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以丝瓜络为原料,经氯化锌活化丝瓜络制备微孔活性炭。通过设计正交实验,考察了不同因素氯化锌浓度、活化温度、活化时间和浸泡时间对所制备活性炭吸附性能的影响。结果表明:最佳工艺条件为活化剂浓度40%、活化温度450℃、活化时间60 min和浸泡时间12 h。在此条件下制备的活性炭孔径分布窄,为多微孔、无定形活性炭,BET比表面积达1 020 m2/g,其吸附碘值、亚甲基蓝值分别达到819.45 mg/g、165.43 mg/g,是一种廉价且吸附性能高的吸附材料。
With loofah as raw material, activated by loofah zinc chloride prepared porous activated carbon. Through the design of orthogonal experiment, different factors such as zinc chloride concentration, activation temperature, activation time and soaking time on the adsorption properties of activated carbon were investigated. The results showed that the optimum conditions were: activator concentration 40%, activation temperature 450 ℃, activation time 60 min and soaking time 12 h. Under this condition, the pore size distribution of activated carbon was narrow and microporous, and the BET specific surface area was 1 020 m2 / g. The adsorption iodine value and methylene blue value reached 819.45 mg / g and 165.43 mg / g, respectively A cheap and highly absorbent adsorbent.