Silver nanostructure-decorated hierarchical titanium dioxide nanoflowers for SERS and photocatalytic applications

Nuray Serginay; Hayrunnisa Mazlumoglu; Asli Yilmaz; Mehmet Yilmaz

Catalysis Communications (May 2023)

Silver nanostructure-decorated hierarchical titanium dioxide nanoflowers for SERS and photocatalytic applications

Nuray Serginay,
Hayrunnisa Mazlumoglu,
Asli Yilmaz,
Mehmet Yilmaz

Affiliations

Nuray Serginay: Department of Chemical Engineering, Ataturk University, 25240 Erzurum, Turkey
Hayrunnisa Mazlumoglu: Department of Chemical Engineering, Ataturk University, 25240 Erzurum, Turkey
Asli Yilmaz: Department of Molecular Biology and Genetics, Ataturk University, 25240 Erzurum, Turkey
Mehmet Yilmaz: Department of Chemical Engineering, Ataturk University, 25240 Erzurum, Turkey; Department of Nanoscience and Nanoengineering, Ataturk University, 25240 Erzurum, Turkey; Corresponding author at: Department of Chemical Engineering, Ataturk University, 25240 Erzurum, Turkey.

Journal volume & issue: Vol. 178
p. 106672

Abstract

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In this study, we propose the synthesis of silver (Ag) nanoparticle decorated TiO2 nanoflowers (TNFs) using a polymeric conformal thin film of 3,4-dihydroxyphenyl-L-alanine (PLDOPA). The size, as well as interparticle distance of the decorated Ag nanostructures, were tuned by simply changing the number of supplied Ag ions. The resultant nanocomposite system (TNF@PLDOPA@Ag) showed unique SERS activity with high reproducibility and an enhancement factor of 4.2 × 107. Also, as an ideal photocatalytic system, the TNF@PLDOPA@Ag enabled the catalytic degradation of malachite green under visible light irradiation.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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