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Biomass Chemical Engineering ›› 2022, Vol. 56 ›› Issue (1): 57-66.doi: 10.3969/j.issn.1673-5854.2022.01.008

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Research Advance on Adjustment of Pore Structure of Plant-based Activated Carbon

Meijuan ZHONG, Xing′e LIU, Lili SHANG, Genlin TIAN, Shumin YANG, Jianfeng MA()   

  1. Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, International Center for Bamboo and Rattan, Beijing 100102, China
  • Received:2020-09-14 Online:2022-01-30 Published:2022-01-18
  • Contact: Jianfeng MA E-mail:Majf@icbr.ac.cn

Abstract:

The proportion of plant-based activated carbon used in the field of environmental protection is increasing year by year due to its characteristics such as wide sources, price moderate, short preparation cycle, mature process, large specific surface area, developed pore structure, low content of hybrid elements, and excellent thermal and chemical stability. The main components of plant are cellulose, hemicelluloses and lignin. In the present work, the effect of these three components on the pore formation of biochar and activated carbon was reviewed. In addition, the pore forming mechanism and characteristics of the formed pores of the physical activation, chemical activation (KOH activation, H3PO4 activation and ZnCl2 activation), catalytic activation and self-activation process were contrasted and summarized. Finally, the future research direction of plant-based activated carbon pore regulation was proposed based on the problems in previous research work.

Key words: plant-based activated carbon, cellulose, hemicelluloses, lignin, pore structure

CLC Number: