eprintid: 5581
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/55/81
datestamp: 2023-11-09 16:17:19
lastmod: 2023-11-09 16:17:19
status_changed: 2023-11-09 16:03:14
type: article
metadata_visibility: show
creators_name: Abbas, T.
creators_name: Kallidanthiyil Chellappan, L.
creators_name: Mutalib, M.I.A.
creators_name: Cheun, K.Y.
creators_name: Nasir Shah, S.
creators_name: Nazir, S.
creators_name: Hassan, A.
creators_name: Abai, M.B.
creators_name: Khan, E.
title: Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream
ispublished: pub
keywords: Activated carbon; Adsorbents; Adsorption; Energy dispersive spectroscopy; Field emission microscopes; Flow of gases; Fourier transform infrared spectroscopy; Gases; Gravimetric analysis; Leaching; Mercury (metal); Scanning electron microscopy; Silica; Stability; Surface morphology; Thermogravimetric analysis; X ray spectroscopy, 1-Butyl-3-methylimidazolium chloride; Activated carbon supported; Adsorption efficiency; Brunauer-emmett-teller surface areas; Energy dispersive X ray spectroscopy; Field emission scanning electron microscopy; Supported ionic liquids; Thermal gravimetric analysis, Ionic liquids
note: cited By 17
abstract: 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.
date: 2015
publisher: American Chemical Society
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949032810&doi=10.1021%2facs.iecr.5b01738&partnerID=40&md5=a3882ace3082976fce6359d95a872a5c
id_number: 10.1021/acs.iecr.5b01738
full_text_status: none
publication: Industrial and Engineering Chemistry Research
volume: 54
number: 48
pagerange: 12114-12123
refereed: TRUE
issn: 08885885
citation:   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.  ISSN 08885885