Nano-TiO2 Coatings for Limestone: Which Sustainability for Cultural Heritage?
Source abstract
Abstract
The present study concerns the ecodesign of the application of an aqueous nano-TiO2 suspension on a porous limestone used in historical monuments with a spraying system through the LCA methodology, in order to define the most critical aspects of the process and to try to minimize the environmental burden during the implementation of the application process. Because of the limited knowledge currently available regarding the effects that nano-TiO2 may have on the environment or human health, a precautionary approach has been adopted in all life cycle steps, to assess the risk of having nanoparticle emissions from a nanocoating surface and for workers, who can come into contact with or inhale the nanoparticles released. The energy-intensive operations in the application stage greatly contribute to the total environmental damage, while the impact generated by nanoparticle emissions during the use phase contributes 2.9%. In addition, the self-cleaning and de-polluting transparent titania coating produces a benefit of −0.13%.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Building materials and conservation · Conservation Techniques and Studies · Nanoparticles: synthesis and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Sciences and Engineering Methods, University of Modena and Reggio Emilia, Via Amendola, 2, 42100 Reggio Emilia, Italy
Department of Industrial Engineering, University of Parma, Parco Area delle Scienze, 181/A, 43124 Parma, Italy
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