Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method

Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method

Colloidal gold nanoparticles have been successfully prepared using a simple two-electrode cells connected to a DC power supply. During the electro-dissolution-reduction process, the bulk gold at the anode oxidized into gold cations which then reacted with the chloride ions to form aurochloride co...

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Main Authors: Haiza, Haroon, Yaacob, Iskandar Idris, Ahmad Azhar, Ahmad Zahirani
Format: Article
Language:English
Published: Trans Tech Publications, Switzerland 2015
Subjects:
QC Physics
Online Access:http://irep.iium.edu.my/45856/
http://irep.iium.edu.my/45856/
http://irep.iium.edu.my/45856/
http://irep.iium.edu.my/45856/1/2015_-_AMR%2C_ICAMME_2014%2C_Haiza.pdf
id iium-45856
recordtype eprints
spelling iium-458562017-11-28T10:01:12Z http://irep.iium.edu.my/45856/ Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method Haiza, Haroon Yaacob, Iskandar Idris Ahmad Azhar, Ahmad Zahirani QC Physics Colloidal gold nanoparticles have been successfully prepared using a simple two-electrode cells connected to a DC power supply. During the electro-dissolution-reduction process, the bulk gold at the anode oxidized into gold cations which then reacted with the chloride ions to form aurochloride complex. The complex ions were then reduced by the citrate ion to form colloidal gold nanoparticles. The size and shape of the nanoparticles were modulated by varying the terminal voltages. The colloidal gold nanoparticles obtained were characterized by field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM) and ultraviolet-visible spectrophotometer (UV-Vis). From FESEM analysis, it was found that by increasing the voltage, the size of colloidal gold nanoparticles produced marginally decreased. The mean sizes of gold nanoparticles were roughly about 23.5 nm, 23.2 nm and 19.3 nm for 32 V, 36 V and 40 V, respectively. TEM micrograph showed that the shape of gold nanoparticles obtained is almost spherical. The characteristic peaks of UV-Vis spectra revealed that the suspension was indeed colloidal gold nanoparticles. Trans Tech Publications, Switzerland 2015-07-20 Article PeerReviewed application/pdf en http://irep.iium.edu.my/45856/1/2015_-_AMR%2C_ICAMME_2014%2C_Haiza.pdf Haiza, Haroon and Yaacob, Iskandar Idris and Ahmad Azhar, Ahmad Zahirani (2015) Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method. Advanced Materials Research, 115. p. 386. ISSN 1022-6680 http://www.scientific.net/AMR.1115.386 10.4028/www.scientific.net/AMR.1115.386
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic QC Physics
spellingShingle QC Physics
Haiza, Haroon
Yaacob, Iskandar Idris
Ahmad Azhar, Ahmad Zahirani
Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method
description Colloidal gold nanoparticles have been successfully prepared using a simple two-electrode cells connected to a DC power supply. During the electro-dissolution-reduction process, the bulk gold at the anode oxidized into gold cations which then reacted with the chloride ions to form aurochloride complex. The complex ions were then reduced by the citrate ion to form colloidal gold nanoparticles. The size and shape of the nanoparticles were modulated by varying the terminal voltages. The colloidal gold nanoparticles obtained were characterized by field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM) and ultraviolet-visible spectrophotometer (UV-Vis). From FESEM analysis, it was found that by increasing the voltage, the size of colloidal gold nanoparticles produced marginally decreased. The mean sizes of gold nanoparticles were roughly about 23.5 nm, 23.2 nm and 19.3 nm for 32 V, 36 V and 40 V, respectively. TEM micrograph showed that the shape of gold nanoparticles obtained is almost spherical. The characteristic peaks of UV-Vis spectra revealed that the suspension was indeed colloidal gold nanoparticles.
format Article
author Haiza, Haroon
Yaacob, Iskandar Idris
Ahmad Azhar, Ahmad Zahirani
author_facet Haiza, Haroon
Yaacob, Iskandar Idris
Ahmad Azhar, Ahmad Zahirani
author_sort Haiza, Haroon
title Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method
title_short Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method
title_full Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method
title_fullStr Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method
title_full_unstemmed Effect of voltage on colloidal gold (Au) nanoparticles produced using electro-dissolution-reduction method
title_sort effect of voltage on colloidal gold (au) nanoparticles produced using electro-dissolution-reduction method
publisher Trans Tech Publications, Switzerland
publishDate 2015
url http://irep.iium.edu.my/45856/
http://irep.iium.edu.my/45856/
http://irep.iium.edu.my/45856/
http://irep.iium.edu.my/45856/1/2015_-_AMR%2C_ICAMME_2014%2C_Haiza.pdf
first_indexed 2023-09-18T21:05:16Z
last_indexed 2023-09-18T21:05:16Z
_version_ 1777410891095998464

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