Degradation Efficiency of Organic Dyes on CQDs As Photocatalysts: A Review

ACS Omega, Journal Year: 2024, Volume and Issue: 9(9), P. 10017 - 10029

Published: Feb. 26, 2024

Across the globe, task of providing clean and safe drinking water is getting harder. Organic contaminants, including dyes pharmaceutical medications, are a significant environmental threat, especially in aquatic bodies due to their uncontrolled emission. Therefore, method for degradation that both environmentally friendly commercially feasible must be developed. In realm photocatalysis, carbon-based nanomaterials have drawn more attention last ten years. Due exceptional distinct qualities, metal-free photocatalytic systems received lot recently ability degrade organic contaminants into semiconductor quantum dots, which already available. A class with particle size between 2 10 nm showing optoelectrical characteristics among variety catalytic dots. This review covers several synthesis techniques such as electrochemical, laser ablation, microwave radiation, hydrothermal, optical features CQDs photoluminescent (PL) property confinement effect. The uses various well difficulties still exist opportunities lie ahead also been explored.

Language: Английский

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In-situ synthesis of AgCl/WO3 loaded with g-C3N4 as dual Z-scheme heterojunction for boosting photocatalytic degradation of antibiotics

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 46, P. 104016 - 104016

Published: Feb. 1, 2024

Language: Английский

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Complete photodegradation of tetracycline induced by surface microenvironment of graphitic carbon nitride/silver phosphate

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112583 - 112583

Published: March 26, 2024

Language: Английский

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Coal-based carbon quantum dots modified Ni-MOF and Co/Zr-MOF heterojunctions for efficient photocatalytic hydrogen evolution

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 70, P. 666 - 676

Published: May 18, 2024

Language: Английский

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Enhanced dye photodegradation through ZnO and ZnO-based photocatalysts doped with selective transition metals: a review

Environmental Technology Reviews, Journal Year: 2024, Volume and Issue: 13(1), P. 754 - 793

Published: Nov. 28, 2024

Disposing of wastewater contaminated with dyes into the environment results in water pollution, which endangers aquatic life and leads to severe health issues for all living species. Zinc oxide-assisted heterogeneous photocatalysis is a significant approach treating dyes. However, its wide energy gap, activated only by UV light, high electron hole pairs recombination rate constrain photocatalytic activities. This review emphasizes impact doping ZnO transition metals non-metals on dye degradation. Both significantly enhances ZnO's photoactivity reducing band shifting absorption edge visible spectrum, producing more oxygen vacancies crystal defects, decreasing conduction electrons valence holes, boosting surface area. The characteristic nanostructures contingent upon their physiological characteristics, including morphology, particle size. It also includes data from literature regarding some dyes' potential degradation pathways mechanisms using ZnO-based photocatalysts. Molecular other reactive species, O2•−, HO2•, H2O2, •OH, produced series reactions, play part degrading effect several operational parameters photodegradation efficiency has been studied detail, solution's pH, concentration, contact time, photocatalyst dose, oxidizing agents, reaction temperature, light intensity. looks at various techniques utilized prepare Future perspectives challenges photocatalysts are discussed.

Language: Английский

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Insights into MXene-based materials for environmental applications: Performance, mechanisms, and future directions

FlatChem, Journal Year: 2025, Volume and Issue: unknown, P. 100825 - 100825

Published: Jan. 1, 2025

Language: Английский

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Coal-based carbon quantum dots modified Ag3PO4/Ni-MOF composites enhanced visible light photocatalytic degradation of phenol

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 48, P. 104319 - 104319

Published: April 16, 2024

Language: Английский

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Visible‐Light‐Induced Photocatalytic Hydrogen Evolution Performance of Graphdiyne‐Alkyne Phosphating Mo–Metal‐Organic Frameworks Heterojunction

Solar RRL, Journal Year: 2024, Volume and Issue: 8(9)

Published: March 13, 2024

Herein, the application of graphdiyne (GDY) in photocatalytic splitting water and hydrogen evolution is explored. In this article, GDY prepared by ball milling using calcium carbide as raw material, it compounded with phosphating Mo–metal‐organic frameworks (MOFs), to explore performance mechanism composite catalysts. results, shown that P–Mo–MOFs (PMF)/G‐25 photocatalyst has best activity, rate highest at pH = 9, reaching 1668.5 μmol g −1 h . Through four‐cycle cycle stability test, PMF/G‐25 composites still good stability. It combination Mo–MOFs can enhance activity excellent performance. Mott–Schottky found PMF are n‐type semiconductors. The conduction valence values −0.56 1.10 eV for GDY, −0.68 0.97 PMF, respectively. analyzed, speculated S‐Scheme heterojunction formed between further promote evolution.

Language: Английский

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Novel Zirconium Aminophosphates nanowires and superior photocatalytic activities under visible light degradation

Optik, Journal Year: 2024, Volume and Issue: unknown, P. 171631 - 171631

Published: Jan. 1, 2024

Language: Английский

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Construction of graphdiyne/CoMoO4 type II heterojunction for efficiently enhanced photocatalytic hydrogen evolution

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112900 - 112900

Published: April 27, 2024

Language: Английский

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