Preparation of N-doped activated carbons with high CO 2 capture performance from microalgae (Chlorococcum sp.)

N-Doped activated carbons with high CO 2 adsorption capacity have been prepared from sugar-rich microalgae ( Chlorococcum sp.) feedstock via simple hydrothermal carbonization coupled with KOH activation or NH 3 modification. The KOH activated carbons exhibit higher CO 2 capture performance compared...

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Bibliographic Details
Published in:RSC advances 2016, Vol.6 (45), p.38724-38730
Main Authors: Luo, H., Zhu, C. C., Tan, Z. C., Bao, L. W., Wang, J. J., Miao, G., Kong, L. Z., Sun, Y. H.
Format: Article
Language:English
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Summary:N-Doped activated carbons with high CO 2 adsorption capacity have been prepared from sugar-rich microalgae ( Chlorococcum sp.) feedstock via simple hydrothermal carbonization coupled with KOH activation or NH 3 modification. The KOH activated carbons exhibit higher CO 2 capture performance compared with the ones treated by NH 3 . The nitrogen-enriched hydro-char derived from microalgae was activated with KOH at 700 °C to improve the textural characteristics (surface area, pores size, and total pore volume), and the resulting carbon showed a highly ordered structure with a surface area of 1745 m 2 g −1 , and narrow pore size distribution with the maxima peak located in the micropore range (
ISSN:2046-2069
2046-2069
DOI:10.1039/C6RA04106J