Preparation and Modification of Biochars and Its Application in VOCs Adsorption
Volatile organic compounds(VOCs)are one of the important pollution sources in the atmosphere,which can cause serious harm to the environment and human health.Adsorption method is the most commonly used method for removing VOCs in industry,and adsorbent is the key to adsorption technology.Biochar is a carbon material prepared by processes such as pyrolysis and activation of biomass based materials at high temperatures.It has a high specific surface area,rich pore structure,and chemically active surface,and is widely used in the field of environmental pollution control.Based on recent research,this article reviews and summarizes the preparation and modification methods of biochar commonly used for removing VOCs,as well as the application research of biochar in adsorbing VOCs.The primary objective of this article is to evaluate the ability of biochar to remove VOCs,especially after various modification and activation processes,to evaluate the applicability of biochar as an adsorbent for removing VOCs;determine the impact of modification and activation on the adsorption capacity of VOCs;reveal the possible adsorption mechanism of biomass charcoal on VOCs.Finally,the article also puts forward suggestions and prospects for the regeneration of biomass charcoal.
NETL
NSTL
万方数据
维普
