中文摘要：

制备出一系列不同结构的炭气凝胶和有机气凝胶。通过吸附实验，研究了其吸附茶碱的动力学行为。实验表明，炭气凝胶比有机气微胶吸附速率快，吸附平衡时间短。炭气凝胶与文献报道的酚醛树脂对茶碱的吸附量相当，但吸附速率较快。茶碱在气凝胶上的吸附量随时间的变化规律遵从Langmuir方程，也符合假二级动力学吸附方程。

英文摘要：

A series of organic aerogels and carbon aerogels with different structure were prepared. The adsorption dynamics characteristics of theophylline on aerogels were studied. The results showed that the adsorption rates of carbon aerogels were rapider and the times to reach the plateau of carbon aerogels were shorter than those of organic aerogels. The adsorption rates of carbon aerogels were also rapider than that of phenolic resin, though carbon aerogels and phenolic resin had similar adsorption capacity of theophylline. The relation between the adsorption amounts of all samples and time obey Langmuir model and also followed pseudo second-order equation.