Core/Shell Ag/SnO2 Nanowires for Visible Light Photocatalysis
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Department of Materials Technology and Chemistry, Faculty of Chemistry, The University of Lodz, Pomorska 163, 90-236 Lodz, Poland
2
Department of Chemical Textiles Technologies, ŁUKASIEWICZ-Textile Research Institute, 5/15 Brzezinska Street, 92-103 Lodz, Poland
*
Authors to whom correspondence should be addressed.
Academic Editors: Sophie Hermans and Julien Mahy
Catalysts 2022, 12(1), 30; https://doi.org/10.3390/catal12010030
Received: 9 November 2021
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Revised: 22 December 2021
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Accepted: 24 December 2021
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Published: 28 December 2021
(This article belongs to the Special Issue Metallic or Metallic Oxide (Photo)catalysts for Environmental Applications)
This study presents core/shell Ag/SnO2 nanowires (Ag/SnO2NWs) as a new photocatalyst for the rapid degradation of organic compounds by the light from the visible range. AgNWs after coating with a SnO2 shell change optical properties and, due to red shift of the absorbance maxima of the longitudinal and transverse surface plasmon resonance (SPR), modes can be excited by the light from the visible light region. Rhodamine B and malachite green were respectively selected as a model organic dye and toxic one that are present in the environment to study the photodegradation process with a novel one-dimensional metal/semiconductor Ag/SnO2NWs photocatalyst. The degradation was investigated by studying time-dependent UV/Vis absorption of the dye solution, which showed a fast degradation process due to the presence of Ag/SnO2NWs photocatalyst. The rhodamine B and malachite green degraded after 90 and 40 min, respectively, under irradiation at the wavelength of 450 nm. The efficient photocatalytic process is attributed to two phenomenon surface plasmon resonance effects of AgNWs, which allowed light absorption from the visible range, and charge separations on the Ag core and SnO2 shell interface of the nanowires which prevents recombination of photogenerated electron-hole pairs. The presented properties of Ag/SnO2NWs can be used for designing efficient and fast photodegradation systems to remove organic pollutants under solar light without applying any external sources of irradiation.
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Keywords:
AgNWs; SnO2; silver nanowires; core-shell nanostructures; photocatalytic activity; visible-light photocatalysis
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MDPI and ACS Style
Baranowska-Korczyc, A.; Mackiewicz, E.; Ranoszek-Soliwoda, K.; Grobelny, J.; Celichowski, G. Core/Shell Ag/SnO2 Nanowires for Visible Light Photocatalysis. Catalysts 2022, 12, 30. https://doi.org/10.3390/catal12010030
AMA Style
Baranowska-Korczyc A, Mackiewicz E, Ranoszek-Soliwoda K, Grobelny J, Celichowski G. Core/Shell Ag/SnO2 Nanowires for Visible Light Photocatalysis. Catalysts. 2022; 12(1):30. https://doi.org/10.3390/catal12010030
Chicago/Turabian StyleBaranowska-Korczyc, Anna, Ewelina Mackiewicz, Katarzyna Ranoszek-Soliwoda, Jaroslaw Grobelny, and Grzegorz Celichowski. 2022. "Core/Shell Ag/SnO2 Nanowires for Visible Light Photocatalysis" Catalysts 12, no. 1: 30. https://doi.org/10.3390/catal12010030
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