多金属氧酸盐
腐蚀
离子液体
生物膜
风化作用
化学
化学工程
涂层
材料科学
冶金
有机化学
复合材料
地质学
地球化学
催化作用
细菌
古生物学
工程类
作者
Archismita Misra,Isabel Franco Castillo,Daniel P. Müller,Carolina Parra González,Stéphanie Eyssautier‐Chuine,Andreas Ziegler,Jesús M. de la Fuente,Scott G. Mitchell,Carsten Streb
标识
DOI:10.1002/anie.201809893
摘要
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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