中文摘要：

本文制备了新型层次孔炭气凝胶（HPCA-1）,利用扫描电镜和N2吸附仪表征所得HPCA-1的纳米结构,进一步研究HPCA-1对模型有机物亚甲基蓝（M B）的液相吸附性能。结果表明,HPCA-1具有独特的微孔-中孔-大孔呈层次化分布的孔结构特征,其BET比表面积为512 m^2·g^-1,微孔表面积为359 m^2·g^-1。适当增加吸附时间、搅拌速率、吸附温度和溶液p H值,有助于HPCA-1对溶液中MB的脱除,其脱除率可达99.8%;HPCA-1对MB的吸附动力学符合准二级吸附动力学方程,且吸附过程初期主要由液膜扩散控制,后期主要由颗粒内扩散控制。

英文摘要：

A novel hierarchical porous carbon aerogel（HPCA） was fabricated and its nanostructure was investigated by SEM and N2 adsorption.The methylene blue（MB） adsorption properties of the HPCA in water were studied.It is found that the HPCA has a hierarchical micro-,meso-and macropore structure.Its BET and micropore surface areas are 512 and 359 m^2·g^-1,respectively.The MB adsorption capacity increases with adsorption time,speed of stirring,temperature and pH value,and the MB removal efficiency can reach 99.8%under optimized conditions.The adsorption kinetics can be well described by a pseudo-second-order equation and the adsorption is controlled by liquid film diffusion in the initial stages and intraparticle diffusion later.