摘要
研究了高岭土对结晶紫的吸附性能,并进一步探讨了等温吸附模型和吸附动力学。分别考察了吸附时间、pH值、高岭土投加量、结晶紫初始浓度和温度等因素对高岭土吸附结晶紫效果的影响。结果表明,吸附时间90 min,高岭土投加量10 g/L,碱性条件下能达到较好的结晶紫吸附效果。高岭土对结晶紫吸附动力学符合准二级动力学模型,吸附等温方程符合Langmuir和Freundlich吸附模型。
The adsorption characteristics and further the isotherm model and dynamics of crystal violet on Kaolin have been studied. The effects of adsorption time,pH value,Kaolin dosage,crystal violet initial concentration and temperature on crystal violet adsorption have been investigated,respectively. The results show that the better crystal violet adsorption effect can be obtained in the adsorption time of 90 min,Kaolin dosage of 10 g/L and alkaline solution. The adsorption dynamic model of crystal violet on Kaolin fits with pseudo-second-order dynamic model. The adsorption fits with Langmuir and Freundlich isothermal adsorption models.
出处
《应用化工》
CAS
CSCD
北大核心
2016年第1期47-51,共5页
Applied Chemical Industry
基金
国家自然科学基金项目(41202170
41372236)
国家水体污染控制与治理科技重大专项(2012ZX07505-001-01)
辽宁石油化工大学环境科学与工程学科创新团队([2014]11号)
关键词
高岭土
结晶紫
吸附
等温吸附模型
Kaolin
crystal violet
adsorption
isotherm adsorption model
