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CARBONLETT, vol. 26, no. 1, pp.1-10, 2018

DOI: DOI: http://dx.doi.org/10.5714/CL.2018.26.001

Review of the use of activated biochar for energy and environmental applications

Hyung Won Lee1,*, Young-Min Kim2,*, Seungdo Kim2, Changkook Ryu3,Sung Hoon Park4, and Young-Kwon Park1,♠

Affiliation: 1School of Environmental Engineering, University of Seoul, Seoul 02504, Korea
2Department of Environmental Sciences and Biotechnology, Hallym University, Chuncheon 24252, Korea
3School of Mechanical Engineering, Sungkyunkwan University, Suwon 16419, Korea
4Department of Environmental Engineering, Sunchon National University, Suncheon 57922, Korea

Abstract: Biochar obtained from the thermal conversion of biomass has high potential as a substitute material for activated carbon and other carbon-based materials because it is economical, environmentally friendly, and carbon-neutral. The physicochemical properties of biochar can also be controlled by a range of activation methods such as physical, chemical, and hydrothermal treatments. Activated biochar can be used as a catalyst for the catalytic pyrolysis of a biomass and as an absorbent for the removal of heavy metal ions and atmospheric pollutants. The applications of biochar are also expanding not only as a key component in producing energy storage materials, such as supercapacitors, lithium ion batteries, and fuel cells, but also in carbon capture and storage. This paper reviews the recent progress on the activation of biochar and its diverse present and future applications.

Keyword: biochar, activation, energy storage materials, catalyst, adsorbent,