1 research outputs found
Scalable Green Method to Fabricate Magnetically Separable NiFe<sub>2</sub>O<sub>4</sub>‑Reduced Graphene Oxide Nanocomposites with Enhanced Photocatalytic Performance Driven by Visible Light
A reduced graphene oxide (RGO)-supported
nickel ferrite (NiFe<sub>2</sub>O<sub>4</sub>) photocatalyst was prepared
by a simple mechanical
ball-milling method. No additional solvents, toxic chemical reductants,
or ultrasonic or high-temperature heat treatments were needed. The
exfoliation and reduction of graphite oxide (GO) and the <i>in
situ</i> anchoring of NiFe<sub>2</sub>O<sub>4</sub> nanoparticles
on graphene sheets were fulfilled simultaneously under the strong
shear force. The structure characterization shows that the NiFe<sub>2</sub>O<sub>4</sub> nanoparticles were uniformly dispersed on RGO
sheets. Amazingly, after coupling with an appropriate amount of RGO,
the photocatalytically inert NiFe<sub>2</sub>O<sub>4</sub> exhibited
superior photodegradation performance and recycling stability for
the degradation of organic pollutant under visible-light irradiation
at room temperature. It suggested that the synergistic effect between
RGO and NiFe<sub>2</sub>O<sub>4</sub> improved the photocatalytic
performance of the composite. Moreover, the NiFe<sub>2</sub>O<sub>4</sub>-RGO is magnetically separable for recycling. Hopefully, this
work could shed light on the environment-friendly large-scale production
of graphene-based composites through the efficient ball-milling method