SDS加入量对Fe3O4@(SDS-HTlc)纳米复合物吸附对苯二酚性能影响研究

Effect of SDS Addition Amount on the Adsorption of Hydroquinone by Fe3O4@(SDS-HTlc)Nanocomposites

在十二烷基硫酸钠(SDS)加入量不同的基础上,采用离子交换法制备了系列磁性SDS改性类水滑石纳米复合物Fe3O4@(SDS-HTlc),并考察了系列复合物对对苯二酚吸附效果,探讨了十二烷基硫酸钠加入量对吸附效果的影响。实验结果显示:Fe3O4@(SDS-HTlc)对对苯二酚的吸附效果明显,且随SDS加入量的增多,吸附能力先增加后降低;最佳SDS加入量时,吸附等温线符合Linear方程,吸附量随温度降低而增大。

A series of magnetic SDS modified hydrotalcite-like compound nanocomposites Fe3O4@(SDS-HTlc)were prepared by ion exchange method on the basis of different amount of sodium lauryl sulfate(SDS).The adsorption behaviors of the Fe3O4@(SDS-HTlc)nanocomposites for hydrocatechol were studied.The experimental results showed that Fe3O4@(SDS-HTlc)nanocomposites had good adsorption capacities for hydrocatechol.With the increase of SDS content,the adsorption capacity for hydrocatechol first increased and then decreased.The adsorption kinetics was in accordance with the quasi-second-order kinetic equation,and the adsorption isotherm was in accordance with Linear equation.The adsorption capacity of Fe3O4@(SDS-HTlc)for hydrocatechol increased with the decrease of temperature.