@article{scholars5581,
            note = {cited By 17},
       publisher = {American Chemical Society},
         journal = {Industrial and Engineering Chemistry Research},
            year = {2015},
           title = {Stability and Performance of Physically Immobilized Ionic Liquids for Mercury Adsorption from a Gas Stream},
          volume = {54},
          number = {48},
             doi = {10.1021/acs.iecr.5b01738},
           pages = {12114--12123},
        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},
          author = {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.},
            issn = {08885885},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949032810&doi=10.1021\%2facs.iecr.5b01738&partnerID=40&md5=a3882ace3082976fce6359d95a872a5c},
        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. {\^A}{\copyright} 2015 American Chemical Society.}
}