Adsorption of Rhodamine B on CS-CNTs-SA Composite Adsorbents
Different proportions of chitosan (CS) and multi-walled carbon nanotubes (CNTs) and sodium alginate (SA) composite materials were prepared by sol-gel method.The products were characterized by SEM and FTIR.The effects of pH,the adsorbent dosage,the adsorption kinetics and the adsorption isotherm on the degradation of Rhodamine B in the wastewater were examined in detail.Under the condition that CS-CNTs-SA was 12 mg · mL-1,pH was 1.0,and the time was 24 hours,the efficiency of removal Rhodamine B could reach the maximum in the room temperature.The adsorption processes fit well to both Freundlieh isotherm model and Langmuir isotherm model.In addition,CS-CNTs-SA composite adsorbents could be used to adsorb Rhodamine B with high removal rate again and again.
chitosanmulti-walled carbon nanotubessodium alginateadsorbentRhodamine B
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万方数据
维普
