Citation
Tengku Azmi, Tengku Sharifah Marliza and Yarmo, Mohd Ambar and Lahuri, Azizul Hakim and Abu Tahari, Maratun Najiha and Mohamed Hisham, Mohamed Wahab and Yap, Taufiq Yun Hin
(2016)
CO2 capture on NiO supported imidazolium-based ionic liquid.
In: 1st UKM-ISESCO-COMSATS International Workshop on Nanotechnology for Young Scientists (IWYS2016), 28-30 Nov. 2016, Hotel Bangi-Putrajaya, Bangi, Selangor. (pp. 1-8).
Abstract
CO2 capture on NiO supported imidazolium-based ionic liquid, NiO/[emim][HSO4]/SiO2 as an adsorbent was investigated using gas adsorption analyzer and physicochemical properties of the adsorbent were characterized using X-ray powder diffraction (XRD), surface area analyzer (BET method) and temperature-program-desorption analysis (TPD). Immobilization of ionic liquid on silica, [emim][HSO4]/SiO2 slightly decreased the surface area compared to bare silica from 266 to 256 m2/g due to the pore blocking by the confinement of IL in SiO2 pore. Interestingly, introduction of NiO on supported ionic liquid, NiO/[emim][HSO4]/SiO2 was increased the surface area as well as pore volume from 256 to 356 m2/g and 0.14 to 0.38 cm3/g, respectively. The enhancement of surface area and pore volume was significantly increased the CO2 adsorption performance with capacity of 48.8 mg CO2/g adsorbent compared to [emim][HSO4]/SiO2 27.3 mg CO2/g adsorbent).
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