Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation.
Colloidal silver nanoparticles were synthesized by γ-irradiation-induced reduction method of an aqueous solution containing silver nitrate as a precursor in various concentrations between 7.40×10−4 and 1.84×10−3 M, polyvinyl pyrrolidone for capping colloidal nanoparticles, isopropanol as radical sca...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2010
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/15202/ http://psasir.upm.edu.my/id/eprint/15202/1/Influence%20of%20dose%20on%20particle%20size%20of%20colloidal%20silver%20nanoparticles%20synthesized%20by%20gamma%20radiation.pdf |
| _version_ | 1848842610482872320 |
|---|---|
| author | Naghavi, Kazem Saion, Elias Rezaee, Khadijah Mat Yunus, Wan Mahmood |
| author_facet | Naghavi, Kazem Saion, Elias Rezaee, Khadijah Mat Yunus, Wan Mahmood |
| author_sort | Naghavi, Kazem |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Colloidal silver nanoparticles were synthesized by γ-irradiation-induced reduction method of an aqueous solution containing silver nitrate as a precursor in various concentrations between 7.40×10−4 and 1.84×10−3 M, polyvinyl pyrrolidone for capping colloidal nanoparticles, isopropanol as radical scavenger of hydroxyl radicals and deionised water as a solvent. The irradiations were carried out in a 60Co γ source chamber at doses up to 70 kGy. The optical absorption spectra were measured using UV–vis spectrophotometer and used to study the particle distribution and electronic structure of silver nanoparticles. As the radiation dose increases from 10 to 70 kGy, the absorption intensity increases with increasing dose. The absorption peak λmax blue shifted from 410 to 403 nm correspond to the increase of absorption conduction electron energy from 3.02 to 3.08 eV, indicating the particle size decreases with increasing dose. The particle size was determined by photon cross correlation spectroscopy and the results showed that the particle diameter decreases exponentially with the increase of dose. The transmission electron microscopy images were taken at doses of 20 and 60 kGy and the results confirmed that as the dose increases the diameter of colloidal silver nanoparticle decreases and the particle distribution increases.
|
| first_indexed | 2025-11-15T08:01:52Z |
| format | Article |
| id | upm-15202 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T08:01:52Z |
| publishDate | 2010 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-152022015-12-16T08:06:04Z http://psasir.upm.edu.my/id/eprint/15202/ Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. Naghavi, Kazem Saion, Elias Rezaee, Khadijah Mat Yunus, Wan Mahmood Colloidal silver nanoparticles were synthesized by γ-irradiation-induced reduction method of an aqueous solution containing silver nitrate as a precursor in various concentrations between 7.40×10−4 and 1.84×10−3 M, polyvinyl pyrrolidone for capping colloidal nanoparticles, isopropanol as radical scavenger of hydroxyl radicals and deionised water as a solvent. The irradiations were carried out in a 60Co γ source chamber at doses up to 70 kGy. The optical absorption spectra were measured using UV–vis spectrophotometer and used to study the particle distribution and electronic structure of silver nanoparticles. As the radiation dose increases from 10 to 70 kGy, the absorption intensity increases with increasing dose. The absorption peak λmax blue shifted from 410 to 403 nm correspond to the increase of absorption conduction electron energy from 3.02 to 3.08 eV, indicating the particle size decreases with increasing dose. The particle size was determined by photon cross correlation spectroscopy and the results showed that the particle diameter decreases exponentially with the increase of dose. The transmission electron microscopy images were taken at doses of 20 and 60 kGy and the results confirmed that as the dose increases the diameter of colloidal silver nanoparticle decreases and the particle distribution increases. Elsevier 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15202/1/Influence%20of%20dose%20on%20particle%20size%20of%20colloidal%20silver%20nanoparticles%20synthesized%20by%20gamma%20radiation.pdf Naghavi, Kazem and Saion, Elias and Rezaee, Khadijah and Mat Yunus, Wan Mahmood (2010) Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. Radiation Physics and Chemistry, 79 (12). pp. 1203-1208. ISSN 0969-806X 10.1016/j.radphyschem.2010.07.009 English |
| spellingShingle | Naghavi, Kazem Saion, Elias Rezaee, Khadijah Mat Yunus, Wan Mahmood Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. |
| title | Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. |
| title_full | Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. |
| title_fullStr | Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. |
| title_full_unstemmed | Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. |
| title_short | Influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. |
| title_sort | influence of dose on particle size of colloidal silver nanoparticles synthesized by gamma radiation. |
| url | http://psasir.upm.edu.my/id/eprint/15202/ http://psasir.upm.edu.my/id/eprint/15202/ http://psasir.upm.edu.my/id/eprint/15202/1/Influence%20of%20dose%20on%20particle%20size%20of%20colloidal%20silver%20nanoparticles%20synthesized%20by%20gamma%20radiation.pdf |