活性炭制备方法及应用的研究进展

Research Progress on Preparation Methods and Applications of Activated Carbon

活性炭因具有比表面积大、孔隙结构发达、吸附效率高、化学稳定性好等优点而备受关注。活性炭的制备包括两个阶段:炭化和活化,其中活化又分3种方法——物理活化法、化学活化法和物理-化学耦合活化法。通过比较不同活化剂、不同活化方法所制备的活性炭性能,分析了各种活化方法的优势和不足,并预测了活性炭制备方法未来的研究方向。

Activated carbon with large specific surface area,developed pore structure,high adsorption efficiency and good chemical stability has attracting extensive attentions.There are two main steps of preparing activated carbon：carbonization and activation,and activation includes three methods,i.e.,physical activation method,chemical activation method and physico-chemical activation method.In this paper,the performances of activated carbon prepared with different activators and different methods are compared,the advantages and disadvantages of the various activation methods are analyzed,and the future research directions of the preparation of activated carbon are predicted.