Abstract
Herein, solvothermal synthesized Cu2FeSnS4 (CFTS) particles are reported as an efficient adsorbent for removing acid fuchsin (AF) dye pollutants from the wastewater. Variation in synthesis reaction time led to have a porous sphere, sheet-flakes, and intermixed flower-sheet morphologies of CFTS particles synthesized at 200 °C for 6 h, 12 h and 18 h, respectively. The effect of surface morphologies of the CFTS particles on dye adsorption capability is examined. The porous spheres of CFTS particles have shown approximately (89.25 ± 2.21)% of AF dye adsorption within 10 min, and the value reaches (97.12 ± 0.76)% in 60 min. The high adsorption capacity i.e (123.12 ± 2.09) mg/g is obtained for porous spherical CFTS particles. The adsorption isotherm and kinetic studies reveal that the dye adsorption can be explained by the Langmuir isotherm and pseudo-second-order kinetic model. Further, the porous CFTS particles exhibit good stability and reusability of the adsorbent for wastewater purification. The present study results indicate that porous earth-abundant and non-toxic quaternary chalcogenide particles can be low cost, highly efficient adsorbent for removing organic acid fuchsin (AF) dye pollutants from wastewater.
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