Rapid Synthesis via Green Route of Plasmonic Protein-Coated Silver/Silver Chloride Nanoparticles with Controlled Contents of Metallic Silver and Application for Dye Remediation

Autor(es)

Araujo, Juscemacia N. ^[1] ; Tofanello, Aryane ^[1] ; Sato, Juliana A. P. ^[1] ; Cruz, Luciano S. ^[1] ; Nantes-Cardoso, Iseli L. ^[1] ; Ferreira, Fabio F. ^[1] ; Batista, Bruno L. ^[1] ; Garcia, Wanius ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed ABC UFABC, Ctr Ciencias Nat & Humanas, Santo Andre, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Inorganic and Organometallic Polymers and Materials; v. 28, n. 6, p. 2812-2818, NOV 2018.
• Citações Web of Science: 2

Resumo

The use of proteins for surface modifications of hybrid silver nanoparticles (NPs) is still poorly explored. In this study, we report a rapid green route synthesis of plasmonic protein-coated silver/silver chloride NPs (Ag/AgCl NPs) with controlled contents of metallic Ag (Ag-0) using a modified photo-irradiation method. The contents of Ag-0 were easily controlled varying the proportion between Ag+ and Cl- in the syntheses reactions. Interestingly, the Ag-0 content in the protein-coated Ag/AgCl NPs increased with increasing of Cl- concentration. The synthesized plasmonic protein-coated Ag/AgCl NPs exhibited significant photocatalytic activity in the reduction of methylene blue dye under light irradiation due to the synergy between the metallic plasmonic effect and the semiconducting AgCl. However, a significant decrease in the content of semiconducting AgCl resulted in an undesirable synergistic effect. In our green route syntheses, all the properties of Ag/AgCl NPs were maintained with the addition of the advantages of the protein layer, which facilitates the dye adsorption and could contribute, along with Ag-0, to reduce the electron-hole pairs recombination rate. Thus, with a simple and fast synthesis strategy these organic-inorganic hybrid NPs have the potential for applications for environmental remediation. (AU)

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• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular