中文关键词:十二烷基硫酸钠磁性类水滑石甲基橙吸附性能 英文关键词:sodium dodecyl sulfatemagnetichydrotalcite-like compoundmethyl orangeadsorption property 基金项目:山西省自然科学基金项目(201701D121034)、山西省重点学科建设经费、长治学院科研创新团队建设项目、长治学院大学生创新训练项目和长治学院“药用植物”学科群学生基金项目资助

作者	单位	E-mail
毕浩宇		bihaoyu@126.com
葛金宝	长治学院化学系
张雅	长治学院化学系
李燕	长治学院化学系	liyan_china@126.com

摘要点击次数:1254 全文下载次数:0 中文摘要: 采用离子交换法制备了具有核-壳结构的磁性十二烷基硫酸钠改性类水滑石Fe3O4@(SDS-HTlc)纳米复合物，并利用透射电子显微镜、粉末X-射线衍射仪、红外光谱仪、电感耦合等离子体发射光谱仪、元素分析仪、接触角测定仪、比表面分析仪、微电泳仪和振动样品磁强计对其进行了表征。系统研究了Fe3O4@(SDS-HTlc)对甲基橙的吸附动力学和热力学。研究结果表明：Fe3O4@(SDS-HTlc)对甲基橙有较好吸附效果，吸附动力学曲线符合准二级动力学方程；吸附等温线符合linear方程，吸附量随体系pH值的增大和温度的升高均降低。在外部磁场下，30 s内可从水溶液中分离出Fe3O4@(SDS-HTlc)，这为去除水中疏水染料提供了简单的一步吸附处理方法。 英文摘要: In this paper, magnetic hydrotalcite-like compound modified with sodium dodecylsulfate, Fe3O4@(SDS-HTlc) nanocomposite, was prepared by ion-exchange method. The samples were characterized by transmission electron microscope, powder X ray diffractometer, infrared spectrometer, inductively coupled plasma atomic emission spectrometry, elemental analyzer, contact angle measuring instrument, specific surface analyzer, electrophorese?instrument, and vibrating sample magnetometer. The adsorption property of Fe3O4@(SDS-HTlc) nanocomposite for methyl orange was studied by adsorption kinetics and thermodynamics. The experimental results showed that the adsorption kinetics conformed to the pseudo-second-order kinetic equation, and the adsorption isotherm agreed well with the linear equation. Fe3O4@(SDS-HTlc) had better adsorption capacity for methyl orange, and the adsorption amount decreased with increasing pH (and temperature). Fe3O4@(SDS-HTlc) nanocomposite can be easily separated from aqueous solution by the external magnetic field in 30 s, and may offer a simple single step adsorption treatment option to remove dye from water. 查看全文查看/发表评论下载PDF阅读器 相关附件：投稿pdf版版权转让声明书 -->