Visible-light-induced self-cleaning functional fabrics using graphene oxide/carbon nitride materials

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Marta Pedrosa (Autor) FEUP; Sampaio, M.J. (Autor) FEUP; Tajana Horvat (Autor) Outra; Olga C. Nunes (Autor) FEUP; Goran Dra¸ić (Autor) Outra; Alírio E. Rodrigues (Autor) Outra; José L. Figueiredo (Autor) Outra; Cláudia G Silva (Autor) FEUP; Adrián M. T. Silva (Autor) FEUP; Joaquim L. Faria (Autor) Outra

Revista

Título: Applied Surface Science

Vol. 497 Nº 143757

ISSN: 0169-4332

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 9 Citações

INSPEC

Projetos Associados

IF/00514/2014/CP1249/CT0004 - Desafiando a síntese em química fina: uma nova abordagem utilizando fotocatalisadores isentos de metais

AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable North Region of Portugal2020

Outras Informações

ID Authenticus: P-00R-14V

DOI: 10.1016/j.apsusc.2019.143757

Abstract (EN): Functional cotton fabrics consisting of neat polymeric carbon nitride (CN) combined with graphene oxide (GO) were prepared by a simple impregnation route. The CN-based coated fabrics were characterized by several techniques. The self-cleaning efficiency of these hybrid fabrics was assessed in the photocatalytic degradation of caffeine and rhodamine B (RhB) in aqueous solutions under visible light-emitting diodes (LEDs). It was demonstrated that GO, even if present at a low % v/v(0.1%), confers to the coated fabrics higher photocatalytic efficiency for degradation of both organic pollutants in comparison with CN coated fabrics. The photoluminescence quenching observed on coated GO/CN fabrics suggests an electron transfer between the CN and GO phases. In general, both coated CN and GO/CN fabrics show high stability after three uses with intensive washes between each run. The antibacterial activity against Escherichia coli using CN and GO/CN colloids was assessed. Results showed > 99.2% of E. coli inactivation with CN-based colloids activated by visible radiation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9