Front Cover: Thin Coatings of α‐ and β‐Bi2O3 by Ultrasonic Spray Coating of a Molecular Bismuth Oxido Cluster and their Application for Photocatalytic Water Purification Under Visible Light (ChemistryOpen 3/2020)

摘要

The Front Cover shows a spray‐coated bismuth oxide film (yellow) on a graffiti wall representing the functionalization of surfaces with photocatalytically active coatings. Thin films of α‐ and β‐Bi2O3 can be deposited via ultrasonic spray technique, which is easy scalable and quite flexible with regard to the choice of the substrate. A bismuth oxido cluster is used as molecular precursor. Its ligand shell ensures solubility in organic solvents avoiding acidic conditions. The final non‐toxic coatings offer photocatalytic activity under visible light irradiation. This is demonstrated by degradation experiments on a biocide as well as a medicinal drug. More information can be found in the Full Paper by Max Hofmann et al. on page 277 in Issue 3, 2020 (DOI: https://doi.org/10.1002/open.201900323).