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| 基于正交试验制备废弃原棉活性炭及其吸附亚甲基蓝的研究 |
| Preparation of Activated Carbon from Waste Raw Cotton Based on Orthogonal Experiments and Its Adsorption of Methylene Blue |
| 投稿时间：2017-12-19 |
| DOI：10.13259/j.cnki.eri.2018.01.003 |
| 中文关键词: 活性炭 废弃原棉 氯化锌活化剂 氯化铁活化剂 正交试验 亚甲基蓝 |
| 英文关键词:activated carbon waste raw cotton activator of zinc chloride activator of ferric chloride orthogonal experiment methylene blue |
| 基金项目:中国博士后科学基金会资助项目（2017M611590） |
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| 中文摘要: |
| 以废弃原棉（简称“原棉”）为原料，采用FeCl3/ZnCl2混合物为活化剂制备活性炭，以活性炭得率和碘吸附值为试验指标，采用正交法考察了活化剂质量比、活化温度以及活化时间的影响，从而得到最优工艺参数：FeCl3/ZnCl2质量比为1∶1、活化温度为400℃以及活化时间为1 h。将最优样（AC-Fe/Zn）应用于吸附阳离子有机染料亚甲基蓝实验，结果表明：吸附过程符合Langmuir吸附等温模型，最大吸附量为342.87 mg·g-1。 |
| 英文摘要: |
| Activated carbon was prepared from waste raw cotton(raw cotton for short) using the mixture of FeCl3/ZnCl2 as activator.The effects of the mass ratio of FeCl3/ZnCl2,activation temperature and activation time on the experimental indexes including the carbon yield and iodine number were investigated by orthogonal experiment method.The optimal conditions were obtained with FeCl3/ZnCl2 of 1:1,activation temperature of 400℃ and activation time of 1 h.The best activated carbon sample named AC-Fe/Zn was used to the adsorption experiments of cationic methylene blue dye.The experimental results showed that the adsorption process followed Langmuir isotherm model with the maximum adsorption value of 342.87 mg·g-1. |
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