Applied Biochemistry and Biotechnology

, Volume 186, Issue 2, pp 414–424 | Cite as

Hydrothermal Carbonization of Microalgae (Chlorococcum sp.) for Porous Carbons With High Cr(VI) Adsorption Performance

  • Yuanyuan Sun
  • Chang Liu
  • Yifan Zan
  • Gai Miao
  • Hao Wang
  • Lingzhao Kong


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.


Hydrothermal carbonization Porous carbons Microalgae (Chlorococcum sp.) Cr(VI) Adsorption 



Authors acknowledge financial supports provided by the National Natural Science Foundation of China (21406255), the Shanghai Science and Technology Committee (16dz1207200), and the Youth Innovation Promotion Association CAS (2015231).

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflicts of interest.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Laboratory of Low-Carbon Conversion Science and EngineeringShanghai Advanced Research InstituteShanghaiChina
  2. 2.School of Environmental and Chemical EngineeringShanghai UniversityShanghaiChina

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