Tensoativo SEAR como agente redutor e estabilizador de nanopartículas de prata

• Autor(a) principal: Costa, Isadora Dantas
• Data de Publicação: 2016
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UFRN
• Texto Completo: https://repositorio.ufrn.br/handle/123456789/38359
• topic: Nanopartículas de prata.; Corrosion.; 9,10-epóxi-12 hidroxioctadecanoato de sódio.; Química-verde.; Corrosão.; Silver nanoparticles.; Green chemistry.; Sodium 9,10-epoxy-12-hydroxy octadecanoate.

Silver nanoparticles have been synthesized in several ways, between them the methods of synthesis who are agree with the parameters of green chemisty stands out, trying to make these synthesis are less harmful to the environment. This paper deals with synthesis of silver NPs by green pathway, using the surfactant sodium 9,10-epoxy-12-hydroxy octadecanoate, a surfactant derived from vegetable origin which act as a reducing agent and stabilizer agent of NPsAg. From the UV-Vis was possible to confirm the formation of nanoparticles in spherical shape and evaluate their formation as the concentration of SEAR used for their synthesis. The Transmission electron microscopy method could estimate the size of NPsAg regarding on the concentration of surfactant used, showing that concentration before the MCC produce NPs with smaller sizes than those synthesized with concentrations after the MCC. The Infrared spectroscopy with ATR presented a displacement of the asymmetric stretch band in region carboxylate region at 1564 cm-1, identifying that the NPsAg interact with the surfactant from this functional group. The results showed efficiency in the SEAR use to synthesize NPsAg having as future perspectives use the material as a corrosion inhibitor.