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Amorphous phosphorus nitride (P3N5) hollow spheres were synthesized via reacting PCl3 with NaNH2 at room temperature. Transmission electron microscopy (TEM) images showed the hollow spheres with a diameter of 80–150 nm. X-ray photoelectron spectra (XPS) were used to determine the molar ratio of 1:1.60 for P:N. The optical properties of the as-prepared P3N5 were investigated.
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