Synthesis, characterization, and application of Cu-substituted LaNiO3 perovskites as photocatalysts and/or catalysts for persulfate activation towards pollutant removal

Chemosphere, Год журнала: 2024, Номер 352, С. 141477 - 141477

Опубликована: Фев. 20, 2024

Язык: Английский

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Synthesis and Characterization of Composite WO3 Fibers/g-C3N4 Photocatalysts for the Removal of the Insecticide Clothianidin in Aquatic Media

Nanomaterials, Год журнала: 2024, Номер 14(12), С. 1045 - 1045

Опубликована: Июнь 18, 2024

Photocatalysis is a prominent alternative wastewater treatment technique that has the potential to completely degrade pesticides as well other persistent organic pollutants, leading detoxification of and thus paving way for its efficient reuse. In addition more conventional photocatalysts (e.g., TiO2, ZnO, etc.) utilize only UV light activation, interest scientific community recently focused on development application visible light-activated like g-C3N4. However, some disadvantages g-C3N4, such high recombination rate photogenerated charges, limit utility. this light, present study focuses synthesis WO3 fibers/g-C3N4 Z-scheme heterojunctions improve efficiency g-C3N4 towards photocatalytic removal widely used insecticide clothianidin. The effect two different precursors (urea thiourea) fiber content properties synthesized composite materials was also investigated. All aforementioned were characterized by number techniques (XRD, SEM-EDS, ATR-FTIR, Raman spectroscopy, DRS, etc.). According results, mixing 6.5% W/W fibers with either urea or thiourea derived significantly increased activity resulting composites compared precursor materials. order further elucidate most photocatalyst in degradation clothianidin, generated transformation products tentatively identified through UHPLC tandem high-resolution mass spectroscopy. Finally, process assessed combining results an in-vitro methodology predictions in-silico tools.

Язык: Английский

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Enhanced photocatalytic degradations of various pharmaceuticals: Analysis and degradation mechanisms

Advances in chemical engineering, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Photocatalytic Removal of the Antibiotic Furazolidone Using g-C3N4 in the Presence of Persulfates Under Lab and Pilot Scale Conditions

Water, Год журнала: 2025, Номер 17(4), С. 602 - 602

Опубликована: Фев. 19, 2025

Furazolidone, a nitrofuran antibiotic, has been broadly used in aquaculture and veterinary medicine, its presence water poses considerable environmental health hazards due to toxicity. This study investigated hybrid photocatalytic process for the removal of furazolidone, employing graphitic carbon nitride (g-C3N4) persulfate anions (PS) under both laboratory pilot-scale conditions. The synergistic effect g-C3N4 PS enhanced generation reactive species, facilitating efficient degradation FZ two different aqueous matrices. Through scavenging studies, positive holes were determined be dominant followed by sulfate radicals. Seven transformation products tentatively identified via UHPLC-LTQ/Orbitrap MS analysis. optimized system (g-C3N4/PS) achieved 100% furazolidone less than 60 min simulated solar light, demonstrating potential large-scale application wastewater remediation. Furthermore, experiments using real secondary treated municipal proved that applied is capable achieving an 86.2% (k = 0.017 min−1) as well 90% decrease effluent ecotoxicity within 120 UVA irradiation. provides insights into sustainable processes antibiotic contaminants from underscores role g-C3N4-based approaches upper-scale applications.

Язык: Английский

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Photocatalytic degradation of the antidepressant drug Paroxetine using TiO₂ P-25 under lab and pilot scales in aqueous substrates

Water Emerging Contaminants & Nanoplastics, Год журнала: 2025, Номер 4(1)

Опубликована: Фев. 26, 2025

Pharmaceuticals in water bodies are a significant threat to aquatic life and human health, often persisting due incomplete degradation conventional wastewater treatment plants (WWTPs). Heterogeneous photocatalysis is promising method for efficiently treating (WW). TiO2 P-25, well-known photocatalyst, has been widely used remove persistent organic pollutants (POPs) from media, primarily on laboratory scale. In this study, the photocatalytic removal of Paroxetine (PXT), an antidepressant drug, investigated at lab scale pilot using compound parabolic collector (CPC) reactor (85 L) working batch recirculating mode secondary treated hospital (HWW) as substrate different catalyst concentrations (200, 300, 500 mg/L). The experiments achieved fastest PXT with mg/L, while tests found 200 mg/L be optimal. Thirteen transformation products (TPs) were identified liquid chromatography-high-resolution mass spectrometry (LC-HR-MS-Orbitrap), their ecotoxicity was assessed ECOSAR software, indicating they less toxic than PXT. T.E.S.T. software showed most TPs not mutagenic but displayed developmental toxicity. Toxicity assessments Microtox bioassay demonstrated that toxicity eliminated by end treatment. conclusion, study provides integrative approach PXT, integrating lab-scale pilot-scale experiments, pure real WW matrices, environmentally relevant concentrations, TPs’ identification along assessment both in-silico in-vitro , which followed previous studies dealing pollutants.

Язык: Английский

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Homogeneous solvent-based microextraction method (HSBME) using a task-specific ionic liquid and its application to the spectrophotometric determination of fluoxetine as pharmaceutical pollutant in real water and urine samples

Chemical Papers, Год журнала: 2024, Номер 78(15), С. 8195 - 8210

Опубликована: Авг. 23, 2024

Язык: Английский

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In-situ self-assembly of Z-scheme TiO2/g-C3N4 heterojunction enhanced visible-light photocatalytic performance for degrading phenolic pollutants

Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 130977 - 130977

Опубликована: Дек. 1, 2024

Язык: Английский

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