林产化学与工业Issue(6)：129-134,6.DOI:10.3969/j.issn.0253-2417.2014.06.021
沙柳活性炭对亚甲基蓝的吸附动力学和吸附等温线研究
Adsorption Kinetics and Isotherm of Methylene Blue on Activated Carbon from Sandlive Willow
摘要
Abstract
The activated carbon with low cost and high performance was prepared by chemical activation of salix psammophila in order to improve utilization value of the biomass. Three kinds of activators were employed and their adsorption performance of methylene blue ( MB ) were investigated. The effects of temperature and pH value on adsorption, adsorption isotherms and adsorption kinetics studied. The experimental results indicated that activated carbon from different activators had different ability in methylene blue adsorption. When using KOH, H3 PO4 and ZnCl2 as activators, adsorption capacities were 519. 63, 347. 13 and 323. 45 mg/g, respectively. Adsorption behavior of activated carbon conformed to the pseudo-second-order kinetics with good correlation and fitted well with the Langmuir isotherm model. The increasing of pH value and temperature was beneficial for adsorption process.关键词
沙柳活性炭/亚甲基蓝/吸附动力学/吸附等温线Key words
sandlive willow activated carbon/methylene blue/adsorption kinetics/adsorption isotherms分类
化学化工引用本文复制引用
张桂兰,鲍咏泽,苗雅文..沙柳活性炭对亚甲基蓝的吸附动力学和吸附等温线研究[J].林产化学与工业,2014,(6):129-134,6.基金项目
国家自然科学基金资助项目(31060097) （31060097）
