Cellulosic metallic nanocomposites for photocatalytic degradation of persistent dye pollutants in aquatic bodies: A pragmatic review

Journal of Organometallic Chemistry, Journal Year: 2024, Volume and Issue: 1010, P. 123087 - 123087

Published: March 13, 2024

Language: Английский

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Investigation of photocatalytic, antibacterial and antioxidant properties of environmentally green synthesized zinc oxide and yttrium doped zinc oxide nanoparticles

Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 38, P. 101188 - 101188

Published: May 1, 2024

Language: Английский

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Rapid degradation of anionic azo dye from water using visible light-enabled binary metal-organic framework

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105686 - 105686

Published: June 25, 2024

Language: Английский

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Synergistic Enhancement of Photocatalytic and Antifungal Activities in Microwave‐Assisted ZnO/Fe‐Doped Bi₂O₃ Nanocomposites

physica status solidi (a), Journal Year: 2024, Volume and Issue: 221(9)

Published: March 7, 2024

Herein, the successful synthesis of ZnO/Fe‐doped Bi 2 O 3 nanocomposite through a microwave‐assisted coprecipitation method is reported. The fabricated materials are comprehensively characterized using X‐ray diffraction, field‐emission scanning electron microscopy, energy dispersive analysis, UV–vis, vibrating sample magnetometer, and photoluminescence techniques. results investigation unveil reduction in crystalline size, low bandgap 1.7 eV, notable improvements magnetization surface area (50.63 m g −1 ) upon incorporation ZnO Fe doping into . Remarkably, ZnO/5% Fe‐doped composite demonstrates 86.34% degradation methylene blue (MB) dye within 60 min. Furthermore, this exhibits significant antifungal activity, as evidenced by zone inhibition diameter 20 mm against Aspergillus flavus Ongoing studies investigating impact pH, inorganic ions, scavenger mechanisms, MB degradation. These findings underscore synergistic effects Fe, which enhance absorption photons that decrease recombination rate increase charge transfer , contributing to improved material properties composite. This study paves way for further exploration multifunctional nanocomposites diverse environmental biomedical applications.

Language: Английский

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Facile Synthesis of Ni-Doped ZnO Nanoparticles Using Cashew Gum: Investigation of the Structural, Optical, and Photocatalytic Properties

Molecules, Journal Year: 2023, Volume and Issue: 28(23), P. 7772 - 7772

Published: Nov. 25, 2023

This work adopted a green synthesis route using cashew tree gum as mediating agent to obtain Ni-doped ZnO nanoparticles through the sol–gel method. Structural analysis confirmed formation of hexagonal wurtzite phase and distortions in crystal lattice due inclusion Ni cations, which increased average crystallite size from 61.9 nm 81.6 nm. These resulted growth point defects structure, influenced samples’ optical properties, causing slight reductions band gaps significant increases Urbach energy. The fitting photoluminescence spectra an increase concentration zinc vacancy (VZn) monovacancies (Vo) Zn cations were replaced by structure. percentage VZn for pure compound was 11%, increasing 40% 47% samples doped with 1% 3% respectively. In contrast, highest VO is recorded material lowest ions concentration, comprising about 60%. influence dopant also reflected photocatalytic performance. Among tested, Zn0.99Ni0.01O presented best result MB degradation, reaching efficiency 98.4%. Thus, recovered underwent reuse tests, revealing 98.2% dye confirming stability photocatalyst. Furthermore, use different inhibitors indicated that •OH radicals are main ones involved removing pollutant. valuable because it presents ecological gum, natural polysaccharide has been little explored literature.

Language: Английский

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Microbial synthesis of titanium dioxide nanoparticles and their importance in wastewater treatment and antimicrobial activities: a review

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Oct. 16, 2023

Nanotechnology (NT) and nanoparticles (NPs) have left a huge impact on every field of science today, but they shown tremendous importance in the fields cosmetics environmental cleanup. NPs with photocatalytic effects positive responses wastewater treatment, cosmetics, biomedical field. The chemically synthesized TiO2 (TiO2 NPs) utilize hazardous chemicals to obtain desired-shaped TiO2. So, microbial-based synthesis has gained popularity due its eco-friendly nature, biocompatibility, etc. Being NPs, high surface area-to-volume ratio addition their degradation nature. In present review, authors emphasized microbial (algae, bacterial, fungi, virus-mediated) NPs. Furthermore, exhibited food sector, automobile, aerospace, medical,

Language: Английский

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Synthesis and characterization of titanium dioxide nanoparticles from Bacillus subtilis MTCC 8322 and its application for the removal of methylene blue and orange G dyes under UV light and visible light

Frontiers in Bioengineering and Biotechnology, Journal Year: 2024, Volume and Issue: 11

Published: Jan. 8, 2024

Over the last decade there has been a huge increase in green synthesis of nanoparticles. Moreover, is continuous harnessing potential microorganisms for development efficient and biocompatible nanoparticles around globe. In present research work, investigators have synthesized TiO 2 NPs by Bacillus subtilis MTCC 8322 (Gram-positive) bacteria. The formation confirmation bacteria were carried out using UV-Vis spectroscopy, Fourier transforms infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectroscopy (EDX/EDS). size was 80–120 nm which spherical to irregular shape as revealed SEM. FTIR showed characteristic bands Ti-O range 400–550 cm −1 924 while band at 2930 confirmed association bacterial biomolecules with NPs. XRD two major peaks; 27.5° (rutile phase) 45.6° (anatase Finally, assessed an antibacterial agent photocatalyst. remediation Methylene blue (MB) Orange G (OG) dyes under UV- light visible contact time 150–240 min respectively. removal efficiency 100 ppm MB dye 25.75% OG 72.24% UV light, maximum percentage 98.85% 80.43% respectively 90 min. kinetic study adsorption isotherm both dyes, where pseudo-first-order 263.269 475554.176 mg/g dye. pseudo-second-order kinetics 188.679 1666.667 addition this, activity against Escherichia coli 8933 (Gram-negative) zone inhibition about 12 mm, E. 16 mm.

Language: Английский

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Remarkable improvement in photocatalytic activity of NiO nanoparticles through Ag doping: A kinetics-mechanism & recyclability

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 73, P. 54 - 62

Published: June 7, 2024

Language: Английский

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Unveiling Bi-functional potential of ZnMoO4-enriched nanoflakes modified electrodes for efficient photocatalysis and supercapacitors

Journal of Sol-Gel Science and Technology, Journal Year: 2024, Volume and Issue: 112(1), P. 25 - 43

Published: Aug. 7, 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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