Iron-loaded leonardite powder for Fenton oxidation of Reactive Red 180 dye removal

Arslan, Hüdaverdi; Bouchareb, Raouf; Arikan, Ezgi Bezirhan; Dizge, Nadir

doi:10.1007/s11356-022-21306-7

Cited by 2 publications

(1 citation statement)

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“…Thus, organic dyes (e.g., MV 2B dye) should be removed from industrial effluents before they are discharged into freshwater ecosystems to protect the environment and human health. Consequently, a variety of treatment techniques have been used to remove organic dyes from polluted water, including adsorption [2], Fenton oxidation [3], biological degradation [4], photocatalysis [5], and filtration [6]. The adsorption process has emerged as an effective treatment technique among these approaches due to several characteristics such as effectiveness, easy operation, and specificity toward target analytes [7].…”

Section: Introductionmentioning

confidence: 99%

Coal-Based Activated Carbon via Microwave-Assisted ZnCl2 Activation for Methyl Violet 2B Dye Removal: Optimization, Desirability Function, and Adsorption Mechanism

et al. 2023

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In this work, activated carbon (referred to as MCAC) was produced by microwave radiation assisted ZnCl2 activation using Malaysian coal (MC) as a precursor. The Brunauer–Emmett–Teller findings indicate that the MCAC has a relatively large surface area (798.18 m2/g) and a mesoporous structure (average pore diameter of 3.67 nm). The removal of Methylene Violet (MV 2B) a cationic dye model, was employed to investigate the adsorption properties of MCAC. A numerical desirability function in the Box–Behnken design (BBD) was employed to optimize the independent crucial adsorption variables as follows: A: MCAC dose (0.02–0.1 g); B: pH (4–10); and C: time (5–25 min). The results of equilibrium and dynamic adsorption showed that the adsorption of MV 2B followed Freundlich and pseudo-second order models, respectively. The maximum amount of MV 2B dye that the MCAC could adsorb (qmax) was 134.1 mg/g. Electrostatic interactions, π-π stacking, H-bonding, and pore diffusion contribute to the adsorption of MV 2B dye onto the MCAC surface. This study demonstrates the potential to utilize MC as a low-cost precursor for the efficient synthesis of MAC and its utility for the removal of pollutants.

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