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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Fast One-Pot Photosynthesis of Plasmonic Protein-Coated Silver/Silver Bromide Nanoparticles with Efficient Photocatalytic Performance

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Cruz, Geomar F. [1] ; Tofanello, Aryane [1] ; Araujo, Juscemacia N. [1] ; Nantes-Cardoso, Iseli L. [1] ; Ferreira, Fabio F. [1] ; Garcia, Wanius [1]
Total Authors: 6
[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Santo Andre, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Inorganic and Organometallic Polymers and Materials; v. 28, n. 5, p. 2056-2062, SEP 2018.
Web of Science Citations: 1

Photocatalysis is a promising method with great potential to solve several environmental challenges. Plasmonic Ag/AgBr nanoparticles (Ag/AgBr-NPs) are stable and highly efficient photocatalysts under visible light. Here, we reported for the first time the fast one-pot photosynthesis of stable protein-coated Ag/AgBr-NPs under blue light illumination. The photosynthesis was a simple process, carried out by equimolar mixing of Ag+ and Br- in the presence of protein, compatible with the green chemistry procedure. Electron microscopy showed that the Ag/AgBr-NPs were slightly heterogeneous in size and shape, and enveloped by a protein matrix responsible for colloidal stability. X-ray diffraction analysis showed that the Ag/AgBr-NPs were purely crystalline in nature. The content of metallic Ag-0 in the Ag/AgBr-NPs was easily controlled varying the ratio between Ag+ and Br- in the reaction. Plasmonic protein-coated Ag/AgBr-NPs showed photocatalytic activity for the degradation of methylene blue, which enhanced with the increase of metallic Ag-0 content, attributed to the synergistic effects among the plasmonic band, photosensibility of semiconductor and decrease in the recombination rate of the electron-hole pairs by the protein layer. (AU)

FAPESP's process: 15/17688-0 - Metallic nanostructures associated to porphyrins, cytochrome c and methylene blue: fundamental studies for applications for biological systems and energy
Grantee:Iseli Lourenço Nantes Cardoso
Support type: Regular Research Grants
FAPESP's process: 17/16976-8 - Biophysical and biochemical characterization of two bacterial enzymes involved in the conversion of ferulic acid to vanillin
Grantee:Juscemácia Nascimento Araujo
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 17/17275-3 - Studies of the mode of action of two Lytic Polysaccharide Monooxygenases from insect (order: Isoptera): molecular structure, bioinorganic chemistry and biotechnological applications
Grantee:Wanius José Garcia da Silva
Support type: Regular Research Grants
FAPESP's process: 15/02897-3 - Structural and functional analysis of the fibronectin type III domain (FnIII) of one beta-glucosidase belonging to the family GH3: interaction with large polymeric substrates and thermostability
Grantee:Wanius José Garcia da Silva
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants