| Title |
Biogenic synthesis of Fe-doped Al 2 O 3 nanoparticles using Eichhornia crassipes for the remediation of toxicant malachite green dye: Kinetic and thermodynamic studies |
| ID_Doc |
13171 |
| Authors |
Thakur, A; Kaur, H; Aguedal, H; Singh, V; Singh, V; Goel, G |
| Title |
Biogenic synthesis of Fe-doped Al 2 O 3 nanoparticles using Eichhornia crassipes for the remediation of toxicant malachite green dye: Kinetic and thermodynamic studies |
| Year |
2024 |
| Published |
|
| Abstract |
Water pollution resulting from the discharge of dye -containing effluents poses a formidable challenge to environmental sustainability and human well-being. Thus, present work focuses on the innovative biogenic synthesis of Fe -doped Al 2 O 3 nanoparticles using Eichhornia crassipes leaf extract as a sustainable and eco-friendly approach towards the removal of Malachite Green dye from aqueous solutions. The synthesis process is characterized using various analytical techniques to confirm the successful formation of Fe -doped Al 2 O 3 nanoparticles. The synthesized nanoparticles crystallize in corundum structure with average particle size of 61.87 nm, confirmed through XRD and BET analysis. UV examination revealed an absorption peak at 235 nm, confirming alumina nanoparticle formation, while FESEM micrographs depicted a rock -like structure. The synthesized nanoparticles demonstrate promising potential for the remediation of the toxicant Malachite Green dye as 96.67 % of the dye has been removed within 60 min. Batch experiments were conducted to study the adsorption kinetics, isotherms, and thermodynamics and the adsorption mechanism fitted well with Freundlich isotherm. (R 2 = 0.982) and pseudo -second order kinetics (R 2 = 1.000). Comparative literature analysis suggests present study is the first to investigate, Fe -doped Al 2 O 3 through biogenic approach and its potential efficacy in degrading Malachite green dye. This biogenic approach to Fe -doped Al 2 O 3 synthesis provides valuable insights for industrial applications and aligning with sustainable development goals. The work also important considering circular economy objectives and commercial use. |
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