Efficient One-Step Synthesis of Gold Nanoparticles Supported on Reduced Graphene Oxide for Methanol Oxidation Reaction Catalyst in Alkaline Electrolyte

Journal of nano research, Год журнала: 2025, Номер 87, С. 49 - 63

Опубликована: Март 26, 2025

This study explores the utility of reduced graphene oxide (rGO) as a support material for gold nanoparticles (AuNPs) synthesized via an economically efficient and environmentally friendly electrochemical deposition method conducted at room temperature. Employing chronoamperometry (CA) method, we successfully synthesize AuNPs in aqueous solutions without additional stabilizing agents. We investigate influence substrate electrodeposition duration on growth AuNPs, indium tin glass substrates rGO, with durations comparison. research highlights straightforward rapid one-step synthesis medium correlation between Au particle size electrocatalytic performance. evaluate performance rGO-supported context methanol oxidation reaction (MOR) using cyclic voltammetry alkaline electrolyte. Notably, supported by featuring average 46 nm, exhibit superior compared to their counterparts 165 nm when employed catalysts MOR. is characterized 15 mV more negative potential (54 mv 39 mV) over 2.5 times higher peak current (0.064 mA 0.025 mA), underscoring efficiency electrocatalysts

Язык: Английский

Green synthesis of superhydrophobic cotton filters using Pistacia atlantica gum for efficient oil and water separation

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Апрель 4, 2025

In this study, a novel hydrophobic polysulfide (NPS) reagent was synthesized using Pistacia atlantica gum and sulfur powder under hydrothermal conditions. Boehmite (γ-AlOOH) functionalized with curcumin (BCur) TiO2 nanoparticles were coated the NPS reagent. Subsequently, cotton fabrics dip-coated separately NPS, NPS-BCur, NPS-TiO2, resulting in fabrication of superhydrophobic filters water contact angles (WCA) exceeding 150°. The reagents thoroughly characterized FT-IR, XRD, TGA, SEM, X-ray mapping, WCA measurements. demonstrated exceptional performance separating oil-water mixtures, achieving separation efficiencies 91-98.6%. Even after 20 recycling cycles, negligible changes observed efficiency. use natural materials, eco-friendly synthesis, high durability, outstanding underscore sustainability practicality these fabrics.

Язык: Английский

Enhancing textile properties using nanotechnology and 3D printing process

Journal of Sol-Gel Science and Technology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 12, 2025

Язык: Английский