活性炭纤维对酸性橙Ⅱ的吸附性能研究  

Adsorption characteristics of acid orangeⅡin water by activated carbon fiber

作　　者：乔启成[1,2] 赵跃民[3] 王立章[1] 杨春和[2] 顾卫兵[2] 

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116 [2]南通农业职业技术学院环境与资源系,江苏南通226007 [3]中国矿业大学化工学院,江苏徐州221116

出　　处：《环境污染与防治》2013年第11期1-4,9,共5页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.50908226);江苏省高校"青蓝工程"资助项目(苏教师[2012]39号);南通市社会事业科技创新与示范计划资助项目(HS2011014);江苏省农村环境污染防治工程技术研究开发中心资助项目(苏教办科[2010]8号)

摘　　要：研究了25、30、35℃下酸性橙Ⅱ在活性炭纤维上的吸附平衡、吸附热力学和吸附动力学特性。结果表明,酸性橙Ⅱ在活性炭纤维上的吸附等温线可用Freundlich方程进行描述,吸附为自发的吸热过程,温度升高有利于吸附的进行,主要属于物理吸附;伪二级动力学方程、Elovich方程、颗粒内扩散方程均能很好地描述酸性橙Ⅱ在活性炭纤维上的吸附动力学行为,通过拟合得到了其动力学参数。The adsorption equilibrium, thermodynamics and dynamics of acid orange Ⅱ on activated carbon fiber （ACF） were determined at 25, 30, 35℃, respectively. The experimental results demonstrated that Freundlich adsorption equation could describe the adsorption process well. The thermodynamic parameters illustrated that the ad- sorption was a spontaneous and exotbermic process, and the adsorption capacity of dye increased with the tempera- ture. The adsorption dynamics data could be well fitted by pseudo second-order equation, intraparticle diffusion equa- tion and Elovich equation. The dynamic parameters of acid orange Ⅱ adsorption were obtained through the model fitting. This research provides scientific basis for the removal and treatment of acid orange Ⅱ in water by activated carbon fiber.

关 键 词：活性炭纤维 酸性橙Ⅱ 吸附 热力学 动力学 

分 类 号：X703[环境科学与工程—环境工程]