Ultra Efficient Removal of Basic Blue ۴۱ from Textile Industry’s Wastewaters by Sodium Dodecyl Sulphate Coated Magnetite Nanoparticles: Removal, Kinetic and Isotherm Study

This research presents adsorption potential of surfactant (sodium dodecyl sulphate; SDS) coated magnetite nanoparticles as suitable and efficient adsorbent for the removal of Basic Blue ۴۱ (BB ۴۱), as a cationic dye from textile’s company wastewater. The effects of various experimental parameters (e.g. initial pH of the solution, SDS amount, and ionic strength) on the adsorption efficiency of BB ۴۱ were investigated and optimized. The result showed that kinetic of adsorption process is very fast and after ۳۰ min equilibrium for dye adsorption could be obtained.. Equilibrium isotherm data were fitted to Langmuir and Freundlich models. The characteristic parameters for each model have been determined. The Langmuir isotherm gave the best correlation for the adsorption of the BB ۴۱ onto the adsorbent. A superior maximum adsorption capacity (۲۰۰۰.۶ mg g-۱) was obtained for the adsorbent from the Langmuir model. Also, reuse study showed that Fe۳O۴ NPs could be regenerated and reused at least for six times.

Keywords:

Magnetite nanoparticles , Removal , Basic dyes , Basic Blue ۴۱