| Literature DB >> 29644594 |
Yuanyuan Sun1, Chang Liu1,2, Yifan Zan1,2, Gai Miao1, Hao Wang1, Lingzhao Kong3.
Abstract
Porous carbon adsorbents were prepared from microalgae (Chlorococcum sp.) via directly hydrothermal carbonization coupled with KOH or NH3 activation for Cr(VI) adsorption. KOH-activated porous carbons exhibit high Cr(VI) adsorption capacities than those obtained via NH3 modification (370.37 > 95.70 mg/g). The superior Cr(VI) adsorption capacity is due to high surface areas (1784 m2/g) and pore volumes of porous carbon with mesoporous and macroporous structures. The Cr(VI) adsorption result was well fitted to the Langmuir model, showing that the removal of Cr(VI) was attributed to the monolayer adsorption of activity site on carbon surface.Entities:
Keywords: Adsorption; Cr(VI); Hydrothermal carbonization; Microalgae (Chlorococcum sp.); Porous carbons
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Year: 2018 PMID： 29644594 DOI： 10.1007/s12010-018-2752-0
Source DB: PubMed Journal: Appl Biochem Biotechnol ISSN： 0273-2289 Impact factor: 2.926