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Original Articles Open Access
Sulfuric acid (H2SO4) and Sodium hydroxide (NaOH) treated mango seed shells, subjected to a one way activation scheme was employed to study the adsorption capacities, intensities and mode of coverage of synthetic (commercial) dye uptake. Adsorption data obtained in this study indicate that the sorption of dye increases linearly with initial dye concentration. The adsorption data fitted well into both the Freundlich and Langmuir isotherms as indicated by high correlation of determination (R2 > 0.9) in both cases. Mode of surface coverage however was best predicted by the Freundlich isotherm (heterogeneity) for the home base activated carbon as does the Langmuir model (homogeneous coverage) for the reference commercial carbon. According to this study, percent dye removal (>64%) was reportedly estimated for derived biosorbent as against a fairly higher value (> 86) for the reference carbon. Proximity of generated data to those reviewed in literatures, is an indication that mango seed shells could compare, to a good extent with commercial activated carbon for organic dye removal from waste dyestuff.
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Author(s): Itodo HU and Itodo AU
Surface Coverage, Adsorption , Methylene blue, Mango Shells