以农业废料中的油菜秸秆为原料,利用化学活化的方法制备活性炭。利用活性炭对甲基橙的吸附探讨了料液比、活化剂磷酸浓度、活化时间、活化温度、浸泡时间对活性炭吸附能力的影响,得出了活性炭制备的最佳工艺条件,最佳的工艺条件为料液比1∶3,活化剂浓度60%,活化时间4h,活化温度400℃。 Activated carbon was prepared by chemical activation method using rape straw in agricultural waste as raw material. Adsorption of methyl orange by activated carbon was used to investigate the effects of material-liquid ratio, phosphoric acid concentration, activation time, activation temperature and soaking time on the adsorption capacity of activated carbon. The optimum technological conditions for the preparation of activated carbon and the optimum technological conditions were obtained The ratio of solid to liquid was 1: 3, the activator concentration was 60%, the activation time was 4h and the activation temperature was 400 ℃.