BENTO, RODRIGO T.CORREA, OLANDIR V.GASTELOIS, PEDRO L.PILLIS, MARINA F.2024-04-192024-04-192024BENTO, RODRIGO T.; CORREA, OLANDIR V.; GASTELOIS, PEDRO L.; PILLIS, MARINA F. VIS-active TiO2 films decorated by expanded graphite: impact of the exfoliation time on the photocatalytic behaviour. <b>Environmental Technology</b>, v. 45, n. 10, p. 2022-2033, 2024. DOI: <a href="https://dx.doi.org/10.1080/09593330.2022.2163708">10.1080/09593330.2022.2163708</a>. Disponível em: https://repositorio.ipen.br/handle/123456789/48051.0959-3330https://repositorio.ipen.br/handle/123456789/48051TiO2/C nanocomposite films were applied on water treatment. Expanded graphite nanosheets (EG) were obtained by UVC-assisted liquid-phase exfoliation technique, without the addition of acids, surfactants, or aggressive oxidizing agents, which characterizes the process as an eco-friendly method. The carbon nanosheets were synthesized directly from graphite bulk at different times and deposited on TiO2 films surface by airbrush spray coating method, forming a TiO2/C heterojunction. The increase in the exfoliation time promoted a more efficient photocatalytic dye removal under visible light. Morphological modifications, changes in the electronic structure, and wide range of light absorption were observed from the TiO2/C heterojunction formation. The results showed that hybrid TiO2/C supported photocatalyst is a promise alternative for practical photocatalytic applications under sunlight.2022-2033openAccessphotocatalysisgraphitetitanium oxidesliquidsheterojunctionsArtigo de periódico104510.1080/09593330.2022.2163708https://orcid.org/0000-0002-1423-871X41.371.67