PILARIZAÇÃO DE ARGILA COM ZIRCÔNIO PARA FOTOESTABILIZAÇÃO DE ANTIBIÓTICO: UMA ESTRATÉGIA NA REMEDIAÇÃO AMBIENTAL

• DOI: 10.22533/at.ed.0922310105

• Palavras-chave: saponita pilarizada; Fotólise de fármacos; fotoestabilidade; remediação Ambiental.

• Keywords: Pillared saponite; Photolysis of drugs; photostability; Environmental remediation.

• Abstract: Combating emerging pollutants is one of the most relevant problems for researchers, as they are substances used in our day-to-day life, such as medicines, food additives, fertilizers, metabolites, regulators, etc. Clay minerals are widely used in the pillaring with metals, as they have their adsorption capacity improved when pillared, due to the increase of their surface area. The objective of this work is the pillarization of saponite clay with zirconium, for subsequent adsorption of the drug ciprofloxacin in order to improve their photostability. The results of Drx, Mev and FTIR demonstrate that the pilzarization of the clay with the metal occurred successfully, increasing the d001 basal spacing from 1.12 nm to 1.64 nm. The antibacterial activity tests showed that cirpofloxacin adsorbed on saponite maintained its antibacterial activity against gram-negative and gram-positive bacteria before and after 200 hours of exposure to ultraviolet radiation.