Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review

RSC Advances, Journal Year: 2023, Volume and Issue: 13(27), P. 18404 - 18442

Published: Jan. 1, 2023

Photocatalysis is a more proficient technique that involves the breakdown or decomposition of different organic contaminants, various dyes, and harmful viruses fungi using UV visible light solar spectrum. Metal oxides are considered promising candidate photocatalysts owing to their low cost, efficiency, simple fabricating method, sufficient availability, environment-friendliness for photocatalytic applications. Among metal oxides, TiO

Language: Английский

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Copper and Copper Nanoparticles Applications and Their Role against Infections: A Minireview

Processes, Journal Year: 2024, Volume and Issue: 12(2), P. 352 - 352

Published: Feb. 7, 2024

The focus of this review article is to present a retrospective analysis copper applications focusing on ions and nanoparticles as broad-spectrum antimicrobials. Copper are presented an alternative rising antibiotic resistance. basic mechanisms bacterial, fungal, viral inactivation, which explain their potential, presented. green biosynthesis using biomaterials also considered very promising trend for future biotechnology medical applications.

Language: Английский

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Synthesis and Characterization of Zinc Oxide Nanoparticles Stabilized with Biopolymers for Application in Wound-Healing Mixed Gels

Gels, Journal Year: 2023, Volume and Issue: 9(1), P. 57 - 57

Published: Jan. 11, 2023

A method for the synthesis of ZnO nanoparticles (ZnO NPs) gels was developed. NPs were obtained through a sol-gel with zinc acetate usage as precursor. Optimization gel has been carried out. It observed that most stable are formed at room temperature, pH = 8 and molar concentration C(Zn2+) 0.05-0.2 M. shown addition polysaccharide significantly affects rheological properties microstructure gels. We found optimal is hydroxyethyl cellulose. stabilized cellulose represented by irregularly shaped particles assembled into aggregates, sizes ranging from 150 to 1400 nm. significant hysteresis region in The process interaction polysaccharides investigated. occurs charged hydroxyl group. In experiment, sample modified tested. pronounced regenerative effect on burn wounds, which higher than control group treated microparticles (MPs) also rate healing wounds animals (group 3) 16.23% 2), 24.33% average entire experimental period 3 1.26 1.54 times 2 group, respectively. An study effectiveness its use modeling skin primary tension.

Language: Английский

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Green synthesis of copper oxide nanoparticles using the Bombax ceiba plant: Biodiesel production and nano-additive to investigate diesel engine performance-emission characteristics

Energy, Journal Year: 2023, Volume and Issue: 274, P. 127345 - 127345

Published: March 27, 2023

Language: Английский

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Green synthesis of copper oxide nanoparticles using okra (Abelmoschus esculentus) fruit extract and assessment of their cytotoxicity and photocatalytic applications

Environmental Technology & Innovation, Journal Year: 2023, Volume and Issue: 32, P. 103300 - 103300

Published: July 25, 2023

In this research, copper oxide nanoparticles (CuO-NPs) were biosynthesized through a simple, quick, and green manner by the exertion of okra (Abelmoschus esculentus) fruit extract as stabilizer reducing agent. TGA/DTA, UV–Vis, DRS, FTIR, XRD, BET, TEM, FESEM/EDX, PSA analyses used to characterize CuO-NPs. The XRD analysis CuO-NPs exhibited monoclinic structure crystallizes in size about 25 nm. optical surface characteristics examined results DRS BET analyses, while their area was observed be 5.6 m2/g. absorption spectra NPs revealed peak at around 320 addition, FESEM/TEM/PSA images displayed spherical shape 20 effectiveness photocatalyst testing ability degrade various dyes under UV light. According outcomes after 210 min, degradation percentages Eriochrome black T (EBT), Rhodamine B (RhB), Methylene blue (MB) approximately 88, 96, 88%, respectively. anticancer efficacy against HeLa cancer cell line 24, 48, 72 h (IC50=1000, 500, 250 μg/mL, respectively) significant, whereas lower cytotoxic effects induced on normal fibroblast L929 when compared that cells. viability cells concentration 1000 μg/mL decreased 74, 71, 65% h,

Language: Английский

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Novel MgO and Ag/MgO nanoparticles green-synthesis for antibacterial and photocatalytic applications: A kinetics-mechanism & recyclability

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2023, Volume and Issue: 449, P. 115398 - 115398

Published: Dec. 12, 2023

Language: Английский

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Green Synthesis, Characterization, and Antibacterial Activity of CuO/ZnO Nanocomposite Using Zingiber officinale Rhizome Extract

Journal of Chemistry, Journal Year: 2023, Volume and Issue: 2023, P. 1 - 15

Published: Aug. 11, 2023

The synthesis of metal oxide nanocomposite by using the green method has gotten special consideration due to a cheaper and eco-friendly approach. Decreasing antibiotic effectiveness calls for fast advancement other alternative antimicrobials. CuO, ZnO, CuO/ZnO nanocomposites were successfully synthesized Zingiber officinale rhizome extract as mild, renewable, nontoxic reducing agent proficient stabilizer with nonappearance hazardous toxic chemicals. UV-Vis spectroscopy, Fourier transform infrared (FT-IR) X-ray diffraction (XRD) used characterize nanocomposites. UV-Visible result showed absorbance peak at 270 nm, 355 365 370 nm corresponding characteristic band CuO NPs, ZnO 10% CuO/ZnO, 20% nanocomposites, respectively. FT-IR confirmed nature bonds presence different functional groups in extract, XRD analysis revealed that all particles have crystalline particle size 4.35 14.54 18.41 20.50 NCs, nanoparticles inhibition against Gram-positive Gram-negative bacteria up concentration 12.5 mg/mL. highest Staphylococcus aureus ATCC 25926 Escherichia coli was 20 ± 0.7 mm 16 0.5 diameter, respectively, 50 mg/mL NCs. In general, biosynthesized effective antibacterial activity.

Language: Английский

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Antibacterial Activity, Cell Wall Damage, and Cytotoxicity of Zinc Oxide Nanospheres, Nanorods, and Nanoflowers

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(13), P. 15242 - 15254

Published: June 24, 2024

Nowadays, zinc oxide nanoparticles (ZnO NPs) have been shown to exhibit potent antibacterial activity against a wide range of pathogenic bacteria. Numerous investigations delved into exploring the activities exhibited by ZnO NPs. Notwithstanding, correlation between morphology these and their resultant impacts remains an area demanding further exploration across varying morphological variations. This paper presents comparative study on how affects efficacy. In this regard, NPs with different morphologies, including spherical, rod-like, flower-like structures, were synthesized via modified precipitation method characterized using X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), field emission scanning electron microscopy (FE-SEM), dynamic light scattering (DLS), Brunauer–Emmett–Teller (BET) analysis, reactive oxygen species (ROS) techniques. The was evaluated Gram-positive bacterium (Staphylococcus aureus) two Gram-negative bacteria (Escherichia coli Pseudomonas aeruginosa) through disk diffusion, minimum inhibitory concentration (MIC), bactericidal (MBC) tests, cytotoxicity assessed MTT assay. results showed that rod-like highest both Conversely, spherical displayed lowest activity. Remarkably, assessments exerted toxicity toward HepG2 human dermal fibroblasts (HDF) cells, whereas demonstrated least cytotoxic effects. extent cell membrane damage determined measuring DNA RNA leakage, visual confirmation FESEM imaging. provide valuable insights relationship nanoparticle efficacy, shedding mechanisms underlying superior morphology. Overall, findings designing developing efficient agents minimal adverse effects, opening up avenues for future research in nanomedicine biomedical applications.

Language: Английский

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A review on copper-based nanoparticles as a catalyst: synthesis and applications in coupling reactions

Journal of Materials Science, Journal Year: 2024, Volume and Issue: 59(15), P. 6169 - 6205

Published: March 24, 2024

Language: Английский

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Recent trends in the synthesis, characterization and commercial applications of zinc oxide nanoparticles- a review

Inorganica Chimica Acta, Journal Year: 2024, Volume and Issue: 573, P. 122350 - 122350

Published: Aug. 30, 2024

Language: Английский

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