Enhanced catalytic oxidation of reactive dyes by reuse of adsorption residuals as a heterogeneous catalyst with persulfate/UV process

Mahanna, Hani; El-Bendary, Nohier

doi:10.1007/s13762-021-03856-4

Cited by 11 publications

(2 citation statements)

References 44 publications

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“…Dye metabolites that have been subjected to oxidation, heat, and light are very hazardous and have cancer-causing properties (Assefi et al 2014 , Borzelleca et al 1987 ). When trying to remove it, we may face many difficulties including dye decomposition since these dyes are not biodegradable and have a high resilience against oxidation and light (Mahanna & El-Bendary 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Effective removal of acetamiprid and eosin Y by adsorption on pristine and modified MIL-101(Fe)

Sakr,

Adly,

Gar Alalm

et al. 2024

Environ Sci Pollut Res

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In this work, the efficacy of two metal–organic frameworks (MIL-101(Fe) and NH2-MIL-101(Fe)) in eliminating acetamiprid (ATP) insecticide and eosin Y (EY) dye from aqueous solution is tested. An analysis was conducted on the developed nanocomposite’s optical, morphological, and structural characteristics. The adsorption isotherm, kinetics, thermodynamics, reusability, and mechanisms for ATP and EY dye removal were assessed. NH2-MIL-101(Fe) adsorbed 76% and 90% of ATP pesticide and EY dye, respectively after 10 to 15 min in optimum conditions. For both adsorbents, with regard to explaining the isotherm data, the Langmuir model offered the most accurate description. Moreover, the adsorption of ATP and EY dye is described by the pseudo-second-order kinetic model. The maximum adsorption capacities of ATP and EY dye on MIL-101(Fe) were 57.6 and 48.9 mg/g compared to 70.5 and 97.8 mg/g using NH2-MIL-101(Fe). The greatest amount of ATP and EY dye clearance was obtained at a neutral medium for both adsorbents. The results of this investigation demonstrate the effectiveness of MIL-101(Fe) and NH2-MIL-101(Fe) as effective substances in the adsorption process for removing pesticides and dyes from aqueous solution.

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Section: Introductionmentioning

confidence: 99%

Effective removal of acetamiprid and eosin Y by adsorption on pristine and modified MIL-101(Fe)

Sakr,

Adly,

Gar Alalm

et al. 2024

Environ Sci Pollut Res

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“…To date, advanced oxidation processes (AOPs) can remove recalcitrant pharmaceuticals by generating insatiable reactive oxidant species (ROS), including superoxide and hydroxyl radicals, along with holes [6][7][8]. Photo-Fenton [9], Fenton and Fenton-like reactions [10], electrochemical oxidation (EO) [11], ozonation [12], and photocatalysis [13] are examples of successful SMZ degradation by AOPs.…”

Section: Graphical Abstract 1 Introductionmentioning

confidence: 99%

Novel MIL-53(Fe)/ZnO nanocomposite mediated by persulfate in photocatalytic degradation of sulfamethazine under visible light

Mahanna,

Fawzy,

Mossad

2023

Environmental Engineering Research

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This work aims to address some significant restrictions on the use of photocatalysis, including high e-/h+ recombination rate, and semiconductors with wide-band energy resulting in limited visible-light harvesting. Herein, we apply a novel hierarchical MIL-53(Fe)/ZnO nanocomposite for the degradation of sulfamethazine in the presence of persulfate under visible light irradiation. The ultrafine nanocomposite MIL-53(Fe)/ZnO was obtained by synthesizing Zn-free MIL-53Fe and employing it as a reactive template under a hydrothermal process. A set of experiments with a Box Behnken design was conducted to optimize the operating parameters by response surface method (RSM). Complete degradation of 10 mg/L of SMZ was attained after 30 min under the optimum operational conditions (catalyst dose = 0.2 g/L, pH = 3, and persulfate loading = 0.39 g/L). The SMZ degradation followed the Langmuir-Hinshelwood model. In addition, about 78% TOC removal was observed under the optimum conditions. Also, it was proven that MIL-53(Fe)/ZnO had high photostability after being reused for five successive cycles. A possible degradation pathway of SMZ was proposed based on the detection results of intermediates by LC-MS/MS, suggesting that the cleavage of the S-N bond and subsequent removal of sulfone moiety was the primary degradation pathway.

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Overview of the Mechanism of Degradation of Pharmaceuticals by Persulfate/Peroxysulfate Catalysts

Anjorin,

Alfred,

Sotunde

et al. 2024

ChemBioEng Reviews

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The leaching of pharmaceutical ingredients into water bodies poses an escalating threat, demanding urgent remediation strategies. Among several techniques advanced for their remediation, advanced oxidation methods utilizing persulfate (PS) and peroxymonosulfate (PMS) stand out as promising avenues for pharmaceutical degradation in wastewater. This article consolidates the research on photocatalytic degradation of pharmaceutical contaminants, focusing on PMS‐based photoactive composites, and elucidates their efficacy in removing active pharmaceutical ingredients from water. Moreover, it delineates alternative techniques for activating PS and PMS, providing a holistic understanding of the field's advancements. By outlining research limitations and knowledge gaps, this review underscores the imperative for further investigation and innovation in pharmaceutical wastewater treatment.

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Enhanced catalytic oxidation of reactive dyes by reuse of adsorption residuals as a heterogeneous catalyst with persulfate/UV process

Cited by 11 publications

References 44 publications

Effective removal of acetamiprid and eosin Y by adsorption on pristine and modified MIL-101(Fe)

Effective removal of acetamiprid and eosin Y by adsorption on pristine and modified MIL-101(Fe)

Novel MIL-53(Fe)/ZnO nanocomposite mediated by persulfate in photocatalytic degradation of sulfamethazine under visible light

Overview of the Mechanism of Degradation of Pharmaceuticals by Persulfate/Peroxysulfate Catalysts

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