Near-infrared-active upconverting niobium-doped black titanium dioxide photocatalysts

29 October 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Black titanium dioxide is a broadband-absorbing photocatalyst characterized by integration of atomic hydrogen within the outer layers of anatase nanomaterials. In addition to is broad absorbance of visible to near-infrared light, the material has some intrinsic upconversion ability, which is greatly enhanced by the addition of a niobium oxide shell. This yields a highly active photocatalyst as demonstrated in photodegradation experiments.


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