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Role of oxygen defects on the magnetic properties of ultra-small Sn1−xFexO2 nanoparticles
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View: Figures


Image of FIG. 1.
FIG. 1.

XRD data for SnFeO, with x = 0, 0.001, 0.01, 0.05, 0.10, and 0.20.

Image of FIG. 2.
FIG. 2.

(a) Plot showing the variation of magnetic moment per Fe ion (calculated using the saturation magnetization of each sample from Figure 3 ), and the photocatalytic rate constant of SnFeO as function of Fe doping percentage. (b) and (c) show the photocatalytic degradation of RhB dye in nanopure water, treated with pure SnO and SnFe.O, respectively, for 0, 30, 60, 90, and 120 min.

Image of FIG. 3.
FIG. 3.

Magnetization curve loops for pure SnO and the 1%, 7.5%, 10%, and 20% Fe doped SnO samples measured at room temperature. The inset shows variation of saturation magnetization M and photocatalytic rate constant k of pure SnO nanoparticles as a function of the relative XPS intensity of Sn 3d and O1s peaks measured from pure SnO. The XPS intensity ratio I/I decreased gradually after annealing pure SnO in flowing Ar gas at 350  °C for 0, 1, and 2 h, which corresponds to the three data points.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Role of oxygen defects on the magnetic properties of ultra-small Sn1−xFexO2 nanoparticles