Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream
Solid-supported ionic liquids (ILs) have recently received attention as a potential effective technology for mercury removal from a gas stream. However, the leaching of ILs from the solid support has not been investigated in detail. In the present study, the stability of 1-butyl-3-methylimidazolium...
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American Chemical Society
2015
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my.utp.eprints.259322022-03-14T04:46:14Z Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream Abbas, T. Kallidanthiyil Chellappan, L. Mutalib, M.I.A. Cheun, K.Y. Nasir Shah, S. Nazir, S. Hassan, A. Abai, M.B. Khan, E. Solid-supported ionic liquids (ILs) have recently received attention as a potential effective technology for mercury removal from a gas stream. However, the leaching of ILs from the solid support has not been investigated in detail. In the present study, the stability of 1-butyl-3-methylimidazolium chloride (BmimCl) impregnated on silica and activated carbon was evaluated during elemental mercury removal (Hg0) from a gas stream. Silica- and carbon-supported BmimCl-based adsorbents were characterized before and after Hg0 adsorption by using Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller surface area analysis, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and thermal gravimetric analysis. The carbon-supported adsorbent showed better stability (no leaching of ILs) compared to the silica-supported adsorbent because of the availability of substantial micropores. The lower stability of silica-supported ILs is attributed to the presence of mesopores on silica support, which holds BmimCl ineffectively in a gas flow of a high concentration of Hg0 (15 ppm). The activated carbon-supported ILs, especially in a powdered form, showed higher adsorption efficiency of Hg0 from a gas stream. The adsorption capacity of powdered carbon-supported BmimCl was 21 mg/g in 68 h of continuous adsorption. © 2015 American Chemical Society. American Chemical Society 2015 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949032810&doi=10.1021%2facs.iecr.5b01738&partnerID=40&md5=a3882ace3082976fce6359d95a872a5c Abbas, T. and Kallidanthiyil Chellappan, L. and Mutalib, M.I.A. and Cheun, K.Y. and Nasir Shah, S. and Nazir, S. and Hassan, A. and Abai, M.B. and Khan, E. (2015) Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream. Industrial and Engineering Chemistry Research, 54 (48). pp. 12114-12123. http://eprints.utp.edu.my/25932/ |
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Solid-supported ionic liquids (ILs) have recently received attention as a potential effective technology for mercury removal from a gas stream. However, the leaching of ILs from the solid support has not been investigated in detail. In the present study, the stability of 1-butyl-3-methylimidazolium chloride (BmimCl) impregnated on silica and activated carbon was evaluated during elemental mercury removal (Hg0) from a gas stream. Silica- and carbon-supported BmimCl-based adsorbents were characterized before and after Hg0 adsorption by using Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller surface area analysis, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and thermal gravimetric analysis. The carbon-supported adsorbent showed better stability (no leaching of ILs) compared to the silica-supported adsorbent because of the availability of substantial micropores. The lower stability of silica-supported ILs is attributed to the presence of mesopores on silica support, which holds BmimCl ineffectively in a gas flow of a high concentration of Hg0 (15 ppm). The activated carbon-supported ILs, especially in a powdered form, showed higher adsorption efficiency of Hg0 from a gas stream. The adsorption capacity of powdered carbon-supported BmimCl was 21 mg/g in 68 h of continuous adsorption. © 2015 American Chemical Society. |
format |
Article |
author |
Abbas, T. Kallidanthiyil Chellappan, L. Mutalib, M.I.A. Cheun, K.Y. Nasir Shah, S. Nazir, S. Hassan, A. Abai, M.B. Khan, E. |
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Abbas, T. Kallidanthiyil Chellappan, L. Mutalib, M.I.A. Cheun, K.Y. Nasir Shah, S. Nazir, S. Hassan, A. Abai, M.B. Khan, E. Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream |
author_facet |
Abbas, T. Kallidanthiyil Chellappan, L. Mutalib, M.I.A. Cheun, K.Y. Nasir Shah, S. Nazir, S. Hassan, A. Abai, M.B. Khan, E. |
author_sort |
Abbas, T. |
title |
Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream |
title_short |
Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream |
title_full |
Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream |
title_fullStr |
Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream |
title_full_unstemmed |
Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream |
title_sort |
stability and performance of physically immobilized ionic liquids for mercury adsorption from a gas stream |
publisher |
American Chemical Society |
publishDate |
2015 |
url |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949032810&doi=10.1021%2facs.iecr.5b01738&partnerID=40&md5=a3882ace3082976fce6359d95a872a5c http://eprints.utp.edu.my/25932/ |
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1738656800049201152 |
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13.18916 |