Enhancing the synergistic properties of plate heat exchangers using nanohybrid MWCNTs–SiO2 EG-based nanofluids

Journal of Thermal Analysis and Calorimetry, Год журнала: 2025, Номер unknown

Опубликована: Март 29, 2025

Язык: Английский

---

Synthesis and Characterization of a Novel Sol–Gel-Derived Ni-Doped TiO2 Photocatalyst for Rapid Visible Light-Driven Mineralization of Paracetamol

Nanomaterials, Год журнала: 2025, Номер 15(7), С. 530 - 530

Опубликована: Март 31, 2025

The increasing presence of pharmaceutical contaminants, such as paracetamol, in water sources necessitates the development efficient and sustainable treatment technologies. This study investigates photocatalytic degradation mineralization paracetamol under visible light using nickel-doped titanium dioxide (Ni–TiO2) catalysts synthesized via sol-gel method. were characterized through Raman spectroscopy, UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), surface area measurements. Ni doping enhanced absorption TiO2, reducing its band gap from 3.11 eV (undoped) to 2.49 at 0.20 wt.% loading, while analysis confirmed incorporation with anatase predominant phase. Ni(0.1%)-TiO2 catalyst exhibited highest activity, achieving 88% total organic carbon (TOC) removal (5 ppm) after 180 min optimal conditions (catalyst dosage, 3 g L−1). Stability tests demonstrated 84% retained efficiency over five cycles, a kinetic rate constant 0.010 min−1. Hydroxyl radicals identified main reactive species. maintained high performance tap water, 78.8% TOC removal. These findings highlight potential cost-effective, light-active photocatalyst for pollutants, promising scalability industrial applications.

Язык: Английский

---

Simulation of Biofouling Caused by Bacillus halotolerans MCC1 on FeNP-Coated RO Membranes

Processes, Год журнала: 2025, Номер 13(5), С. 1422 - 1422

Опубликована: Май 7, 2025

Reverse osmosis (RO) desalination technology offers a promising solution for mitigating water scarcity. However, one of the major challenges faced by RO membranes is biofouling, which significantly increases costs. Traditional simulation models often overlook environmental variability and do not incorporate effects membrane-surface modifications. This paper develops bacterial growth model prediction seawater performance, applicable to commercial membranes, can be either uncoated or coated with iron nanoparticles (FeNPs nZVI). FeNPs were selected due their known antimicrobial properties potential mitigate biofilm formation. The native bacterium Bacillus halotolerans MCC1 was used as biofouling bacterium. Growth kinetics determined at different temperatures (from 26 50 °C) pH values 4 10) obtain parameters. Microbial on modeled using Monod equation. performance evaluated in terms hydraulic resistance permeate flux under clean biofouled conditions. validated data obtained laboratory scale. Bacteria grew faster 42 °C 10. had more significant effect than temperature rate. FeNP-coated exhibited lower maintained higher long-term membrane. modeling approach useful improving monitoring feed parameters assessing operational conditions minimum membranes. In addition, it introduces novel integration membrane coating effects, offering predictive tool support decisions improved performance.

Язык: Английский

---

Construction of SnS2@SnO2 nanocomposite Z-scheme heterojunction for dual-functional photocatalysis: Green hydrogen generation and crystal violet degradation

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 137, С. 471 - 486

Опубликована: Май 14, 2025

Язык: Английский

---