摘要
从腐殖酸中提取胡敏酸用于改性膨润土,并研究改性膨润土对铜离子和2,4-二氯苯酚混合液的吸附性能。实验结果表明:吸附剂量为4g/L时,在室温和pH值为4～6的条件下,对100mg/L的混合液吸附60min后效果最好。改性土对铜离子最高吸附量达到23mg/g,对2,4-二氯苯酚的最大吸附量达到16mg/g。吸附符合Langmuir吸附等温方程以及伪二级动力学模式。
Humic acid refined from humus acid was used for the modification of bentonite,and then the modified bentonite was used for the simultaneous adsorption of copper ions and 2,4-dichlorophenol.Experimental results indicated that the optimum adsorption could be achieved with 4 g/L adsorbent under room temperature for 100 mg/L mixed solution with pH 4—6 in 60 minutes,through which the maximum adsorption capacity for copper ions and 2,4-dichlorophenol was up to 23 mg/L and 16 mg/L,respectively.The adsorption was fitted well with Langmuir isotherm and the pseudo-second-order model.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2010年第9期1767-1770,共4页
Chemical Industry and Engineering Progress
基金
福建省发改委2009专项基金(JH-021)
福建师范大学闽江学者人才引进基金资助项目
关键词
改性膨润土
胡敏酸
铜离子
2
4-二氯苯酚
同时吸附
modified bentonite
humic acid
copper ions
2
4-dichlorophenol
simultaneous adsorption
