Grafting and stabilization of metal complexes for increasing catalytic activity have remained an enormous challenge in the arena. However, designing a system with complementary properties including high surface area, loading, easy separation offers promising route efficient utilization magnetic material various applications. Herein, novel core–shell nanosphere catalyst (Fe3O4@C/KP23@MnCl2) was ...

Industrial effluents contain a wide range of organic pollutants that present harmful effects on the environment and deprived communities with no access to clean water. As this matter is resistant conventional treatments, Advanced Oxidation Processes (AOPs) have emerged as suitable option counteract these environmental challenges. Engineered iron oxide nanoparticles been widely tested in AOPs ca...

A synergetic effect of ultrasonic irradiation and yolk–shell nanocatalyst was examined for the synthesis spirooxindoles from isatin, malononitrile cyclohexanone. It found this contributory can be accelerated desired reaction toward obtaining highly pure products in excellent yields short times. The contains melamine anchored onto magnetic Fe3O4 nanoparticles were applied as active base catalyst...

In the present study, a novel catalyst was well designed by incorporating the tungstophosphoric acid into the magnetic chitosan, as highly stable composite, in which the iron oxides were used the strong super-magnetic core. The prepared composite was characterized by several methods, including FTIR, XRD, SEM, TEM and EDS and its catalytic activity was examined in a facile, green and highly effi...

In this work, various 3-cyano-4-aryl-4H-pyran derivatives were prepared efficiently through a one-pot,multicomponent synthesis between aromatic aldehyde, malononitrile and acetophenone derivativesor ethyl acetoacetate using Fe3O4/EDTA magnetic nanocatalyst and ethanol as solvent. The reactionswere completed at room temperature in 10 min using 5 mg of catalyst and 2 mL of solvent to prepare1 mmo...

conclusion gm presents with a wide range of conventional radiological findings, hampering the diagnosis. in patients with inconclusive conventional findings, mri may assist in the differential diagnosis and assessment of the extent of disease. however, a definitive diagnosis and relevant treatment require histopathological confirmation. objectives the aim of this study was to review the radiolo...

The selective hydrogenation of chalcone to dihydrochalcone under atmospheric hydrogen pressure is investigated using a thermoregulated phase-transfer ruthenium nanocatalyst, representing the first nanocatalyst used for this reaction. Under optimal conditions, conversion into and selectivity are 98% >99%, respectively. catalyst can be easily separated from product recycled three times without...

This study describes the heterogeneous photocatalysis of CuO nanoflakes for effective degradation hazardous dyes. The successful synthesis was carried out by exploiting aqueous chemical growth method. synthesized material characterized versatile analytical tools including XRD, FE-SEM, EDX, AFM, ZP and FT-IR. engineered reveals texture having average size 18.3 nm (− 36.5 ± 3 mV) surface charge w...