Aplicação da MOF HKUST-1 no processo de tratamento de efluentes gerados na indústria de dermocosméticos

Abstract

On a daily basis, many dermocosmetic products are used all over the world, as they have pharmacological effects and can be used in various dermatological treatments. which end up being dumped many times without proper treatment directly into the aquatic environment, generating a great concern with environmental contamination. Faced with this concern with these types of pollutants, this project was developed in order to synthesize, characterize and investigate the potential use of metal-organic networks in the adsorption of effluents from the dermocosmetic industry. These porous materials are known as Metal-Organic Frameworks (MOFs) which cover a field of chemistry that has grown exponentially in recent decades. MOFs are crystalline compounds containing potentially empty spaces (pores) formed from ions or metal clusters intertwined by organic spacers. In addition to their structural and topological diversity, these materials have great potential for several applications, among them in the environmental area, removing pollutants in industrial effluents because it is a promising way. Aluminum chlorohydroxide is a compound found i n the form of aluminum salt in various cosmetics, especially those with antiperspirant action, and is present in human hygiene every day. In this context, the main objective of this work was to remove aluminum chlorohydroxide present in synthetic effluent through the application of an adsorbent material called Metal-Organic Frameworks (MOFs) of the type HKUST-1 using the synthesis carried out by the solvothermal method and later characterized by scanning electron microscopy (SEM,) X -ray diffraction (DRX) and thermogravimetry (TGA). In addition, the adsorption and desorption of the active was carried out, which is the main aspect to be analyzed for the effectiveness of its use as an adsorbent material. The results obtained with these characterizations made it possible to verify that the synthesized HKUST-1 type MOF presented the expected characteristics, such as color, porosity and crystallinity pattern and when applied in the removal of the aluminum compound, it adsorbed and desorbed completely, indicating to be a promising material in the removal of aluminum chlorohydroxide present in dermocosmetic effluent.