中文摘要：

以废弃辣椒秸秆为原料,KOH/NaOH为活化剂,采用正交试验,研究了活化温度、时间、炭化温度及KOH/NaOH/C对吸附性能的影响,得出最佳工艺条件即活化温度为700℃、活化时间为80min、炭化温度为450℃、KOH/NaOH/C为3∶1∶1。此条件下制得的样品Langmuir比表面积高达3217.237m2/g,吸附平均孔径为3.590nm,皆高于单一KOH活化样品（SLangmuir=3159.200m2/g,D=2.672nm）。同时采用SEM和FT-IR对KOH/NaOH活化样品的表面形貌和官能团进行分析,并与单一KOH活化样品进行对照,发现它们的化学组成相似,并皆具有丰富和发达的孔隙结构,但KOH/NaOH活化样品出现更多的中孔和一定量的大孔。

英文摘要：

The active carbon with high specific surface area was prepared from capsicum straw by using KOH/ NaOH as the activation agent. Studied the activation temperature, activation time, carbonization temperature and KOH/NaOH/C on the adsorption properties through orthogonal test, and the optimum conditions are that the activation temperature of 700℃, the activation time of 80min, and the carbonization temperature of 450℃, KOH/NaOH/C for 3：1：1. Microstructure of the sample showed that the activated carbon developed posses- ses a large apparent surface area （SLangmuir =3270. 478m2/g） and average pore size diameter of 3. 590nm, larger than the single-KOH activated samples （SLangmuir=3159. 200m2/g, D =2. 672nm）. The morphology and struc- ture of active carbon were observed by SEM and FT-IR, the chemical composition is similar with the sample by KOH/NaOH activation or single-KOH/NaOH activation. The capsicum straw activated charcoal had enriched and developed cellular pore structure, but the sample by KOH/NaOH activation was found more mesopore and some measure of macropore.