Full carbon upcycling of organophosphorus wastewater enabled by interface photolysis

Huang, Zhuochun; Huang, Jinshu; Liu, Tengyu; Wen, Yu; Wu, Hongguo; Yang, Song; Li, Hu

doi:10.1016/j.cej.2024.149987

Cited by 9 publications

(3 citation statements)

References 64 publications

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“…However, the use of AS alone as the Fenton catalyst source, comprising aluminum in excess relative to iron, resulted in an oxidation rate less than that for the magnetite-based system. This could be due to the decline in the amount of OH radicals produced by the system, since the aluminum-based Fenton system is less active than the iron-based system [24]. However, the co-existence of magnetite and alum sludge with chitosan in the dewatered and conditioned alum sludge led to a higher efficiency due to the hybrid characteristics of the composite material.…”

Section: The Effect Of the As-chmn Composite Concentrationmentioning

confidence: 99%

“…Of great urgency worldwide is the replacement of toxic and highly concerning chemicals with ecologically benign substances. As a part of this concept, the incorporation of new environmentally benign substances, especially in waste management strategies, is gaining further attention and interest due to modernization [22][23][24]. For instance, the use of magnetic materials has shown pronounced effects on treatments, such as magnetic composites integrated with plasmatic metals [23], biometric urchin-like photocatalysts [24], and metal-organic frameworks [16,19].…”

Section: Introductionmentioning

confidence: 99%

“…As a part of this concept, the incorporation of new environmentally benign substances, especially in waste management strategies, is gaining further attention and interest due to modernization [22][23][24]. For instance, the use of magnetic materials has shown pronounced effects on treatments, such as magnetic composites integrated with plasmatic metals [23], biometric urchin-like photocatalysts [24], and metal-organic frameworks [16,19]. Ferrites decorated with various metals such as zinc and alumina have shown positive effects on eliminating dyes contained in wastewater [20].…”

Section: Introductionmentioning

confidence: 99%

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Environmental Win–Win Management: Using Aluminum-Based Solid Waste for Synozol Red-KHL Dye Oxidation

Nour,

Elsayed,

Tony

2024

ChemEngineering

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The awareness of the concept of the “Circular Economy” is motivating scientists to convert drinking water treatment plant by-products, which are based on aluminum waste, into a valorized material for wastewater treatment. Alum sludge from a local waterworks plant in Egypt was collected and dewatered using chitosan-coated magnetic nanoparticles. The role of the conditioned sludge in wastewater treatment was then examined. Chitosan (Ch) augmented with magnetite nanoparticles (MNs), labeled as ChMNs, was prepared by means of a simple co-precipitation route with mixing ratios of 1:1, 2:1, and 3:1 of chitosan and magnetite nanoparticles to form the ChMN catalyst. The ChMNs were shown to beneficially enhance alum sludge conditioning and dewaterability. The conditioned and dried aluminum-based sludge (AS) loaded with ChMNs was then used as a source of Fenton’s catalyst for Synozol Red-KHL textile dyeing wastewater. The characteristics of the AS-ChMN sample were investigated using Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The photocatalytic activity of the AS-ChMN composite was assessed by examining its diffuse reflectance spectra (DRS). Response surface methodological analysis was applied to optimize the operational parameters in order to reduce the use of chemicals and improve dye oxidation to form a complete (99%) dye oxidation strategy. The experiments demonstrated that the optimal operating parameters included doses of 1.5 g/L and 420 mg/L for AS-ChMNs and hydrogen peroxide, respectively, as a source of Fenton’s reaction at a working pH of 3.5. Kinetic and thermodynamic analyses for potential full-scale applications were conducted, showing the reaction to be exothermic and spontaneous in nature and following second-order reaction kinetics. Hence, the novelty of this work lies in the introduction of conditioned and dewatered alum sludge waste as a photocatalyst for textile dye effluent oxidation, which could be considered a “win–win” strategy.

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Section: The Effect Of the As-chmn Composite Concentrationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Environmental Win–Win Management: Using Aluminum-Based Solid Waste for Synozol Red-KHL Dye Oxidation

Nour,

Elsayed,

Tony

2024

ChemEngineering

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Tightly Interfaced Cu₂O with In₂O₃ to Promote Hydrogen Evolution in Presence of Biomass‐Derived Alcohols

Impemba,

Provinciali,

Filippi

et al. 2024

ChemNanoMat

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By a mild and straightforward synthetic protocol in aqueous solution and without surfactants, hierarchical Cu2O nanospheres were grown on preformed In2O3 nanostructures, varying the ratio In:Cu (2.5, 0.5). Accordingly, two different binary compounds In2O3‐Cu2O were prepared and afterwards they were integrated with TiO2 NPs. The ternary composites having a loading of 2.0, 5.0 and 10.0 wt.% respectively of binary In2O3‐Cu2O, were tested as photocatalysts in the solar‐driven production of hydrogen from water, using as sacrificial agents alcohols derived from the biomass. Satisfyingly, the rate of H2 evolution (20.5 mmol/g h) resulted two orders of magnitude higher respect to bare TiO2 (0.2 mmol/g h). Electrochemical impedance spectroscopy and photoluminescence measurements revealed the formation of a tight heterojunction between In2O3 and Cu2O, which is responsible for the improved charge carrier density and transfer and for the diminished electron‐hole recombination.

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Engineering Cr−O−Ti structure towards boosted vinyl chloride destruction: Oxygen species evolution and reaction mechanism

Xu,

Yang,

Tian

et al. 2025

Applied Catalysis B: Environment and Energy

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Full carbon upcycling of organophosphorus wastewater enabled by interface photolysis

Cited by 9 publications

References 64 publications

Environmental Win–Win Management: Using Aluminum-Based Solid Waste for Synozol Red-KHL Dye Oxidation

Environmental Win–Win Management: Using Aluminum-Based Solid Waste for Synozol Red-KHL Dye Oxidation

Tightly Interfaced Cu₂O with In₂O₃ to Promote Hydrogen Evolution in Presence of Biomass‐Derived Alcohols

Engineering Cr−O−Ti structure towards boosted vinyl chloride destruction: Oxygen species evolution and reaction mechanism

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Full carbon upcycling of organophosphorus wastewater enabled by interface photolysis

Cited by 9 publications

References 64 publications

Environmental Win–Win Management: Using Aluminum-Based Solid Waste for Synozol Red-KHL Dye Oxidation

Environmental Win–Win Management: Using Aluminum-Based Solid Waste for Synozol Red-KHL Dye Oxidation

Tightly Interfaced Cu2O with In2O3 to Promote Hydrogen Evolution in Presence of Biomass‐Derived Alcohols

Engineering Cr−O−Ti structure towards boosted vinyl chloride destruction: Oxygen species evolution and reaction mechanism

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Tightly Interfaced Cu₂O with In₂O₃ to Promote Hydrogen Evolution in Presence of Biomass‐Derived Alcohols