Metal Oxide-Based Nanomaterials for the Treatment of Industrial Dyes and Colorants

Vadiraj, K.T.; Shivaraju, Harikaranahalli Puttaiah

doi:10.1007/978-981-19-0882-8_8

Cited by 2 publications

(1 citation statement)

References 87 publications

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“…In fact, coatings based on metal oxide nanomaterials can reduce water penetration thanks to their potential interaction with a wide range of hydrophobic binders, in addition to the so-called lotus effect. Moreover, their capacity to degrade pollutants such as stains [220], combat aerial pollutants such as nitrogen oxides gases (NO x ) [221], inhibit microbial growth, and promote resistance to ageing thanks to photocatalytic processes through the continuous generation of ROS when nanomaterials are exposed to a source of light has helped these kinds of nanomaterials to gain attention in this field. However, pure metal oxide NPs, particularly TiO 2 and ZnO nanomaterials, which are the most widely used metal oxides in this field, have two main limitations: weak solar energy absorption efficiency and fast recombination of photogenerated charge carriers.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Recent Advances in the Application of Metal Oxide Nanomaterials for the Conservation of Stone Artefacts, Ecotoxicological Impact and Preventive Measures

Ben Chobba,

Weththimuni,

Messaoud

et al. 2024

Coatings

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Due to the ongoing threat of degradation of artefacts and monuments, the conservation of cultural heritage items has been gaining prominence on the global scale. Thus, finding suitable approaches that can preserve these materials while keeping their natural aspect of is crucial. In particular, preventive conservation is an approach that aims to control deterioration before it happens in order to decrease the need for the intervention. Several techniques have been developed in this context. Notably, the application of coatings made of metal oxide nanomaterials dispersed in polymer matrix can be effectively address stone heritage deterioration issues. In particular, metal oxide nanomaterials (TiO2, ZnO, CuO, and MgO) with self-cleaning and antimicrobial activity have been considered as possible cultural heritage conservative materials. Metal oxide nanomaterials have been used to strengthen heritage items in several studies. This review seeks to update the knowledge of different kinds of metal oxide nanomaterials, especially nanoparticles and nanocomposites, that have been employed in the preservation and consolidation of heritage items over the last 10 years. Notably, the transport of nanomaterials in diverse environments is undoubtedly not well understood. Therefore, controlling their effects on various neighbouring non-target organisms and ecological processes is crucial.

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Section: Conclusion and Future Perspectivesmentioning

confidence: 99%