磷酸盐活化法制备椰壳纤维基活性炭研究

采用正交试验设计实验方案,以椰纤维为原料,经炭化、活化等处理,研究磷酸盐活化制备高比表面积活性炭的实验方案与工艺条件,得到比表面积高,孔隙发达,吸附效果优异的活性炭.考查了活化剂配比、活化温度、活化时间、升温速率等因素对活性炭吸附性能及产率的影响,得到最佳的活化方案与工艺条件.并在实验的基础上探讨了活性炭的活化机理.

Preparation of phosphate-activated carbon from the coconut fibers

Based on orthogonal experimental design, activated carbon with high specific surface area, abundant mesopores and favorable adsorbing effects was prepared from coconut fibers through carbonization and activation. The primary influence parameters such as the ratio of activating agent, carbonization temperature, activation temperature, activation time and heating rate on the adsorption behavior of activated carbon were investigated and the optimum preparation conditions were obtained. The activation mechanism is also discussed on the basis of experiments.