A sustainable strategy for mitigating water pollution: Photocatalytic enhancement of hydrothermally synthesized hydrochars from waste parsley stalks via doping magnetite and sphalerite ores

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 106925 - 106925

Published: Jan. 9, 2025

Language: Английский

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Optimization of trypan blue and brilliant green dyes photocatalytic degradation and adsorption of lead(II) and chromium (VI) heavy metal ions by copper sulfide nanoparticles

Environmental Advances, Journal Year: 2024, Volume and Issue: 17, P. 100575 - 100575

Published: Aug. 9, 2024

The use of nanoparticles for to remove organic pollutants and heavy metals is a rapidly expanding field in environmental sciences. However, process optimization practical, real-world applications still underexplored. In this work, copper sulfide prepared from single-source precursor were characterized using SEM, TEM, EDX, FTIR, UV-visible spectroscopy. demonstrated high photocatalytic degradation efficiency trypan blue (TB) brilliant green (BG) dyes. as-prepared efficiently removed lead(II) (Pb2+) chromium(VI) (Cr6+) ions. Response surface methodology (RSM) with Box-Behnken design (BBD) was employed optimize reaction time, pH, nanoparticle dosage. optimal conditions TB pH 10.91, 77.46 minutes, 4.999 g/L, while BG, they 3, 70 5 g/L. For Pb2+ removal, 7.06, 100.38 0.94 Cr6+ 3.03, 168.20 0.98 Under these conditions, CuS achieved up 99.35% TB, 100% removal Pb2+, 98.54% Cr6+. ANOVA confirmed the models' significance, regression coefficients (R²: 0.9852 0.9846 0.9980 0.9901 Cr6+). photocatalyst remained stable over three reuse cycles, minimal reduction (8.88% 19.01% BG). This study demonstrates effectiveness remediation highlights practicality RSM as efficient materials dyes metal-laden wastewater.

Language: Английский

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A comprehensive review of pressure and osmosis driven membrane processes: Processes, characteristics and materials

Desalination, Journal Year: 2024, Volume and Issue: 598, P. 118427 - 118427

Published: Dec. 11, 2024

Language: Английский

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Enhanced Photocatalytic Degradation and Antimicrobial Activities of Biogenic Co3O4 Nanoparticles Mediated by Fenugreek: Sustainable Strategies

Materials Advances, Journal Year: 2024, Volume and Issue: 5(20), P. 8111 - 8131

Published: Jan. 1, 2024

The present study introduces Trigonella foenum-graecum (TFG, fenugreek)-mediated Co 3 O 4 nanoparticles (NPs) as an innovative solution for eliminating industrial azo dyes from contaminated water.

Language: Английский

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Controlling the Carbon Species to Design Effective Photocatalysts Based on Explosive Reactions for Purifying Water by Light

Catalysts, Journal Year: 2025, Volume and Issue: 15(1), P. 96 - 96

Published: Jan. 20, 2025

The international challenges of water directed the scientists to face environment-related problems because high concentrations industrial pollutants. In this direction, present study focuses on designing effective photocatalysts by explosive technique use light as a driving force for removing pollutants from water. These consist gold, carbon species (nanotubes, nanofibers, and nanoparticles), aluminum oxides. By controlling processes, two were prepared; one was based nanotubes nanofibers combined with oxide, other contained nanoparticles both Raman spectra, transmission electronic microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), mapping images confirmed presence these nanostructures in homogenous nanocomposites. optical properties prepared nanocomposites evaluated UV–Vis absorbance, band gap energy, photoluminescence (PL) measurements. experimental results indicated that CNTs CNFs led lowering energy nanocomposite 2.3 eV. This is suitable obtaining an photocatalyst. speculation through photocatalytic degradation green dyes. photocatalyst caused complete removal dyes after 21 min radiation. PL measurement have important roles accelerating A kinetic boosted efficiency accelerate reaction rate decomposition more than four times faster nanoparticles. Finally, concluded are favorable meet special requirements markets pollutant purification.

Language: Английский

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Bioinspired Sustainable Development of Ag-CuO/MWCNT Nanocomposites for Antibacterial Applications

Microbial Pathogenesis, Journal Year: 2025, Volume and Issue: unknown, P. 107516 - 107516

Published: March 1, 2025

Language: Английский

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Lithium Manganese Oxide (Li2MnO3) as a promising photocatalyst for the degradation of Eriochrome Black T

Deleted Journal, Journal Year: 2025, Volume and Issue: 20(1)

Published: April 30, 2025

Abstract Wastewater pollution caused by toxic dyes from the textile industry is a global challenge, threatening agricultural productivity, food security, and access to clean water for livestock. In recent years, photocatalytic degradation of organic pollutants using semiconducting materials has emerged as promising approach sustainable wastewater treatment. We present cost-effective synthesis method lithium manganese oxide (Li 2 MnO 3 ), which aggregate form densely packed microcrystalline powder, with smooth-stone morphology, monoclinic crystal structure. Optical characterization reveals broad visible light absorption, strong infrared reflectance an optical bandgap 2.1 eV, suggesting potential applications in radiation-resistant coatings. Moreover, obtained Li material effectively degraded Eriochrome Black T, common dye, efficiencies up 73% 5 × 10⁻ M solutions, under illumination at 625 nm, within 60 min. These findings underscore nanostructured microcrystals treatment applications.

Language: Английский

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Fabrication of a Novel Silica–Alumina-Based Photocatalyst Incorporating Carbon Nanotubes and Nanofiber Nanostructures Using an Unconventional Technique for Light-Driven Water Purification

Catalysts, Journal Year: 2025, Volume and Issue: 15(5), P. 452 - 452

Published: May 6, 2025

The advancement of optical materials has garnered significant interest from the global scientific community in pursuit efficient photocatalysts for purification water using light. This challenge, which cannot be addressed traditional methods, is tackled present study utilizing unconventional approaches. presents fabrication an effective photocatalyst approach that employs explosive reactions. method successfully produces 3D nanostructures composed carbon nanotubes (CNTs), nanofibers (CNFs), and silica–alumina nanoparticles at temperatures below 270 °C. Gold-supported silica–alumina–CNT–CNF were synthesized characterized XRD, TEM, SEM, EDX, addition to mapping images. To determine photoactivity these produced nanostructures, two well-known photocatalysts—titanium dioxide zinc oxide—were nanoscale comparison. results showed presence CNTs CNFs significantly reduced band gap energy 5.5 eV 1.65 3.65 eV, respectively, after modifying structure. In addition, complete degradation green dye was achieved 35 min light exposure modified Additionally, surface properties had a positive role accelerating photocatalytic decomposition NGB. A kinetic confirmed functions as promising additive applications, NGB rate three times faster than prepared titanium six oxide.

Language: Английский

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Green synthesis and enhanced photocatalytic performance of Co-Doped CuO nanoparticles for efficient degradation of synthetic dyes and water splitting

Results in Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 101971 - 101971

Published: Dec. 1, 2024

Language: Английский

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Photocatalytic degradation of the Remazol Red Ultra RGB dye using SrFe12O19-Fe3O4 magnetic oxides dispersed in silica: Effect of reduction temperature

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 320, P. 100760 - 100760

Published: Sept. 7, 2024

Language: Английский

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