A novel CuO/Fe2O3/ZnO composite for visible-light assisted photocatalytic oxidation of Bisphenol A: Kinetics, degradation pathways, and toxicity elimination

Shekoohiyan, Sakine; Rahmania, Asieh; Chamack, Masoumeh; Moussavi, Gholamreza; Rahmanian, Omid; Alipour, Vali; Giannakis, Stefanos

doi:10.1016/j.seppur.2020.116821

Cited by 59 publications

(14 citation statements)

References 71 publications

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“…S 2 O 8 2À and NaOCl), the mortality rate decreased after 4 h. However, as per the theoretical expectation, the toxicity should be eliminated within 2 h. So, the experimental observations led to the conclusion that not only the parent compound but also the degraded products possess toxicity that persisted beyond 2 h. Further studies were carried out on various aquatic animals in order to get an insight into the acute and chronic toxicity of degradation products. Shekoohiyan et al (2020) carried out the bioassay test on Daphnia Magna species. The effect of the treated BPA effluent (initial concentration of BPA 20 mg/L) was compared with the untreated one.…”

Section: Toxicity Evaluation Of the Degradation By-productsmentioning

confidence: 99%

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

Nath

Biswas

Pal

2022

Water Science and Technology

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Synthetic organic pollutants emanating continuously in the ecosystem have become a global concern because of their toxicity and persistent nature. Bisphenol A (BPA) is one such pollutant which threatens public health and safety. It is a monomer used in manufacturing plastics, polycarbonate resins, epoxy resins and is a well-recognised endocrine disruptor miming estrogen. BPA leaches into food and beverages stored in containers causing contamination issues. Its widespread exposure and potential toxicity is an environmental health concern. In this review, a systematic investigation has been carried out on the heterogeneous catalysts used for Fenton-like processes for BPA degradation. The Fenton-like reaction is one such reaction that is used for wastewater remediation purposes. The reaction advances through the generation of powerful oxidizing radicals like OH. and SO4•– in the presence of a suitable catalyst. The application of various Fenton catalysts, with their distinguished morphological characteristics, oxidizing properties, toxicity analysis, and the present state of the art of BPA degradation by these catalysts, have been documented in the current work. This review also highlights a few challenges and prospects for analysing degradation products of landfill leachate.

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Section: Toxicity Evaluation Of the Degradation By-productsmentioning

confidence: 99%

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

Nath

Biswas

Pal

2022

Water Science and Technology

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“…74 The effect of catalyst dosage was consistent with the studies reported in the literature. Shekoohiyan et al 75 ). 78 The created hydroxyl and superoxide radicals are highly oxidative and non-selective for the removal of organic components from wastewater.…”

Section: Effect Of Catalyst Dosagementioning

confidence: 99%

Photocatalytic degradation of p‐nitrophenol in wastewater by heterogeneous cobalt supported ZnO nanoparticles: Modeling and optimization using response surface methodology

Akhtar¹,

Akram

Aslam

et al. 2022

Env Prog and Sustain Energy

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In this work, we investigated the photocatalytic degradation of p-nitrophenol using a cobalt (Co)-doped ZnO photocatalyst. The Co-doped ZnO photocatalyst was first prepared through a simple wet impregnation method and subsequently characterized using various qualitative and quantitative techniques. Response surface methodology (RSM) was employed for experimental design and optimization of photocatalytic process. The effects including initial concentration of 4-Nitrophenol [4-NP] in , catalyst dosage, pH and irradiation time were investigated, and RSM suggested a seconddegree polynomial model for abatement of p-nitrophenol from aqueous phase. Under optimized conditions (pH = 5; Irradiation time = 180 min; catalyst dosage = 30 mg; [4-NP] in = 30 mg/L), up to 82% degradation was achieved, signifying the efficacy of the prepared photocatalyst. Moreover, the real case study was employed by incorporating Co-doped ZnO nanocomposite for treatment of real paper wastewater and results showed a considerable photocatalytic activity of Co-ZnO nanocomposites on paper wastewater.

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“…Furthermore, surfacebound and/or Fe 2+ ions react with dissolved oxygen to generate superoxide radicals. The contribution of electrons in the formation of Fe 2+ ions most likely decreases the probability of the recombination of electron-hole and increase hydroxyl radical formation (47). Moreover, oxidation of water molecules by the holes generates HO•.…”

Section: Photo Catalytic Activitymentioning

confidence: 99%

“…These molecules are strongly capable of degrading CV molecules by bonds breakdown and finally cause mineralization. In addition, CV can be eliminated directly from the solution by oxidation using h + at the CuO/Fe2O3/ZnO surface (47).…”

Section: Photo Catalytic Activitymentioning

confidence: 99%

Synthesis of Zinc-Copper-Iron(II, III) Oxide Nanocomposites and their Photocatalytic Efficiency for Crystal Violet Degradation

2021

MJCHEM

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The synthesis, characterization, and application of metal oxide nanocomposites have received increasing interest in the field of nanoscience and technology with several possible opportunities. Nanocomposites containing two or more dissimilar band gaps semiconductors provide exceptional properties to photocatalysts. A simple chemical co-precipitation method was employed to synthesize ZnO:CuO:Fe2O3 mixed metal oxide nanocomposites followed by calcination at 500 0 C. The prepared nanocomposites were characterized by XRD, FTIR, SEM, and TEM. The FTIR and XRD spectra confirmed the characteristic vibrations of ferrite atoms along with Cu-O and Zn-O vibrations. The crystallite particle size calculated by Debye Scherrer formula matched the size obtained by SEM and TEM images. The photocatalytic efficiency of the ZnO:CuO:Fe2O3 nanocomposites was assessed using crystal violet dye in the presence of sunlight. Variation in the concentration of Cu with respect to zinc in the nanocomposites enhanced photodegradation efficiency in this investigation. Our results indicated that the variation in the composition of ternary nanocomposite catalysts influence the competence for dye removal from waste water.

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A novel CuO/Fe2O3/ZnO composite for visible-light assisted photocatalytic oxidation of Bisphenol A: Kinetics, degradation pathways, and toxicity elimination

Cited by 59 publications

References 71 publications

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

Photocatalytic degradation of p‐nitrophenol in wastewater by heterogeneous cobalt supported ZnO nanoparticles: Modeling and optimization using response surface methodology

Synthesis of Zinc-Copper-Iron(II, III) Oxide Nanocomposites and their Photocatalytic Efficiency for Crystal Violet Degradation

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