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。
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.
出处
《中国造纸学报》
CAS
CSCD
北大核心
2013年第4期46-50,共5页
Transactions of China Pulp and Paper
基金
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)
关键词
碳酸钾
麦草碱木素
活性炭
吸附
苯酚
K2CO3
wheat straw alkaline lignin
activated carbon
adsorption
phenol
