有机柱撑蒙脱石对十二烷基苯磺酸钠的吸附特性研究

In this paper, HDTMAB pillared montmorillonites were synthesized and applied in wastewater treatment of SDBS. The adsorption characteristic of HDTMAB pillared montmorillonite on removal of different concentrations of anionic surfactant - sodium dodecyl benzyl sulfate (SDBS) is studied through the batch adsorption experiments. The pillared experimental results show that HDTMAB pillared montmorillonites have higher specific surface areas and larger basal spacings than raw montmorillonites. The difference in characterization may prove the adsorption capacity of pillared montmorillonite has improved significantly. then The batch adsorption experimental results show thatthe optimal adsorption condition is 6h of reaction time, pH value of 6. Pillared montmorillonites have a significant SDBS(SDS) removal rate than raw clays.The SDBS removal efficiency is more than 90% when it reached a reaction equilibrium.. Among all pillared montmorillonites, 2.0CEC pillared montmorillonite has been proved to be a promising adsorption materials.