Synthesis, characterization, optical properties investigation and reusability photocatalyst capacity of AgCl‐xGO composite

• Autor(a) principal: Andrade Neto, Nivaldo Freire de
• Data de Publicação: 2019
• Outros Autores: Oliveira, Y. G., Nascimento, José Heriberto Oliveira do, Carvalho, Bruno Ribeiro de, Delmonte, Maurício Roberto Bomio, Motta, Fabiana Villela da
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRN
• Texto Completo: https://repositorio.ufrn.br/handle/123456789/43753
• topic: Reusability photocatalyst

In this work, we report the photocatalytic reuse study of AgCl-xGO composite with diferent GO concentration (x=1, 2, 4 and 8 mass %) to degrade cationic dyes. X-ray difraction and scanning electron microscopy analysis were performed to characterize the formation and morphological features of the synthesized AgCl-xGO composite. Raman spectroscopy and UV–Vis studies were used to characterize the AgCl optical properties. It was observed an Increasing in the photocatalytic efciency due to interface created by AgCl-GO composite associated to the impeding recombination of the electron–hole pair. Additionally, we notice that after 3 min of exposure to UV radiation, the AgCl-8%GO composite completely degraded the methylene blue dye while pure AgCl sample degraded 75.3%. The AgCl-8%GO composite showed stable photocatalytic activity even after the fourth cycle, indicating a high potential for application in consecutive photocatalytic cycles