| spelling | upm.eprints-881982022-03-10T08:08:21Z http://psasir.upm.edu.my/id/eprint/88198/ Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies Lahuri, Azizul Hakim Yarmo, Mohd Ambar Abu Tahari, Maratun Najiha Tengku Azmi, Tengku Sharifah Marliza Tengku Saharuddin, Tengku Shafazila Lee, Mark Wun Fui Dzakaria, Norliza Surface modification of Fe2O3 by adding BeO was synthesized and calcined at different temperatures of 200-600 °C. The adsorbents were characterized by using XRD, N2 adsorption-desorption isotherm prior to performing CO2 adsorption and desorption studies. The CO2 adsorption data were analyzed using adsorption isotherm models such as Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich. BeO/Fe2O3-300 that calcined at 300 °C showed the most efficient adsorbent with physisorption and chemisorption were measured at 5.85 and 45.88 mg/g respectively. The CO2 adsorption notably best fitted with Freundlich isotherm with R2 = 0.9897 and calculated adsorption capacity closest to experimental data. This implies the CO2 adsorption process was governed by multilayer adsorption on the heterogeneous surface of the adsorbent. The mean free energy of adsorption (E=3.536 kJ/mol) from Dubinin-Radushkevich and heat of adsorption (bT=3.219 kJ/mol) from the Temkin model support that the adsorption process is physical phenomena. Trans Tech Publications 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88198/1/ABSTRACT.pdf Lahuri, Azizul Hakim and Yarmo, Mohd Ambar and Abu Tahari, Maratun Najiha and Tengku Azmi, Tengku Sharifah Marliza and Tengku Saharuddin, Tengku Shafazila and Lee, Mark Wun Fui and Dzakaria, Norliza (2020) Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies. Materials Science Forum, 1010. 361 - 366. ISSN 1662-9752 https://www.scientific.net/MSF.1010.361 10.4028/www.scientific.net/MSF.1010.361 |
| spellingShingle | Lahuri, Azizul Hakim Yarmo, Mohd Ambar Abu Tahari, Maratun Najiha Tengku Azmi, Tengku Sharifah Marliza Tengku Saharuddin, Tengku Shafazila Lee, Mark Wun Fui Dzakaria, Norliza Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies |
| title | Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies |
| title_full | Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies |
| title_fullStr | Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies |
| title_full_unstemmed | Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies |
| title_short | Comparative adsorption isotherm for Beryllium oxide/Iron (III) Oxide toward CO2 adsorption and desorption studies |
| title_sort | comparative adsorption isotherm for beryllium oxide iron iii oxide toward co2 adsorption and desorption studies |
| url | http://psasir.upm.edu.my/id/eprint/88198/1/ABSTRACT.pdf |
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