A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles
The water soluble photoinitiator (PI) 4-(trimethyl ammonium methyl) benzophenone chloride is used for the first time in the synthesis of silver nanoparticles (AgNPs). A new green synthesis method involves using PI/UV system, carboxymethyl starch (CMS), silver nitrate, and water. A mechanism of the r...
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Online Access: | http://dx.doi.org/10.1155/2014/514563 |
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doaj-454acfdd95ff46d68d9608c33749e06c2020-11-25T01:22:57ZengHindawi LimitedThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/514563514563A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver NanoparticlesM. A. El-Sheikh0National Research Centre, Textile Research Division, El-Behouth Street, Dokki, P.O. Box 12311, Giza, EgyptThe water soluble photoinitiator (PI) 4-(trimethyl ammonium methyl) benzophenone chloride is used for the first time in the synthesis of silver nanoparticles (AgNPs). A new green synthesis method involves using PI/UV system, carboxymethyl starch (CMS), silver nitrate, and water. A mechanism of the reduction of silver ions to AgNPs by PI/UV system as well as by the newly born aldehydic groups was proposed. The synthesis process was assessed by UV-vis spectra and TEM of AgNPs colloidal solution. The highest absorbance was obtained using CMS, PI and AgNO3 concentrations of 10 g/L, 1 g/L, and 1 g/L, respectively; 40°C; 60 min; pH 7; and a material : liquor ratio 1 : 20. AgNPs so-obtained were stable in aqueous solution over a period of three weeks at room temperature (~25°C) and have round shape morphology. The sizes of synthesized AgNPs were in the range of 1–21 nm and the highest counts % of these particles were for particles of 6–10 and 1–3 nm, respectively.http://dx.doi.org/10.1155/2014/514563 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. A. El-Sheikh |
spellingShingle |
M. A. El-Sheikh A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles The Scientific World Journal |
author_facet |
M. A. El-Sheikh |
author_sort |
M. A. El-Sheikh |
title |
A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles |
title_short |
A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles |
title_full |
A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles |
title_fullStr |
A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles |
title_full_unstemmed |
A Novel Photosynthesis of Carboxymethyl Starch-Stabilized Silver Nanoparticles |
title_sort |
novel photosynthesis of carboxymethyl starch-stabilized silver nanoparticles |
publisher |
Hindawi Limited |
series |
The Scientific World Journal |
issn |
2356-6140 1537-744X |
publishDate |
2014-01-01 |
description |
The water soluble photoinitiator (PI) 4-(trimethyl ammonium methyl) benzophenone chloride is used for the first time in the synthesis of silver nanoparticles (AgNPs). A new green synthesis method involves using PI/UV system, carboxymethyl starch (CMS), silver nitrate, and water. A mechanism of the reduction of silver ions to AgNPs by PI/UV system as well as by the newly born aldehydic groups was proposed. The synthesis process was assessed by UV-vis spectra and TEM of AgNPs colloidal solution. The highest absorbance was obtained using CMS, PI and AgNO3 concentrations of 10 g/L, 1 g/L, and 1 g/L, respectively; 40°C; 60 min; pH 7; and a material : liquor ratio 1 : 20. AgNPs so-obtained were stable in aqueous solution over a period of three weeks at room temperature (~25°C) and have round shape morphology. The sizes of synthesized AgNPs were in the range of 1–21 nm and the highest counts % of these particles were for particles of 6–10 and 1–3 nm, respectively. |
url |
http://dx.doi.org/10.1155/2014/514563 |
work_keys_str_mv |
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