Preparation and Modification of Biochar Materials
The preparation ways of biochar are primarily divided into pyrolysis, hydrothermal carbonisation (HTC), and microwave carbonisation. Different preparation ways affect the physical and chemical properties of biochar, such as yield, ash, specific surface area, pore structure, type and variety of useful groups, and cation exchange capacity. Compared with the pyrolysis, HTC doesn’t need drying step …
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