生物质活性炭对气体吸附的研究进展

Research Progress on Gas Adsorption by Biomass Activated Carbon

中文关键词:  生物质  活性炭  吸附  微孔  活化

Key Words:biomass  activated carbon  gas adsorption  microporous  activation

中文摘要:

      以生物质为碳源制备的生物质活性炭（AC）作为一种吸附材料，因原料来源广泛、成本低廉、绿色环保等优点而受到广泛关注。本文阐述了生物质AC的结构特性和吸附机理，介绍并比较了物理活化法和化学活化法制备生物质AC的优缺点，重点综述了生物质AC在气体吸附领域中CO₂捕集、挥发性有机化合物（VOCs）去除和H₂储存方面的研究进展和应用。孔隙结构和比表面积对生物质AC的气体吸附性能具有显著影响，表面官能团和活化剂种类等因素会影响生物质AC孔隙结构、比表面积及其他表面性能。

Abstract:

      Biomass activated carbon （AC） prepared from biomass as a carbon source has received widespread attention as an adsorbent material， due to the advantages of wide source of raw materials， low cost， and green environmental protection. This paper described the structural properties and adsorption mechanism of biomass AC， introduced and compared the advantages and disadvantages of biomass AC prepared by physical and chemical activation methods， and focused on the review of the research progress and application of biomass AC in the field of gas adsorption about CO₂ capture， volatile organic compounds （VOCs） removal and H₂ storage. The pore structure and specific surface area had a significant effect on the gas adsorption performance of biomass AC， and factors such as surface functional groups and activator types also affected the pore structure， specific surface area and surface property differences of biomass AC.