The pH dependent surface charging and points of zero charge. X. Update

Advances in Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 319, P. 102973 - 102973

Published: Aug. 8, 2023

Surfaces are often characterized by their points of zero charge (PZC) and isoelectric (IEP). Different authors use these terms for different quantities, which may be equal to the actual PZC under certain conditions. Several popular methods lead results inappropriately termed PZC. This present review is limited zero-points obtained in presence inert electrolytes (halides, nitrates, perchlorates 1st group metals). IEP reported all kinds materials. metal oxides as common intersection potentiometric curves 3 or more ionic strengths (or means equivalent methods) also reported, while apparent mass titration, pH-drift method, etc. deliberately neglected. The published recent publications older overlooked previous compilations same author reported. PZC/IEP accompanied information on temperature nature concentration supporting electrolyte (if available). references reviews allow compare newest with similar materials from literature.

Language: Английский

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MgO-loaded tubular ceramic membrane with spatial nanoconfinement for enhanced catalytic ozonation in refractory wastewater treatment

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 474, P. 134842 - 134842

Published: June 5, 2024

Language: Английский

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Triple heterojunction photocatalytic composites based on CQDs/TiO2@Ti-TPA-MOF/Cu0.5Zn0.5S for visible-light-degradation

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 61, P. 105308 - 105308

Published: April 22, 2024

Language: Английский

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Application of Engineered Nanomaterials as Nanocatalysts in Catalytic Ozonation: A Review

Materials, Journal Year: 2024, Volume and Issue: 17(13), P. 3185 - 3185

Published: June 28, 2024

Given the growing scarcity of water and continuous increase in emerging pollutants detected bodies, there is an imperative need to develop new, more effective, sustainable treatments for wastewater. Advanced oxidation processes (AOPs) are considered a competitive technology treatment. Specifically, ozonation has received notable attention as promising approach degrading organic However, different groups hardly degradable via single ozonation. With development, it been shown that using engineered nanomaterials nanocatalysts catalytic can efficiency by turning this process into low-selective AOP pollutant degradation. Nanocatalysts promote ozone decomposition form active free radicals responsible increasing degradation mineralization pollutants. This work reviews performances homogeneous heterogeneous review focuses on applying metal- carbon-based identifying main future directions type toward wastewater

Language: Английский

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Anticancer Drug Docetaxel in Hospital Effluent: Development of Chromatographic Method, Occurrence, and Degradation via Ozonation

Brazilian Journal of Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Anticancer agents, specifically designed to induce cell death in neoplastic cells, have become increasingly prevalent contaminants various environmental matrices. Their extensive use has resulted their detection across multiple settings, including hospital and pharmaceutical factory effluents, domestic wastewater, surface waters. This study aimed develop an analytical method for determining docetaxel residues effluent using Solid-Phase Extraction (SPE) HPLC-DAD. The SPE demonstrated R² greater than 0.99, with recovery rates reaching 95% RSD of less 2%. LOQ was established at 10.0 μg L−1, no significant matrix effects observed docetaxel. validated deemed suitable its intended application, as all evaluated parameters met the specifications outlined current regulatory guidelines. Docetaxel quantified 29.9 L−1 (±1.3%) one 14 samples collected over a week from Federal University Santa Maria Hospital (HUSM). Given that microbiological treatment system HUSM does not effectively remove this drug, advanced degradation process ozonation investigated. A Dispersive Liquid-Liquid Microextraction (DLLME) developed bench-scale studies subsequently applied assess via real samples. optimized extraction conditions involved 10 mL sample pH 9, ionic strength adjusted Na₂SO₄. Methanol served disperser solvent, while chloroform extracting solvent. achieved removal efficiency exceeding 97% after 60 minutes reaction, under optimal 7 average ozone production rate 1.5 g O₃ h⁻¹. These findings indicate is effective strategy, significantly reducing concentrations within short reaction timeframe.

Language: Английский

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Enhanced metronidazole degradation in water by a novel Cu0 integrated LaNiO3 nanorod and by-products toxicity evaluation

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 71, P. 107113 - 107113

Published: Feb. 5, 2025

Language: Английский

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Comparative study on CeO2 catalysts with different morphologies and exposed facets for catalytic ozonation: performance, key factor and mechanism insight

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 847 - 859

Published: June 15, 2024

Language: Английский

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Adsorption promoted heterogeneous catalytic ozonation for removing emerging contaminations: The intrinsic correlations with biochar properties and complementary effect of adsorption and ozonation processes

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128726 - 128726

Published: July 6, 2024

Language: Английский

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Carbon-Based Materials in Combined Adsorption/Ozonation for Indigo Dye Decolorization in Constrain Contact Time

Molecules, Journal Year: 2024, Volume and Issue: 29(17), P. 4144 - 4144

Published: Aug. 31, 2024

This study presents a comprehensive evaluation of catalytic ozonation as an effective strategy for indigo dye bleaching, particularly examining the performance four carbon-based catalysts, activated carbon (AC), multi-walled nanotubes (MWCNT), graphitic nitride (g-C3N4), and thermally etched nanosheets (C3N4-TE). The investigates efficiency in degrading Potassium indigotrisulfonate (ITS) within constraints short contact times, aiming to simulate real-world industrial wastewater treatment conditions. results reveal that all catalysts demonstrated remarkable decolorization efficiency, with over 99% removed just 120 s mixing time. Besides, delves into mechanisms underlying reactions, elucidating intricate interactions between ozone, molecules processes being influenced by factors such PZC, pKa, pH. Furthermore, experiments were conducted analyze adsorption characteristics on surfaces materials its impact process. MWCNT highest effectively removing 43.4% color 60 s. Although achieved C3N4-TE was 21.4%, which is approximately half less than AC, it noteworthy given significantly lower surface area C3N4-TE.

Language: Английский

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Synergistic insights: electro-organic photocatalysis and nanostructures

Chemical Papers, Journal Year: 2024, Volume and Issue: 78(15), P. 8077 - 8105

Published: Aug. 22, 2024

Language: Английский

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