Abstract
Biochar is a carbonaceous material generated by pyrolysis of biomass under the condition of low oxygen content. Because of its large specific surface area, developed pore structure and rich oxygen-containing functional groups on the surface, it has a good adsorption and fixation effect on organic pollutants in soil, water and sediments. It is considered as an ideal and universal adsorption material and is widely used in the field of environmental pollution control. This paper reviews the preparation, application and defects of biochar. In order to provide reference value for the improvement of potential value and utilization rate of biochar.
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