| 魏冬雪,金小娟.麦草碱木素基活性炭对苯酚吸附的研究[J].中国造纸学报,2013,28(4):46-50 |
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| 麦草碱木素基活性炭对苯酚吸附的研究 |
| Adsorption of Phenol by Wheat Straw Alkaline Lignin-based Activated Carbon |
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| DOI： |
| 中文关键词: 碳酸钾 麦草碱木素 活性炭 吸附 苯酚 |
| Key Words:K2CO3 wheat straw alkaline lignin activated carbon adsorption phenol |
| 基金项目:本课题由山东轻工业学院制浆造纸国家重点实验室开放基金资助（0807）。 |
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| 中文摘要: |
| 在无水碳酸钾与麦草碱木素质量比4∶1、活化温度800℃、活化时间1 h的条件下制备麦草碱木素基活性炭，探讨了麦草碱木素基活性炭对苯酚的吸附作用。结果表明，麦草碱木素基活性炭的得率为17.9%，碘吸附值为827.5 mg/g；用麦草碱木素基活性炭处理100 mL苯酚溶液时，当苯酚初始质量浓度250 mg/L、麦草碱木素基活性炭投加量0.1 g、吸附温度30℃、苯酚溶液pH值约7时，麦草碱木素基活性炭对苯酚的吸附于80 min时达到平衡。麦草碱木素基活性炭对苯酚的吸附行为可用Langmuir等温式描述。 |
| Abstract: |
| Wheat straw alkaline lignin-based activated carbon was prepared under the following experimental conditions: ratio of anhydrous K2CO3 and wheat straw alkaline was 4∶1, activating temperature was 800℃, activating time was 1 h. The yield of the activated carbon was 17.9%, the adsorption number of iodine reached 827.5 mg/g. When 100 mL phenol solution with initial concentration of phenol 250 mg/L was treated by the activated carbon, dosage of the activated carbon was 0.1 g, and the temperature was 30℃, the solution pH value was about 7, the time for adsorption equilibrium was 80 min. The adsorption behavior of activated carbon on phenol could be described by Langmuir isotherm equation. |
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