Functionalized MXenes for Enhanced Visible-Light Photocatalysis: A Focus on Surface Termination Engineering and Composite Design

Inorganics, Journal Year: 2025, Volume and Issue: 13(2), P. 45 - 45

Published: Feb. 6, 2025

MXenes, a groundbreaking class of two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides, have emerged as highly promising materials for photocatalytic applications due to their unique structural, electrical, surface properties. These are synthesized by selectively etching the A layer from MAX phases, yielding compositions with general formula Mn+1XnTx, where M is metal, X represents carbon or nitrogen, Tx refers terminations such –OH, –O, –F. This review delves into advanced synthesis techniques including fluoride-free molten salt methods, explores potential in photocatalysis environmental remediation. MXenes exhibit remarkable light absorption capabilities efficient charge carrier separation, making them effective degradation organic pollutants under visible light. Modulating chemistry bandgap via functional group modifications further enhances performance. attributes position next-generation sustainable applications, offering significant addressing global challenges.

Language: Английский

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Green Synthesis of ZnO Nanoparticles Using Ficus benghalensis for Visible Light–Driven Photocatalytic Degradation of Crystal Violet and Antibacterial and Antibiofilm Activities

Luminescence, Journal Year: 2025, Volume and Issue: 40(1)

Published: Jan. 1, 2025

ABSTRACT Crystal Violet (CV) is a vibrant and harmful dye known for its toxicity to aquatic life potential carcinogenic effects on humans. This study explores the removal of CV through photocatalysis driven by visible light, as well examining antibacterial antibiofilm characteristics zinc oxide nanoparticles (ZnO NPs) synthesized from aerial roots Ficus benghalensis . Various characterization techniques were employed confirm optical properties, crystal lattices, morphology ZnO NPs. TEM images showed that NPs had spherical shape, with an average size 40 80 nm. The photocatalytic analysis revealed exhibited substantial activity under effectively degrading 90.6% in aqueous solution. was evaluated against clinically relevant bacterial strains such Pseudomonas aeruginosa Bacillus subtilis , revealing notable zones inhibition. Moreover, 96.8 ± 0.5% 98.3 0.3% P. Staphylococcus aureus respectively. In conclusion, this demonstrated sustainable solution wastewater treatment applications.

Language: Английский

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Boosted photo catalytic performance of ternary S-schemeAuAg@FeWO4/Bi2O3 heterojunction via synergy of photothermal-assisted and LSPR effects

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115610 - 115610

Published: Jan. 1, 2025

Language: Английский

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Biogenic nanoparticle based adsorption for chromium contaminated wastewater treatment

Adsorption, Journal Year: 2025, Volume and Issue: 31(2)

Published: Feb. 1, 2025

Language: Английский

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Functionality developments in montmorillonite nanosheet: Properties, preparation, and applications

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156186 - 156186

Published: Sept. 1, 2024

Language: Английский

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Comparative study of zirconium-zinc oxide thin films on ceramic and glass substrates: Structural, optical, and photocatalytic properties

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 171, P. 113561 - 113561

Published: Nov. 15, 2024

Language: Английский

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Construction of Honeycomb-like ZnO/g-C3N5 Heterojunction for MB Photocatalytic Degradation

Processes, Journal Year: 2025, Volume and Issue: 13(1), P. 253 - 253

Published: Jan. 16, 2025

In this study, a combination of calcination and hydrothermal methods was employed to synthesize honeycomb-like ZnO/g-C3N5 (ZCN) heterojunction in situ. The ZCN photocatalyst exhibits remarkable photocatalytic degradation performance, achieving 97% methyl blue (MB) rate with the constant 0.0433 min−1 (almost twice that ZnO). Optical performance tests reveal broadens absorption edge 710 nm enhances charge carrier separation. presence abundant oxygen vacancies, as revealed by X-ray photoelectron spectroscopy analysis, effectively suppresses recombination photogenerated electron–hole pairs. Furthermore, density functional theory simulations indicate ZnO g-C3N5 creates an internal electric field due their differing work functions. This leads formation Z-scheme preserves strong redox capabilities g-C3N5. Finally, electron spin resonance results O2− OH are primary active radicals involved process. study introduces potential approach for development highly efficient photocatalysts water treatment applications.

Language: Английский

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Antibacterial and photocatalytic activities of biosynthesized zinc oxide nanoparticle using novel plant P. macrosolen L. leaf extract

Discover Materials, Journal Year: 2025, Volume and Issue: 5(1)

Published: Jan. 23, 2025

In this study, ZnO nanoparticles were produced by an easy and cost effective approach using P. macrosolen L. leaf extract zinc chloride as Zn ion source. The as-biosynthesized analyzed powder-X-ray diffraction (PXRD), Fourier transform infrared (FTIR) spectroscopy, UV–visible Focused beam-scanning electron microscopy (FIB-SEM) energy dispersive X-ray (EDX) characterization techniques. XRD result revealed the formations of ZnO-nanoparticles with hexagonal structure, spherical like shape average crystalline size 47 nm. presence flavonoids in extracts was confirmed phytochemical tests, indicating that primarily acted reducing agents during nanoparticle formation. FTIR spectrum also broad strong peaks corresponding to –OH groups, confirming high concentration phenolic acids present extract. band gap biosynthesized Nanoparticles, calculated Tauc relation, found be 3.0 eV, a blue shift. FIB-SEM used analyze microstructure identify any aggregations. EDX analysis oxygen, weights 16.33% 83.67%, respectively. disk diffusion test performed on solid agar plates demonstrated substance is against E. coli bacteria antibacterial agent. photocatalytic degradation rate constants optimized samples under visible light are approximately 0.06455 min⁻1 for MO 0.04865 TB, achieving 94.47% 92.34% These rates significantly higher compared unmodified ZnO, which has 0.0075 min⁻1. improvement visible-light performance can attributed formation nanoparticles, arise from matching crystal lattices bands ZnO. Nanoparticles produce excited electrons irradiation. directly transferred conduction (CB), resulting notable performance.

Language: Английский

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The Physical and Chemical Properties of Carbon-supported Biosynthesized ZnO Nanostructure for High-performance Super-capacitor Applications

Natural Product Communications, Journal Year: 2025, Volume and Issue: 20(1)

Published: Jan. 1, 2025

Objectives This research focuses on the green synthesis of ZnO nanostructures using P. macrosolen L. leaf extract and investigates effects calcination temperatures their structural, morphological, optical, electrochemical properties. Methods were synthesized via a green, eco-friendly, time-effective method. Characterizations included P-XRD for phase crystallite size determination, FTIR spectroscopy functional group analysis, FIB-SEM HR-TEM surface morphology, UV-Vis optical properties, tests evaluating super capacitor performance. Results XRD analysis confirmed tetragonal Wurtzite hexagonal nanostructures, with an average 35 nm calculated Debye-Scherrer equation. formation ZnO, while revealed spongy, agglomerated morphology. showed reduction in energy band gap increasing temperatures. Electrochemical demonstrated that calcinated at 580 °C exhibited superior charge/discharge capacities, cycling stability, nearly 100% coulombic efficiency up to 1000 cycles current density 5 A/g, outperforming those prepared 280 480 °C. Conclusion The biosynthesized especially °C, show excellent potential as electrode materials high-performance capacitors due enhanced performance long-term stability.

Language: Английский

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Structural and optical disorder of ecofriendly NiO/ZnO hybrid materials using banana peel and their enhanced photodegradation of methylene blue under the illumination of natural sunlight

Journal of Materials Science Materials in Electronics, Journal Year: 2025, Volume and Issue: 36(4)

Published: Feb. 1, 2025

Language: Английский

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