期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 45, 页码 14926-14931出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201809893
关键词
corrosion; ionic liquids; metal oxides; polyoxometalates; self-assembly
资金
- Ulm University
- Fundacion General CSIC
- Fondo Social Europeo-Gobierno de Aragon
- CIBER-BBN
- Schlumberger Foundation (Faculty for the Future)
Corrosion of stone by acid rain and deterioration from biofilms are global problems for industrial and residential buildings as well as cultural heritage, such as statues or historic buildings. Herein we show how typical building stones can be protected from corrosion (weathering) and biofilm formation (biodeterioration) by application of thin films of polyoxometalate-based ionic liquids (POM-ILs). Stone samples are coated with hydrophobic, acid resistant POM-ILs featuring biocidal properties. Exposure of the samples to simulated acid rain showed negligible corrosion compared to the significant deterioration of unprotected samples; in addition the biocidal properties of the POM-ILs suppress the formation of biofilms on coated stone slabs. A new class of modular molecular materials for protecting stones can now be developed for use in construction, environmental protection, and cultural heritage preservation.
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