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

发布时间：2018-01-23 21:20

本文关键词： 沥青树脂有序介孔炭吸附　出处：《环境污染与防治》2016年11期 　论文类型：期刊论文

【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。
[Abstract]:Asphalt resin was successfully synthesized and used as carbon source to prepare ordered mesoporous carbon (OMC) nanomaterials by template method. Adsorption experiments were carried out. The adsorption properties of the prepared OMC for acid black 1 / AB 1) dyes were studied. The effects of temperature and pH and strong electrolytes on the adsorption capacity were also investigated. The isothermal adsorption formula at different adsorption temperatures was studied. The results showed that the adsorption capacity of AB1 dyes decreased with the increase of pH. With the increase of salinity, the salinity increased first and then tended to be stable. The adsorption amount increased with the increase of temperature and the adsorption process of AB1 dyes was endothermic reaction. The adsorption process is more suitable for Langmuir isothermal adsorption equation and quasi-second-order kinetic model. The adsorption efficiency of AB1 dyes was better than that of activated carbon due to the influence of steric resistance and pore structure of mesoporous materials.
【作者单位】：华东交通大学土木建筑学院;
【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)
【分类号】：X703;O647.3
【正文快照】： 染料广泛应用于人类生产和生活中,如纺织、涂料、造纸和印刷等行业。染料废水成分复杂,化学结构稳定,pH波动大,难降解;并且由于废水量大,污染物浓度高,染料废水已成为我国当前最主要的水体污染源之一[1-2]。部分染料和其代谢产物具有生物毒性或三致效应(致畸、致癌及致突变),

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