Ahmad M. Mohammad Alakraa

Citation:

Awad, H. E. A., A. M. Mohammad, and E. A. Farahat, "Potential use of dry powder of Vossia cuspidata (Roxb.) Griff. rhizomes and leaves in methylene blue dye remediation", Scientific Reports, vol. 13, issue 1: Nature Research, 2023.

Abstract:

Phytoremediation is a promising, cost-effective, and eco-friendly process for wastewater treatment. Herein, the dry biomasses of Vossia cuspidata (Roxb.) Griff. leaves (PL) and rhizomes including aerial stems (PR) were used to effectively remediate methylene blue (MB) dyes. Interestingly, the adsorption uptake and removal efficiency of MB by PR were higher than those of PL; exceeding 97 and 91% in 35 and 25 min for 0.1 and 0.4 g/L MB, respectively. The MB diffusion within the PL and PR was insignificant and the adsorption kinetics was principally controlled by the surface MB–adsorbent interaction, as consistently approved by the pseudo-second order kinetic model. In addition, the adsorption increased rapidly with the plant dosage with high dependence on the initial MB concentration. Moreover, the impact of shaking speed on the adsorption was minor but temperature played a critical role where the highest efficiencies were recorded at 30 and 40 °C on PL (91.9%) and PR (93.3%), respectively. The best removal efficiencies were attained with PR at pH 6, but with PL at pH 8. The Temkin isotherm could perfectly simulate the experimental data (R2 > 0.97); suggesting a linear decrease of the adsorption heat of MB with the plant coverage. © 2023, The Author(s).

Notes:

Cited By :1Export Date: 12 June 2024Correspondence Address: Mohammad, A.M.; Chemistry Department, Egypt; email: ammohammad@cu.edu.egChemicals/CAS: methylene blue, 61-73-4; Coloring Agents; Methylene Blue; Powders; Water Pollutants, ChemicalFunding text 1: The authors are grateful to Ms. Menna Rashad and Ms. Ahlam Zaki for their assistance in the early stages of running the adsorption experiments.References: Water, U., (2020) Water and Climate Change. The United Nations World Water Development Report, , UNESCO;Tee, G.T., Gok, X.Y., Yong, W.F., Adsorption of pollutants in wastewater via biosorbents, nanoparticles and magnetic biosorbents: A review (2022) Environ. Res., 212, p. 113248;
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