Generation, properties, and applications of singlet oxygen for wastewater treatment: a review

Environmental Chemistry Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

Language: Английский

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An insight into photo-catalytic degradation mechanism of persistent pollutants with transition metal oxides and their composites: Photocatalysis mechanism, rate affecting parameters, and removal pathways

Catalysis Reviews, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 49

Published: Jan. 6, 2025

Photocatalysis process in pollution control applications has concerned considerable attention given the increasing seriousness of environmental challenges including water, air, and soil. The present review state-of-the-art research focuses on current trends development application transition metal oxides [TMOs]-based photocatalysis systems to improve removal organic pollutants from wastewater photocatalytic mechanisms. For easy understanding, up-to-date progress construction design heterojunction such as Type I/Type II heterojunction, p-n p-n-p Z-scheme C-scheme have been defined detail into four categories based TMOs composition mode application. This detailed assessment supported suspended catalysts, their specific need, methodologies for performance evaluation, main factors that influence mechanism. In addition, all possible advanced fundamental mechanisms dye degradation, especially azo dye, triphenylmethane, indigo with different are summarized. researcher's approaches how they successfully solve drawbacks well future TMOs-based discussed.

Language: Английский

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Elimination of PPCPs using ozonation-assisted electrochemical filtration with a Ti3C2Tx/CNTs membrane electrode: Performance, mechanisms, and application potential

Process Safety and Environmental Protection, Journal Year: 2025, Volume and Issue: unknown, P. 106841 - 106841

Published: Jan. 1, 2025

Language: Английский

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Green-Activated Charcoal-Anchored Iron Oxide-Driven Microbial Electro-Fenton System for Sustainable Mitigation of Refractory Contaminants

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(9), P. 4129 - 4139

Published: Aug. 1, 2024

The contamination of natural water bodies with dyes and other refractory compounds is a menacing issue in developing nations. Despite stringent laws, industrial effluent not managed efficiently, as it incurs additional cost. Hence, the present research focuses on sustainable mitigation contaminants using self-driven bioelectro-Fenton (BEF) system. iron-activated charcoal (Gt-Fe/AC) cathode-cum-Fenton catalyst used this investigation was synthesized waste green tea extract biogenic agent. catalyst-driven BEF system (Gt-Fe/AC-MFC) achieved maximum power density 111.7 ± 3.1 mW/m2 operating voltage 108 3 mV, while parallelly degrading 20 mg/L Coomassie Brilliant Blue (CBB) dye almost entirely 300 min at neutral pH. Additionally, high removal Congo red (96.8 1.2%) methylparaben (90.9 0.6%) attained under similar conditions. Moreover, Fe-AC-catalyzed performed fairly well treating spiked real wastewater exhibited remarkable stability, only 3% decrease CBB efficiency after 10 continuous cycles 0.11% drop cathodic current per cycle. can be oxidative technology to tackle resource-constricted regions.

Language: Английский

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Once through continuous mode electrocoagulation for tannery wastewater remediation: Process optimization and performance evaluation

Journal of the Indian Chemical Society, Journal Year: 2024, Volume and Issue: 101(8), P. 101212 - 101212

Published: June 6, 2024

Language: Английский

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Anodic electrooxidation of textile wastewater by using spray coating Ti/TiO2-RuO2-IrO2 anode: Response surface optimization of the process

Journal of the Indian Chemical Society, Journal Year: 2025, Volume and Issue: unknown, P. 101595 - 101595

Published: Jan. 1, 2025

Language: Английский

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In Situ Growth of Iron‐Based MOFs on Carboxylated Cotton Fabrics for Removal of Rhodamine B by Photocatalysis

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(3)

Published: Feb. 5, 2025

ABSTRACT There are tremendous potential in utilizing metal–organic frameworks (MOFs) for enhancing the removal of organic dyes from wastewater. However, recovery powdered catalysts poses a significant challenge. In this study, four different iron‐based (Fe‐MOFs) were synthesized by growing them situ on carboxylated cotton fabrics. Scanning electron microscopy (SEM), X‐ray diffraction (XRD), and photoelectron spectroscopy (XPS) employed to conduct comprehensive characterization Fe‐MOFs. The dye rate Fe‐MOF@Cotton was meticulously determined comprehensively investigating various factors including concentration hydrogen peroxide (H 2 O ), pH value solution, temperature. Extensive catalytic degradation experiments conducted assess performance Fe‐MOF@Cotton. results vividly demonstrated that Rhodamine B (RhB) photocatalytically degraded with remarkable efficiency presence H . Notably, MOF fabric composites capable degrading over 97% RhB 20 mg/L. Moreover, these exhibited excellent reusability, strongly indicating their application wastewater treatment industry. This not only highlights effectiveness but also offers promising avenue addressing challenges associated dye‐contaminated treatment.

Language: Английский

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Catalytic behaviour of iron-based nanomaterials for the remediation of hazardous chemicals from wastewater: A Review

Journal of Physics and Chemistry of Solids, Journal Year: 2025, Volume and Issue: unknown, P. 112735 - 112735

Published: March 1, 2025

Language: Английский

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Semiconductor-Based Photoelectrocatalysts in Water Splitting: From the Basics to Mechanistic Insights—A Brief Review

Materials, Journal Year: 2025, Volume and Issue: 18(9), P. 1952 - 1952

Published: April 25, 2025

Hydrogen and oxygen serve as energy carriers that can ease the transition of due to their high densities. Nonetheless, production processes entail development efficient low-cost storage conversion technologies. In this regard, photoelectrocatalysts are materials based on photoelectronic effect where electrons holes interact with H2O, producing H2 O2, in some cases, is achieved acceptable efficiency. Although there several reviews topic, most them focus traditional semiconductors, such TiO2 ZnO, neglecting others, those non-noble metals organic ones. Herein, semiconductors like CdSe, NiWO4, Fe2O3, others have been investigated compared terms photocurrent density, band gap, charge transfer resistance. addition, brief review aims discuss mechanisms overall water-splitting reactions from a photonic point view subsequently discusses engineering material synthesis. Advanced composites also addressed, WO3/BiVO4/Cu2O CN-FeNiOOH-CoOOH, which demonstrate efficiency by delivering densities 5 mAcm−2 3.5 mA cm−2 at 1.23 vs. RHE, respectively. Finally, authors offer perspectives list main challenges experience developing semiconductor-based applied fields. manner, provides advances these topics, used references for new directions designing active photoelectrocatalytic water splitting.

Language: Английский

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Data-Based Modeling, Multi-Objective Optimization, and Multi-Criterion Decision-Making to Maximize the Electro-Oxidation of Metoprolol over Boron-Doped Diamond Electrodes in a Flow-By Reactor

Processes, Journal Year: 2024, Volume and Issue: 12(9), P. 1958 - 1958

Published: Sept. 12, 2024

Metoprolol is a cardioselective beta-blocker drug often used to treat hypertension, but it considered as hazardous organic persistent contaminant in wastewater. In this study, 2.5 L solution of metoprolol (50 mg/L) underwent electro-oxidation flow-by reactor using boron-doped diamond electrodes the batch recirculation mode. The study multi-objective optimization and multi-criterion decision-making determine optimal operating parameters. response surface methodology central composite rotatable design were with three factors (pH0: 5–8, I: 2.5–4 A, Q: 0.8–1.7 L/min) model chemical oxygen demand’s (COD’s) removal efficiency total carbon’s (TOC’s) efficiency. experimental responses modeled by reduced third- second-order polynomials determination coefficients (R2) 0.9816 0.9430. parameters found be pH0 5, an I value 3.84 Q 0.8 L/min electrolysis time 7.5 h, resulting maximum COD 60.8% TOC 90.1%. specific energy consumption was calculated 9.61 kWh/mg TOC, cost 0.77 USD/L. conclusion, showed that electrochemical process efficient reliable for treating wastewater containing metoprolol.

Language: Английский

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