Efficient and environmentally friendly syntheses of xanthenes derivatives by using γ-Fe2O3@HAP-Fe2+ NPs as a catalyst has been carried out. The catalyst can be readily isolated by using an external magnet and no obvious loss of activity was observed when the catalyst was reused in eight consecutive runs. The procedure has several advantages, such as economic...

Biopolymers and nanomaterials are an excellent choice for removing heavy metals keeping the environment clean. The hexavalent chromium (Cr6+) (or) chromium-6 is usually produced by various industrial processes, which can be a toxic liquid pollutant. In this study, nanopolymeric compound supplemented with Fe nanoparticle was used in extraction (removal) process of Cr6+ present aqueous solutions....

Abstract Due to their excellent thermal conductivity, lightweight, and ease of processing, aluminum alloys are the material choice for piston manufacture in internal combustion engines. Nanoparticles (NPs) alumina (Al 2 O 3 ) with a size 25 nm were incorporated into an alloy examine effect NP addition on wear resistance fatigue behavior. The stir casting method has been utilized experimental sa...

In this study, we investigated the effect of positively and negatively charged Fe₃O₄ and TiO₂ nanoparticles (NPs) on the growth of soybean plants (Glycine max.) and their root associated soil microbes. Soybean plants were grown in a greenhouse for six weeks after application of different amounts of NPs, and plant growth and nutrient content were examined. Roots were analyzed for colonization by...

The development of effective oxygen electrode catalysts for renewable energy technologies such as metal-air batteries and fuel cells remains challenging. Here, we prepared a novel high-performance oxygen reduction reaction (ORR) catalyst comprised of Fe₂N nanoparticles (NPs) in situ decorated over an N-doped porous carbon derived from pomelo peel (i.e., Fe₂N/N-PPC). The decorated Fe₂N NPs provi...

Abstract This work examines the influence of iron oxide nanoparticles (Fe 3 O 4 NPs) on neutron and gamma-ray radiation shielding characteristics Portland cement paste. Experimental evaluations were supplemented with theoretical studies using NXCom program. pastes 5, 10, 15, 20, 30 wt% nanomagnetite replacement produced. Moreover, rheological, early strength development, compressive strength, m...

A facile synthesis of rose-like Pd-Fe3O4 nanocomposites via controlled thermal decomposition of Fe(CO)5 and reduction of Pd(OAc)2, followed by the immobilization of Au nanoparticles (NPs) onto the Pd-Fe3O4 supports, is reported. The morphology of these hybrid nanostructures could be easily controlled by varying the amount of Fe(CO)5 and the reaction temperature. Moreover, the synthesized Au/Pd-...

A simple, inexpensive, and novel method was used to prepare electrocatalysts from Cu supported on titanium dioxide (Cu/TiO2). XRD, SEM, and TEM characterizations confirmed different loadings of Cu nanoparticles (NPs) on TiO2. Cyclic voltammetry tests indicated that Cu/TiO2 exhibited lower overpotential for CO2 reduction than that of Cu NPs. Moreover, 40 wt % Cu/TiO2 exhibited the highest farada...