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Removal of Rhodamine B dye by sodium dodecyl sulfate modified Fe2O3 / molecular sieve

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Document pages: 10 pages

Abstract: The main purpose of this study is to study the removal of Rhodamine B (RB) dye by 13X zeolite molecular sieve supported on Fe2O3 nanoparticles (fe2o3-13x). Fe2o3-13x was synthesized and modified by adding sodium dodecyl sulfate (SDS). The prepared fe2o3-13x was characterized by XRD, TEM, SEM and zeta potential. The effects of solution pH, SDS dosage, contact time, initial dye concentration and adsorbent dosage on RB removal rate were studied. The maximum removal efficiency of 99.3 was achieved. The adsorption equilibrium data of Rb were fitted by Freundlich model, and the maximum adsorption capacity was 89.3   mg g. The results show that the adsorption of Rb by SDS modified fe2o3-13x (fe2o3-13x-ms) is described by pseudo-s curvecond-order kinetic equation. The results reported in this paper indicate that a high RB removal percentage was attained by adding SDS to Fe2O3-13X.

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