Combination of cobalt ferrite and graphene: High-performance and recyclable visible-light photocatalysis

Synthesis of magnetically recyclable spinel ferrite (MFe2O4, M = Zn, Co, Mn) nanocrystals engineered by sol gel-hydrothermal technology: High catalytic performances for nitroarenes reduction

“…In this context, the activity depends also on various factors including surface texturing, particle size, stability, distribution of metal ions among tetrahedral (A) sites and octahedral (B) sites of the cubic spinel lattice, and the redox properties of metal ions. In particularly, our nanoferrites exhibited effective catalytic reduction of 4-NP than Ni@Au/KCC-1nanocatalyst [55], Au/graphene [56] and Carbon@Au [57]. In ferrites, the metal ions present in the octahedral sites; that exposed on the surface, play a crucial role in catalysis since it has longer bond length.…”

Hydrothermal synthesis of magnetic CoFe2O4/graphene nanocomposites with improved photocatalytic activity

“…7(b) shows the PL spectra of the CoFe 2 O 4 and CoFe 2 O 4 /graphene nanocomposites. It was seen that the emission of the neat CoFe 2 O 4 was centered at ∼390 nm, which was attributed to the recombination of holes and electrons in the valence band and conduction ban [39]. The introduction of the graphene into the system quenched the fluorescence remarkably and the emission intensity decreased significantly.…”

Rational design of manganese ferrite-graphene hybrid photocatalysts: Efficient water splitting and effective elimination of organic pollutants

“…Extending the peaks maxima of Although the above behaviour is not straight forward; with either Mn or GO ratio, the mentioned spectral broadness [40] explains that the conversion of photoexcited electrons from intrinsic to extrinsic energy levels was achieved in the former samples. To figure out the reactive intermediates exposed following irradiating the most active hybrid Since graphene sheets are known as good electron acceptors [43], the electrons are quickly transferred to the graphene sheets and charges separation are attained. It has been proved that the hybrid GO 1 :Mn 1 contains maximum amounts of G with residual of GO moieties; as depicted from XPS results.…”