A comparative study on the degradation of carbamazepine by UV laser/chlorine and UV laser/PS processes: Performance and mechanisms

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149496 - 149496

Published: Feb. 28, 2024

Language: Английский

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Highly dispersed FeN-CNTs heterogeneous electro-Fenton catalyst for carbamazepine removal with low Fe leaching at wide pH

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 474, P. 145681 - 145681

Published: Aug. 29, 2023

Language: Английский

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Bio-based Au Doping with Dominant Oxygen Vacancies and Ti³⁺ Defects on Photocatalytic Functionalities of TiO₂

Industrial & Engineering Chemistry Research, Journal Year: 2023, Volume and Issue: 62(48), P. 20702 - 20715

Published: Nov. 20, 2023

The presence of pharmaceutically active compounds (PhACs) in waterways is a growing environmental concern. In fact, this an open challenge for scientists to develop effective treatment technology the abatement pollution caused by PhACs. Herein, we have developed novel bio-based and pH-independent steamed autoclaving method synthesizing Au-doped TiO2 using vegetal analytes present inSechium edule. Au doping introduced new free excitons shallow traps AuNPs, Ti3+ oxygen vacancies facilitated extended absorption range, better change transfer (charge resistance, 15.60 → 5.77 kΩ), surface hydrophilicity (water contact angle 16.8°) enhanced visible-light-driven photocatalytic functionalities. took place two steps as Au(III) Au(I) Au(0). Both conduction valence bands were shifted with reduced band gap 2.45 eV (from 3.29 eV) Au1.00/TiO2(bio) (Au 1.00% w/w). With doping, crystal size was increased, decrease lattice strain dislocation density noted. exhibits increased electron density, facilitating charge evidenced from X-ray photoelectron spectroscopy analysis. exhibited four-fold higher photocurrent (64.70 nA/cm2) than that Au0.00/TiO2(bare). optimally doped achieved 1.2–1.5-fold chloroquine (CLQ) degradation (94.59 ± 1.23%) 1.5–1.9-fold TOC removal (69.57%) Au0.00/TiO2(bare) Au1.00/TiO2(chemically doped). reused showed more 90% three successive cycles, which decreased 78.18% during fifth cycle. CLQ photodegraded different pathways forming 16 intermediates supported mass spectroscopic assay.

Language: Английский

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Enhanced hydrogen peroxide production and organic substrates degradation using atomically dispersed antimony P-doped carbon nitride photocatalysts

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 48, P. 104143 - 104143

Published: March 4, 2024

Language: Английский

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Nanosecond pulsed discharge with plasma-functionalized TiO₂ for the high efficiency degradation of tetracycline

Journal of Physics D Applied Physics, Journal Year: 2024, Volume and Issue: 57(25), P. 255201 - 255201

Published: March 14, 2024

Abstract Non-thermal plasma coupling with photocatalyst is recognized as a promising technology for the degradation of antibiotics, and improving performance one most significant strategies to improve efficiency plasma-catalytic systems. This study employed nanosecond pulsed gas–liquid discharge coupled plasma-functionalized TiO 2 achieve high tetracycline clarify synergistic mechanism pulse functionalized . Results showed that increased by 20% compared untreated 4 min-plasma treatment. It also suggested effect photogenerated holes electrons can be promoted in , evidenced radical quenching experiments. The plasma-modified catalysts were proven have good stability recyclability. provides new sustainable approach enhance photocatalysts system environmental remediation.

Language: Английский

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Peroxysulfur species-mediated enhanced oxidation of micropollutants by ferrate(VI): Peroxymonosulfate versus peroxydisulfate

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 475, P. 134871 - 134871

Published: June 9, 2024

Language: Английский

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Few-layer MoS2 nanosheets modified by PEG for enhanced piezoelectric catalysis degradation of carbamazepine

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154631 - 154631

Published: Aug. 7, 2024

Language: Английский

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Enhanced peroxymonosulfate activation for carbamazepine degradation under strongly alkaline conditions using Cu-doped Mn3O4 catalyst: Characterization, catalytic performance, and mechanism insights

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 429, P. 139600 - 139600

Published: Nov. 3, 2023

Language: Английский

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Linking conventional activated sludge treatment plant performances for micropollutants removal to environmental risk and SimpleTreat model assessment

International Journal of Environmental Science and Technology, Journal Year: 2024, Volume and Issue: 21(11), P. 7373 - 7386

Published: March 4, 2024

Abstract The attention to the contaminants of emerging concerns or micropollutants is continuously rising, also stimulated by new initiatives at European level. present study focuses on removal target in a conventional activated sludge wastewater treatment plant which most common system and considered source environment. aims were evaluate efficiency different stages conduct Environmental Risk Assessment final effluent. As indicated European’s guidelines Assessment, SimpleTreat4.1 model was applied this purpose: values biodegradation constant, represents key factor for modelling, applied, effects quality prediction evaluated. evaluations carried out thorough 3-year monitoring activity full-scale 10 belonging classes illicit drugs, pharmaceuticals psychoactive. found statistically not satisfactory investigated micropollutants. A better obtained when constant calculated based data. Nonetheless, results terms risk acceptable comparable among each other. Graphical abstract

Language: Английский

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Optimization of the Photo-Fenton process for the effective removal of chemical oxygen demand and phenols in portable toilet wastewater: A treatment study under real world conditions

Heliyon, Journal Year: 2024, Volume and Issue: 10(15), P. e35286 - e35286

Published: July 26, 2024

Language: Английский

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