Construção de um protótipo para a síntese de nanomateriais luminescentes

Abstract

The waste from pig farming is considered a potential agent of environmental degradation due to its classification as hazardous, or Class I, and the biological risk associated with the presence of microorganisms in its composition, having the potential to contaminate air, water, and/or soil. The absence of specific legislation for the proper management of this waste in Brazil further exacerbates the environmental impacts, making pig farming unsustainable in this regard. A promising alternative for dealing with this type of waste is its use in the production of carbon nanomaterials, offering an innovative, technological, and sustainable destination.In this context, luminescent nanoparticles have attracted great interest due to their distinct properties, such as high quantum yield, photostability, multicolor capability, surface functionality, and reduced size. These materials find applications in a wide range of sectors, including medicine, environment, electronics, defense and security, agribusiness, and food. Considering the current scenario of increasing waste generation, including domestic waste and industrial effluents, nanotechnology emerges as a promising solution for the efficient management of these materials.In light of this, the present study proposed the development of an efficient, large-scale production prototype based on an easy-to-apply batch reactor for the sustainable treatment and disposal of pig farming waste. The production of luminescent nanomaterials was confirmed through visual analysis under ambient and UV light, and by spectroscopic techniques such as photoluminescence and UV-Vis. These analyses demonstrated that system modification, based on the origin of the precursor and the serpentine materials applied, resulted in variations in the obtained products. Therefore, the promising capability of the prototype to convert materials into value-added products was evidenced, as well as its potential as an alternative method for the treatment and disposal of generated waste.