新型有序介孔炭的制备及其对酸性黑1染料的吸附性能研究  

Preparation of new ordered mesoporous carbon and its adsorption performance for acid black 1 dye

作　　者：戴红玲[1] 彭小明[1] 胡锋平[1] 

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013

出　　处：《环境污染与防治》2016年第11期1-6,共6页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.61272197);江西省自然科学基金资助项目(No.20151BAB203032)

摘　　要：成功合成沥青树脂并以其作为碳源,利用模板法,制备有序介孔炭(OMC)纳米材料。采用吸附实验,研究了制备的OMC对酸性黑1(AB1)染料的吸附性能,同时考察了温度、pH和强电解质对吸附量的影响,研究了不同吸附温度下的等温吸附式。结果表明,OMC对AB1染料的吸附量随着pH升高而减少;随着盐度的增加呈先增加后趋于稳定的趋势;吸附量随着温度的升高而增加,对AB1染料的吸附过程是吸热反应;吸附过程更适宜采用Langmuir等温吸附方程和准二级动力学模型表达;由于位阻效应和介孔材料的孔径结构等因素的影响,OMC对AB1染料的吸附效果优于活性炭。Asphaltic resin was synthesized and it was selected as carbon source to prepare ordered mesoporous carbon （OMC） by template method. The adsorption performance of acid black 1 （AB1） dye on mesoporous carbon was studied through adsorption experiment. The effect of temperature,pH and strong electrolyte on adsorption amounts were investigated. The adsorption isotherms were studied at different adsorption temperatures. The results showed that the adsorption amounts decreased with increasing pH,firstly increased and then leveled off with increasing ionic strength, increased with increasing temperature. The studies showed that the adsorption process was endothermic, and the pseudo-second order reaction model and Langmuir isotherm equation could better describe the adsorption process. The OMC showed higher AB1 dye adsorption capability than activated carbon due to steric effects, the pore structure of mesoporous materials and other factors.

关 键 词：沥青树脂 有序介孔炭 吸附 

分 类 号：X703[环境科学与工程—环境工程] O647.3[理学—物理化学]