Effect of reduced graphene oxide on the structural, optical, adsorption and photocatalytic properties of iron oxide nanoparticles
New Journal of Chemistry, ISSN: 1369-9261, Vol: 42, Issue: 11, Page: 8485-8493
2018
- 38Citations
- 40Captures
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Article Description
Functionalized FeO nanoparticles with low concentrations (1, 3 and 5 wt%) of reduced graphene oxide (rGO) were prepared by the thermal decomposition method. In accordance with X-ray diffraction (XRD), Fourier transform infrared (FTIR), UV-visible, and photoluminescence (PL) spectroscopies, a phase change from hematite (α-FeO) to maghemite (γ-FeO) was observed upon addition of rGO. The TEM investigation revealed that rGO led to the distortion of the FeO nanocuboid rods into spherical nanoparticles. The functionalized rGO acts as an electron accepter and led to the quenching of the luminescence behavior of FeO. The functionalization of FeO with 5% rGO significantly increases its surface area and thus enhanced adsorption of acid blue 113 (AB) from water was achieved. The adsorption studies revealed that 5%rGO/FeO (200 mg) adsorbed 89.6% of AB (100 mg L) within 440 min. In comparison with pure FeO, the 5%rGO/FeO also exhibits excellent photocatalytic activity in the degradation of AB under visible light irradiation.
Bibliographic Details
Royal Society of Chemistry (RSC)
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