Removal of malachite green from water: Comparison of adsorption in a residue-derived AC versus photocatalytic oxidation with TiO2 and study of the adsorption-photocatalysis synergy

Boumad, S.; Cano-Casanova, L.; Román-Martínez, M.C.; Bouchenafa-Saib, N.; Lillo-Ródenas, M.A.

doi:10.1016/j.envres.2024.118510

Cited by 8 publications

(1 citation statement)

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“…Once absorbed it can persist in the tissue of these organisms, potentially reaching the concentrations that can be harmful to itself or the organism that feed on it. This dye if present above certain concentration it shows adverse effect on reproductive, immune system and carcinogenic potential (Meena et al, 2016;Qu et al, 2018), also causes problems to consumers of treated fish (Boumad et al, 2024). Consequently, there is an urgent need to develop an economical and sustainable treatment methodology for the water containing the dye.…”

Section: Introductionmentioning

confidence: 99%

Ni-Co doped TiO2 catalyst for efficient photocatalytic degradation of Malachite Green under UV and direct sunlight

Mhalshekar,

Pawar,

Gaydhane

et al. 2024

Preprint

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In the present study combustion synthesized TiO2 nanoparticles were wet impregnated with Ni, Co and Ni-Co, respectively. The photocatalytic performance of synthesized catalysts was evaluated against Malachite Green dye. The synthesized materials were characterized for crystallite size, surface morphology, elemental composition, and band-gap using X-ray diffraction, scanning electron microscopy, energy dispersive spectroscopy, and ultra-violet diffused reflectance spectroscopy, respectively. The optimum parameters for maximum degradation were found by examining the effects of catalyst loading, initial dye concentration and light intensity. A comparative analysis of Ni-doped, Co-doped, and Ni-Co-doped TiO2 photocatalysts was conducted. The results indicate superior photocatalytic activity of Ni-Co doped TiO2 among the catalysts investigated under UV light. The degradation kinetics was studied and the underlying degradation mechanism is proposed with the help of LC-MS analysis. Furthermore, a comparative study on the degradation under solar radiation using Co-Ni/TiO2 was conducted.

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Section: Introductionmentioning

confidence: 99%