A Systematic Review of Polluting Processes Produced by the Textile Industry and Proposals for Abatement Methods

Textile & Leather Review, Journal Year: 2024, Volume and Issue: 7, P. 88 - 103

Published: Jan. 19, 2024

The textile industry is one of the most polluting industries worldwide because its processes that entail excessive use water and chemicals, resulting in effluents that, turn, are not treated controlled correctly. This review aims to identify efficient methods reduce footprint. PICO method was used define search equation obtain studies based on topic, a total 4783 articles; then, PRISMA statement carefully select studies, which 32 articles met inclusion criteria. industry's supply chain presents high pollution levels, especially dyeing process, with percentage 33% effluents, since they toxic chemicals such as ammonia, sulphide, lead. Therefore, study analyzes physical (hydrodynamic cavitation flocculation), (electrocoagulation, EC-EO, EC-EF), biological (degradation assisted by bacteria) treat wastewater. After analysis above for treating wastewater, electrocoagulation combined electro-oxidation (EC-EO) obtained highest efficiency rate 88% COD removal 100% colour removal.

Language: Английский

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Rational Design and Synthesis of Fe-Doped Co-Based Coordination Polymer Composite Photocatalysts for the Degradation of Norfloxacin and Ciprofloxacin

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(14), P. 6514 - 6525

Published: March 28, 2024

The solar light-responsive Fe-doped Co-based coordination polymer (Fe@Co-CP) photocatalyst was synthesized under mild conditions. [Co(4-padpe)(1,3-BDC)]n (Co-CP) first constructed using mixed ligands through the hydrothermal method. Then, Fe introduced into Co-CP framework to achieve enhanced photocatalytic activity. optimal Fe@Co-CP-2 exhibited excellent catalytic degradation performance for norfloxacin and ciprofloxacin sunlight irradiation without auxiliary oxidants, rates were 91.25 92.66% in 120 min. These properties ascribed generation of Fe–O bond, which not only light absorption intensity but also accelerated separation efficiency electrons holes, hence significantly improved property composites. Meanwhile, displayed stability reusability. In addition, pathways intermediates antibiotic molecules effectively analyzed. free radical scavenging experiment ESR results confirmed that •OH, •O2–, h+ active species involved reaction; corresponding mechanisms deeply investigated. This study provides a fresh approach constructing Co-CP-based composite materials as photocatalysts contaminants.

Language: Английский

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Boosted Photocatalytic Performance for Antibiotics Removal with Ag/PW12/TiO2 Composite: Degradation Pathways and Toxicity Assessment

Molecules, Journal Year: 2023, Volume and Issue: 28(19), P. 6831 - 6831

Published: Sept. 27, 2023

Photocatalyst is the core of photocatalysis and directly determines photocatalytic performance. However, low quantum efficiency utilization solar energy are important technical problems in application photocatalysis. In this work, a series polyoxometalates (POMs) [H3PW12O40] (PW12)-doped titanium dioxide (TiO2) nanofibers modified with various amount silver (Ag) nanoparticles (NPs) were prepared by utilizing electrospinning/photoreduction strategy, labelled as x wt% Ag/PW12/TiO2 (abbr. x% Ag/PT, = 5, 10, 15, respectively). The as-prepared materials characterized techniques exhibited remarkable catalytic activities for visible-light degradation tetracycline (TC), enrofloxacin (ENR), methyl orange (MO). Particularly, 10% Ag/PT catalyst specific surface area 155.09 m2/g an average aperture 4.61 nm possessed optimal photodegradation performance, efficiencies reaching 78.19% TC, 93.65% ENR, 99.29% MO, which significantly higher than those PW12-free Ag/TiO2 PT nanofibers. Additionally, parameters (the pH solution, usage, TC concentration) influencing process investigated detail. conditions follows: usage: 20 mg; TC: mL ppm; 7. Furthermore, intermediates pathways demonstrated HPLC-MS measurement. We also toxicity products generated during removal employing quantitative structure-activity relationship (QSAR) prediction through estimation software tool (T.E.S.T. Version 5.1.2.). mechanism study showed that doping PW12 modification Ag NPs on TiO2 broadened absorption, accelerating effective separation photogenerated carriers, therefore resulting enhanced research provided some new thoughts exploiting efficient durable photocatalysts environmental remediation.

Language: Английский

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Aloe vera Extract-Based Carbon Quantum Dots-Modified Mixed-Phase TiO₂ Nanoflowers for Photocatalytic Degradation of Benzo(a)pyrene in Smoked Sausages and Smoke Environments

Journal of Agricultural and Food Chemistry, Journal Year: 2025, Volume and Issue: 73(9), P. 5511 - 5525

Published: Feb. 20, 2025

To remove benzo(a)pyrene (B(a)P) from smoked meat products and smoky environments, carbon quantum dots (CQDs)-modified TiO2 nanoflowers (TiO2-CQDs) have been considered an effective method. The excellent photocatalytic performance of the TiO2-CQDs was attributed to their broad surface separation photogenerated carriers. DFT calculations adequately confirmed preparation explained chemical bonding interactions adsorption energies. In addition, films (TCFs) based on were prepared, which demonstrated activity capacity for degrading B(a)P. application reduced B(a)P in sausages by 49.7-70.9%, respectively, PM2.5-B(a)P emitted into atmosphere 69.8%. Finally, degradation pathways intermediates analyzed detail, toxicities evaluated. This method has practical applications controlling foods environments.

Language: Английский

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A Comprehensive Review on Metal Oxide‐based Nanomaterials: Synthesis, Characterization, Environmental, and Therapeutic Applications

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(11)

Published: March 1, 2025

Abstract Metal oxide‐based nanomaterials have gained attention due to their unique properties and wide applications in numerous fields including environmental remediation intervention therapy. This paper provides a comprehensive overview of the synthetic methods, characterization strategies, therapeutic metal NPs. Diverse routes advantages controlling nanostructure size, shape, morphology nanostructures thus, tailoring specific techniques such as X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), Fourier transform infrared spectroscopy (FTIR) provide information about crystallite morphology, surface chemistry, optical properties. These NPs potential for identification elimination hazardous gases, heavy metals like arsenic, iron, manganese, so on. along with organic pollutants biological contaminants viruses, bacteria, fungi. The medicinal utility metal‐oxide‐based has also been disseminated, particularly role antibacterial, antifungal, anticancer agents. may be attributed high area (surface‐to‐volume ratio) reactivity. They find clinical medicine especially drug delivery biomedical imaging. Their biocompatibility, controlled release kinetics ability target cells or tissues make them more effective than conventional drugs.

Language: Английский

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CdSe Capped Fe3O4 Heterostructured Nanoparticles for Efficient Degradation of Methylene Blue Dye Under Natural Sunlight

Journal of Cluster Science, Journal Year: 2025, Volume and Issue: 36(3)

Published: April 4, 2025

Language: Английский

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Iron-modified titanate nanotube arrays photoelectrode for superior photoelectrocatalytic removal of trichloroethylene

Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2025, Volume and Issue: 172, P. 106117 - 106117

Published: April 6, 2025

Language: Английский

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Revolutionizing Inorganic Nanofibers: Bridging Functional Elements to a Future System

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

The advancement of intelligent ecosystems depends upon not only technological innovation but also a multidimensional understanding material-world interactions. This theoretical transformation prompts increasing demands for multifunctional materials exhibiting hierarchical organization across multiple length scales. Inorganic nanofibers demonstrate potential in bridging the gap between microscale and macroscale through their three-dimensional architectures. However, inherent brittleness, primarily resulting from inferior structural integrity poses, significantly limits current applications. critical limitation highlights urgent necessity developing fabrication strategies that simultaneously enhance mechanical flexibility robustness, ensuring reliable performance under extreme operational conditions. comprehensive review systematically examines brittle mechanism fracture multiscale analysis including molecular, nanoscale, dimensions. It presents innovative methodologies integrating simulation-guided design with advanced situ characterization techniques capable real-time monitoring practical stress-strain process. Furthermore, discussion progresses to address contemporary challenges emergent solutions oxide nanofiber engineering, providing strategic insights mechanically robust flexible systems stable functional properties. Ultimately, this inorganic overcome limitations nano powder achieve promising real-world

Language: Английский

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High photocatalytic activity and stability of MnV2O6 and Mn2V2O7 synthesized by simple low temperature method for bromophenol blue degradation

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2023, Volume and Issue: 444, P. 114922 - 114922

Published: June 10, 2023

Language: Английский

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Selective electrocatalytic oxidation of ammonia to nitrogen by using titanium dioxide nanorod array decorated with ultrasmall Ir nanoparticles and non-noble metal Fe nanoparticles

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 348, P. 127808 - 127808

Published: May 4, 2024

Language: Английский

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