Open AccessFront Cover: Thin Coatings of α‐ and β‐Bi 2 O 3 by Ultrasonic Spray Coating of a Molecular Bismuth Oxido Cluster and their Application for Photocatalytic Water Purification Under Visible Light (ChemistryOpen 3/2020)
Author(s) -
Hofmann Max,
Rößner Leonard,
Armbrüster Marc,
Mehring Michael
Publication year - 2020
Publication title -
chemistryopen
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.202000038
Subject(s) - bismuth , photocatalysis , materials science , coating , cluster (spacecraft) , chemical engineering , surface modification , oxide , thin film , substrate (aquarium) , nanotechnology , organic chemistry , catalysis , chemistry , metallurgy , computer science , oceanography , geology , engineering , programming language
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‐Bi 2 O 3 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: 10.1002/open.201900323).