Nitrogen‐doped Lamellar Niobic Acid with Visible Light‐responsive Photocatalytic Activity

By a facile solid-state reaction method with urea as a nitrogen source, HNb3O8 could be successfully doped with nitrogen without destroying its layered structure. It was found that the intercalation of urea not only helps to stabilize the layered structure of HNb3O8 during the heating process, but also facilitates an easier doping of nitrogen into the solid acid. The nitrogen-doped HNb3O8 photocatalyst so-obtained shows fairly good activity under visible light irradiation. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.