000126433 001__ 126433
000126433 005__ 20241125101145.0
000126433 0247_ $$2doi$$a10.1016/j.scitotenv.2023.163739
000126433 0248_ $$2sideral$$a133871
000126433 037__ $$aART-2023-133871
000126433 041__ $$aeng
000126433 100__ $$aEyssautier-Chuine, S.
000126433 245__ $$aEvaluating the durability and performance of polyoxometalate-ionic liquid coatings on calcareous stones: Preventing biocolonisation in outdoor environments
000126433 260__ $$c2023
000126433 5060_ $$aAccess copy available to the general public$$fUnrestricted
000126433 5203_ $$aRock-based materials exposed to outdoor environments are naturally colonised by an array of microorganisms, which can cause dissolution and fracturing of the natural stone. Biocolonisation of monuments and architectures of important cultural heritage therefore represents an expensive and recurring problem for local authorities and private owners alike. In this area, preventive strategies to mitigate biocolonisation are generally preferred to curative approaches, such as mechanical cleaning by brush or high-pressure cleaning, to remove pre-existing patina. The aim of this work was to study the interaction between biocidal polyoxometalate-ionic liquid (POM-IL) coatings and calcareous stones and evaluate the capacity of these coatings to prevent biocolonisation through a series of accelerated ageing studies in climate chambers, carried out in parallel with a two-year period of outdoor exposure in north-eastern France. Our experiments show that POM-IL coatings did not affect water vapour transfer nor significantly alter the total porosity of the calcareous stones. Simulated weathering studies replicating harsh (hot and wet) climatic weather conditions demonstrated that the colour variation of POM-IL-coated stones did not vary significantly with respect to the natural uncoated stones. Accelerated biocolonisation studies performed on the weathered POM-IL-coated stones proved that the coatings were still capable of preventing colonisation by an algal biofilm. However, a combination of colour measurements, chlorophyll fluorescence data, and scanning electron microscopy imaging of stones aged outdoors in northern France for two years showed that coated and uncoated stone samples showed signs of colonisation by fungal mycelium and phototrophs. Altogether, our results demonstrate that POM-ILs are suitable as preventative biocidal coatings for calcareous stones, but the correct concentrations must be chosen to achieve a balance between porosity of the stone, the resulting colour variation and the desired duration of the biocidal effect over longer periods of time, particularly in outdoor environments.
000126433 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FSE/E15-20R$$9info:eu-repo/grantAgreement/ES/MICINN-AEI/PRTR-C17.I1$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-109333RB-I00$$9info:eu-repo/grantAgreement/ES/UZ/LMA-ICTS ELECMI-CIBER-BBN
000126433 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000126433 590__ $$a8.2$$b2023
000126433 592__ $$a1.998$$b2023
000126433 591__ $$aENVIRONMENTAL SCIENCES$$b31 / 358 = 0.087$$c2023$$dQ1$$eT1
000126433 593__ $$aEnvironmental Chemistry$$c2023$$dQ1
000126433 593__ $$aWaste Management and Disposal$$c2023$$dQ1
000126433 593__ $$aPollution$$c2023$$dQ1
000126433 593__ $$aEnvironmental Engineering$$c2023$$dQ1
000126433 594__ $$a17.6$$b2023
000126433 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000126433 700__ $$0(orcid)0000-0002-8263-0473$$aFranco-Castillo, I.
000126433 700__ $$aMisra, A.
000126433 700__ $$aHubert, J.
000126433 700__ $$aVaillant-Gaveau, N.
000126433 700__ $$aStreb, C.
000126433 700__ $$0(orcid)0000-0003-4848-414X$$aMitchell, S. G.
000126433 773__ $$g884 (2023), 163739 [12 pp.]$$pSci. total environ.$$tSCIENCE OF THE TOTAL ENVIRONMENT$$x0048-9697
000126433 8564_ $$s2734528$$uhttps://zaguan.unizar.es/record/126433/files/texto_completo.pdf$$yVersión publicada
000126433 8564_ $$s2524380$$uhttps://zaguan.unizar.es/record/126433/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000126433 909CO $$ooai:zaguan.unizar.es:126433$$particulos$$pdriver
000126433 951__ $$a2024-11-22-12:04:19
000126433 980__ $$aARTICLE