Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition

Worm-like nanorods and nanospheres of silver have been synthesized by photochemical decomposition of silver oxalate in water by UV irradiation in the presence of CTAB and PVP, respectively. No external seeds have been employed for the synthesis of Ag nanorods. The synthesized Ag colloids have been c...

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Detalles Bibliográficos
Autores principales: Navaladian, S, Viswanathan, B, Varadarajan, TK, Viswanath, RP
Formato: Texto
Lenguaje:English
Publicado: Springer 2009
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2893776/
https://www.ncbi.nlm.nih.gov/pubmed/20596513
http://dx.doi.org/10.1007/s11671-009-9267-0
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author Navaladian, S
Viswanathan, B
Varadarajan, TK
Viswanath, RP
author_facet Navaladian, S
Viswanathan, B
Varadarajan, TK
Viswanath, RP
author_sort Navaladian, S
collection PubMed
description Worm-like nanorods and nanospheres of silver have been synthesized by photochemical decomposition of silver oxalate in water by UV irradiation in the presence of CTAB and PVP, respectively. No external seeds have been employed for the synthesis of Ag nanorods. The synthesized Ag colloids have been characterized by UV-visible spectra, powder XRD, HRTEM, and selected area electron diffraction (SAED). Ag nanospheres of average size around 2 nm have been obtained in the presence of PVP. XRD and TEM analyses revealed that top and basal planes of nanorods are bound with {111} facets. Williamson–Hall plot has revealed the presence of defects in the Ag nanospheres and nanorods. Formation of defective Ag nanocrystals is attributed to the heating effect of UV-visible irradiation.
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spelling pubmed-28937762010-06-30 Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition Navaladian, S Viswanathan, B Varadarajan, TK Viswanath, RP Nanoscale Res Lett Nano Express Worm-like nanorods and nanospheres of silver have been synthesized by photochemical decomposition of silver oxalate in water by UV irradiation in the presence of CTAB and PVP, respectively. No external seeds have been employed for the synthesis of Ag nanorods. The synthesized Ag colloids have been characterized by UV-visible spectra, powder XRD, HRTEM, and selected area electron diffraction (SAED). Ag nanospheres of average size around 2 nm have been obtained in the presence of PVP. XRD and TEM analyses revealed that top and basal planes of nanorods are bound with {111} facets. Williamson–Hall plot has revealed the presence of defects in the Ag nanospheres and nanorods. Formation of defective Ag nanocrystals is attributed to the heating effect of UV-visible irradiation. Springer 2009-02-21 /pmc/articles/PMC2893776/ /pubmed/20596513 http://dx.doi.org/10.1007/s11671-009-9267-0 Text en Copyright ©2009 to the authors
spellingShingle Nano Express
Navaladian, S
Viswanathan, B
Varadarajan, TK
Viswanath, RP
Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition
title Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition
title_full Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition
title_fullStr Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition
title_full_unstemmed Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition
title_short Fabrication of Worm-Like Nanorods and Ultrafine Nanospheres of Silver Via Solid-State Photochemical Decomposition
title_sort fabrication of worm-like nanorods and ultrafine nanospheres of silver via solid-state photochemical decomposition
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2893776/
https://www.ncbi.nlm.nih.gov/pubmed/20596513
http://dx.doi.org/10.1007/s11671-009-9267-0
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