Статья

Green Biocidal Nanotechnology Use for Urban Stone-Built Heritage—Case Study from Oradea, Romania

Dorina Camelia IlieșDepartment of Geography, Tourism and Territorial Planning, Faculty of Geography, Tourism and Sport, University of Oradea, 1 Universitatii Street, 410087 Oradea, RomaniaLucían BlagaDepartment of Geography, Tourism and Territorial Planning, Faculty of Geography, Tourism and Sport, University of Oradea, 1 Universitatii Street, 410087 Oradea, RomaniaAlexandru IlieșDepartment of Geography, Tourism and Territorial Planning, Faculty of Geography, Tourism and Sport, University of Oradea, 1 Universitatii Street, 410087 Oradea, RomaniaAna Cornelia PereșDepartment of Environmental Engineering, Faculty of Environmental Protection, University of Oradea, Magheru Street 26, 410087 Oradea, RomaniaTudor CacioraDepartment of Geography, Tourism and Territorial Planning, Faculty of Geography, Tourism and Sport, University of Oradea, 1 Universitatii Street, 410087 Oradea, RomaniaThowayeb H. HassanDepartment of Social Studies, College of Arts, King Faisal University, Al Ahsa 31982, Saudi ArabiaNicolaie HodorFaculty of Geography, “Babes-Bolyai” University, 5-6 Clinicilor Street, 400006 Cluj-Napoca, RomaniaAlexandru TurzaNational Institute for R&D of Isotopic and Molecular Technologies, 67-103 Donat Street, 400293 Cluj-Napoca, RomaniaHamid R. TaghiyariFaculty of Materials Engineering & New Technologies, Shahid Rajaee Teacher Training University, Tehran 16788-15811, IranLucian Barbu–TudoranElectron Microscopy Center “Prof. C. Craciun”, Faculty of Biology & Geology, “Babes-Bolyai” University, 5-7 Clinicilor Str., 400006 Cluj-Napoca, RomaniaRanjan Kumar DahalCentral Department of Geology, Tribhuvan University Kirtipur, Kathmandu 44618, NepalPaula DejeuBahodirhon SafarovDepartment of Digital Economy, Samarkand State University, Samarkand 140105, UzbekistanMallik Akram HossainDepartment of Geography and Environment, Jagannath University, Dhaka 1100, Bangladesh

Mineralsjournal2023en

ABI

Аннотация

Heritage buildings clad with natural rock endure over time destruction caused by weathering mechanisms, pollution from urban areas, biodeterioration due to organisms, microorganisms, and also the anthropic factor. On the surface of the limestone samples taken from the ornamental natural rock with which the outside of Markovits-Mathéser house, Oradea, Romania, is clad, two species of fungi were inoculated in the laboratory: Aspergillus spp. and Cladosporium spp. Wollastonite was then applied, and from the imaging analysis (SEM), the inhibition of fungi by it is clearly observed (48 h after its application), which was also confirmed using the image segmentation method. It was also noted that the hydrophilicity of the aqueous suspension of wollastonite resulted in the absorption of water in the substrate, which in turn resulted in the drying out and surface breakage of the specimens. X-ray diffraction analysis showed the presence of the two phases (calcite and quartz) as in the starting sample, and also an additional phase assigned to wollastonite in the later phase of the experiment. An amorphous component, due to the applied gel composition, was also reported. This research highlights the fact that there are good premises for aqueous suspension of wollastonite to have a biocidal character for Aspegillus spp. and Cladosporium spp., when applied on natural stone used in the construction of heritage buildings located in temperate climates; due to its easy application, green and ecofriendly properties, and also low cost of acquisition and application.

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Темы

Building materials and conservation Conservation Techniques and Studies Lichen and fungal ecology

Идентификаторы

DOI: 10.3390/min13091170

Цитирования и источники

Цитирований: 3 Использованных источников: 111

Показатели — AkademScholar