Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(28)
Published: Oct. 1, 2024
Language: Английский
Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107557 - 107557
Published: April 1, 2025
Language: Английский
Citations
0
ACS Omega, Journal Year: 2023, Volume and Issue: 8(39), P. 36076 - 36087
Published: Sept. 22, 2023
ZnO and black TiO2 have been selected as the most efficient materials for organic pollution abatement due to their increased efficiency when compared other materials. However, concept of green chemistry makes it desirable design synthesis approaches production. In this study, was synthesized using an environmentally safe synthetic technique with glycerol a reductant. prepared by ionic-liquid-based microwave-assisted extracts Polygonum minus. To investigate materials' potential photodegrade pollutants, methylene blue (MB) phenol were chosen model pollutants. Both found exhibit spherical morphologies mesoporous structure absorbers visible light. exhibited electron-hole pair recombination lower than that TiO2. Black discovered be anatase phase, whereas hexagonal wurtzite structure. contrast TiO2, which had surface area 239.99 m2/g particle size 28 nm, 353.11 32 nm. With degradation time 60 min, able eliminate 97.50% 40 mg/L MB. on hand, could reduce 90.0% same amount MB in min. When tested degradation, activities reduced nearly 15 25%, respectively. A detailed examination both revealed has more versatility pollutants under light irradiation.
Language: Английский
Citations
10
Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 320, P. 100595 - 100595
Published: July 10, 2024
Nanosized spherical particles of pure ZnO and their doped photocatalysts with mono- or bi- Ag Ce-metal oxides at different weight portions (i.e., 2 4 wt%) through the sol-gel route followed by a calcination 500 °C for h were employed exploring photodegradation methylene blue (MB) dye under direct sunlight. The produced characterized X-ray diffraction (XRD), Brunauer, Emmett Teller (BET) surface area, scanning electron microscope (SEM), energy-dispersive spectroscopy (EDX), transmission (TEM), fourier transform infrared (FTIR), UV-Vis diffuse reflectance (DRS). XRD patterns confirmed formation hexagonal wurtzite polycrystalline structure good crystallinity. Bi-doped smaller particle sizes showed efficient improving in photocatalytic activity sunlight irradiation. enhanced performance samples could be attributed to reduction crystallite size band gap, as well presence excess oxygen vacancies Zn interstitial sites nanoparticles obtained. calculated gap decreased from 3.07 2.79 eV %Ag-4 %Ce/ZnO. This sample degraded MB completely 60 min, whereas exhibited 100 % degradation 180 min. Moreover, Ag-4 %Ce/ZnO photocatalyst has highest kinetic rate compared other over two initial concentrations (0.09667 min−1 Co= 10 mg/L 0.04433 20 mg/L). Hence, obtained Ce showcased superb breakdown irradiation positioning it promising material water remediation.
Language: Английский
Citations
3
Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)
Published: Feb. 23, 2024
Abstract The main purpose of this research endeavor is to reduce lead concentrations in the wastewater an oil refinery through utilization a material composed oyster shell waste (MIL-100(Fe)/ Cygnea /Fe 3 O 4 /TiO 2 . Initially, iron oxide nanoparticles (Fe ) were synthesized via solvent-thermal synthesis. It was subsequently coated layer by with organic–metallic framework MIL-100 (Fe) using core–shell method. Additionally, method utilized integrate TiO into magnetic framework’s structure. Varieties analytical analysis investigate physical and chemical properties synthetic final photocatalyst. Nitrogen adsorption desorption technique (BET), scanning electron microscopy (SEM), diffraction pattern (XRD), transmission (TEM). Following characterization photocatalyst, each step, several primary factors that significantly affect removal efficiency advanced oxidation system (AOPs) examined. These variables consist pH, photocatalyst dosage, concentration, reaction temperature. showed optimal performance from petroleum under following conditions: 35 °C temperature, pH 3, 0.04 g/l 100 mg/l concentration. maintained significant level reusability after undergoing five cycles. findings study revealed dosage most influential effectiveness removal. According conditions, reached maximum 96%. results investigation when exposed UVA light, exhibited extraordinary capacity for
Language: Английский
Citations
2
Water, Journal Year: 2024, Volume and Issue: 16(17), P. 2434 - 2434
Published: Aug. 28, 2024
Water quality and usability are global concerns due to microbial chemical pollution resulting from anthropogenic activities. Therefore, strategies for eliminating contaminants required. In this context, the removal decrease in antibiotic activity (AA) associated with levofloxacin (LEV), using TiO2 Ag/TiO2 catalysts, without sunlight peroxydisulfate, was evaluated. Additionally, disinfection capacity of catalytic systems assessed. The catalysts were synthesized characterized. Moreover, effect Ag doping on visible light absorption determined. Then, photocatalytic treatment LEV water performed. materials characterization EPR analyses revealed that degradation AA ascribed a combined action solar light, sulfate radical, TiO2-based materials. Also, primary byproducts elucidated theoretical (predictions about moieties more susceptible being attacked by degrading species) experimental techniques (LC-MS), which evidenced transformations piperazyl ring, carboxylic acid, cyclic ether LEV. linked transformations. addition, system (i.e., light/catalyst/peroxydisulfate) shown be effective E. coli inactivation, indicating versatility decontamination disinfection.
Language: Английский
Citations
2
ACS Sustainable Resource Management, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 30, 2024
Language: Английский
Citations
2
Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 158, P. 111434 - 111434
Published: Sept. 18, 2023
Language: Английский
Citations
5
Published: July 26, 2024
Photocatalytic processes offer promising solutions for environmental remediation and clean energy production, yet their efficiency under visible light remains a significant challenge. Here, we report novel silver-graphene (Ag-G) modified TiO2 (Ag-G-TiO2) nanocomposite photocatalyst that demonstrates remarkably enhanced photocatalytic activity both dye wastewater degradation hydrogen production UV irradiation. Through comprehensive characterization performance analysis, reveal the Ag-G modification narrows bandgap from 3.12 eV to 1.79 eV, enabling efficient absorption. The achieves peak rate of 191 μmolesg-1h-1 in deionized water solution light, significantly outperforming unmodified TiO2. Intriguingly, observe an inverse relationship between rates with tap versus water, highlighting critical role composition processes. Our findings demonstrate sustained rapid initial irradiation, underscoring versatility Ag-G-TiO2 catalyst. This work not only advances our understanding fundamental mechanisms but also presents material solar-driven applications, potentially contributing global transition towards sustainable technologies.
Language: Английский
Citations
1
Chemistry Africa, Journal Year: 2024, Volume and Issue: 7(8), P. 4593 - 4602
Published: Aug. 21, 2024
Language: Английский
Citations
1
Journal of Applied Electrochemistry, Journal Year: 2023, Volume and Issue: 54(3), P. 581 - 595
Published: Aug. 29, 2023
Language: Английский
Citations
3