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- W4313647651 abstract "Abstract The elimination of textile dye from wastewater is an ecological and environmental barrier to continued industrial expansion. The current study aims to analyse the anionic methyl blue (MB) dye's ability to bind to the Artocarpus heterophyllus leaf powder (AHLP) and assess its capacity to eliminate the dye from an aqueous solution. The Fourier transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM), X-ray diffraction (XRD), and zero-point charge (pHzpc) analyses were utilised to characterise the leaf powder (adsorbent). The adsorption efficiency was evaluated through various conditions, including solution pH (3-10), dye concentration (20-50 mg.L-1), AHLP dosage (1.50-8.0 g.L-1), contact time (0-90 min), and temperature (300-323 K). The maximum dye adsorption efficiency (91.10%) was achieved within 45 min, using 3.0 g.L-1 adsorbent dose in 20 mg.L-1 MB solution at pH 4.0 and 300 K temperature. The adsorption mechanism was congruent with the pseudo-second-order model (R2 > 0.99) and the Langmuir model (R2 = 1.0). Several thermodynamic parameters, like enthalpy change (∆H o ), Gibbs free energy change (∆G o ), and entropy change (∆S o ) were analysed to identify the spontaneity and exothermic nature of the adsorption. Besides, the phytotoxicity trials on Cicer arietinum seeds revealed 0%, 80%, 87%, and 100% germination in the experimental MB solution, treated MB solution, MB-loaded AHLP, and fresh water, respectively, confirming the non-toxicity of both the treated MB solution and MB-loaded AHLP adsorbent. Therefore, the AHLP adsorbent might be a potential material for wastewater management due to its several advantages, like cost-free, abundant, easy to prepare, fast and high efficiency, and eco-friendly." @default.
- W4313647651 created "2023-01-07" @default.
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- W4313647651 date "2023-01-06" @default.
- W4313647651 modified "2023-10-18" @default.
- W4313647651 title "Cost-effective and eco-friendly leaf-based bio-adsorbent for methyl blue dye adsorption: thermodynamics, kinetics, isotherms, and phytotoxicity" @default.
- W4313647651 doi "https://doi.org/10.21203/rs.3.rs-2432305/v1" @default.
- W4313647651 hasPublicationYear "2023" @default.
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