Citation: LIU Hai-Di, LI Wei-Man, YUE Ren-Liang, CHEN Yun-Fa. Preparation of Active Carbon with more Micropores and Investigation on Its Xylene-Adsorbing Ability[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(9): 1787-1792. doi: 10.3969/j.issn.1001-4861.2013.00.231
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Active carbons with more micropores were prepared with wooden active carbon particles and KOH used as raw material and active agent respectively. The optimized weight ratio between wooden active carbon and KOH was obtained. The low-temperature N2 adsorption, SEM and XRD methods were employed to investigate the specific surface area, pore-structure, pore size distribution, morphology of particle surface and crystal structure of the as-made samples. The xylene-removal abilities of the samples were assessed with adsorbing experiments on gas streams containing 1,3-xylene (50 mg·L-1). It was revealed by the results that re-active operation with KOH upon the wooden active carbon obviously enlarge the 1,3-xylene adsorption capacity of the samples which might be resulted by the newly formed micro-pores.
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Keywords:
- active carbon;KOH;activation;xylene
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