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Ta 3 N 5 was synthesized by nitridation of Ta 2 O 5 under NH 3 flow at 700°C. The catalyst was pure Ta 3 N 5 according to X-ray diffraction (XRD), and was about 5nm in size with a BET specific surface area 52.8m 2 /g. When Ta 3 N 5 was added to Fe 3+ /H 2 O 2 solution (known as Fenton-like system),...
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