TITLE

Study of Colloidal Gold Synthesis Using Turkevich Method

AUTHOR(S)
Rohiman, Asep; Anshori, Isa; Surawijaya, Akhmadi; Idris, Irman
PUB. DATE
December 2011
SOURCE
AIP Conference Proceedings;12/10/2011, Vol. 1415 Issue 1, p39
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The synthesis of colloidal gold or Au-nanoparticles (Au-NPs) by reduction of chloroauric acid (HAuCl4) with sodium citrate was done using Turkevich method. We prepare HAuCl4 solution by dissolving gold wires (99.99%) into aqua regia solution. To initiate the Au-NPs synthesis 0.17 ml of 1 % chloroauric acid solution was heated to the boiling point and then 10 ml of 1 % sodium citrate was added to the boiling solution with a constant stirring in order to maintain a homogenous solution. A color of faint gray was observed in the solution approximately one minute and in a period of 2-3 minutes later, it further darkened to deep wine and red color. It showed that the gold solution has reduced to Au-NPs. The effect of process temperature on the size of Au-NPs prepared by sodium citrate reduction has also been investigated. With increasing temperature of Au-NPs synthesis, smaller-size Au-NPs were obtained. The higher temperatures shorten the time needed to achieve activation energy for reduction process. The resulting Au-NPs has been characterized by scanning Electron Microscope (SEM), showing the size of Au-NPs average diameter is ~20-27 nm. The resulting colloidal gold will be used as catalyst for Si nanowires growth using VLS method.
ACCESSION #
69604093

Tags: INORGANIC compounds -- Synthesis;  COLLOIDAL gold;  REDUCTION (Chemistry);  CITRATES;  SOLUTION (Chemistry);  GOLD wire;  BOILING-points;  TEMPERATURE effect;  SCANNING electron microscopes

 

Related Articles

  • Room Temperature, High-yield Synthesis of Block Copolymer-mediated Gold Nanoparticles. Ray, Debes; Aswal, V. K.; Kohlbrecher, J. // AIP Conference Proceedings;12/1/2010, Vol. 1313 Issue 1, p192 

    We report the high-yield synthesis of gold nanoparticles in block copolymer-mediated synthesis where the nanoparticles have been synthesized from hydrogen tetrachloroaureate (III) hydrate (HAuCl4�3H2O) using P85 (EO26PO39EO26) block copolymers in aqueous solution at room temperature. The...

  • One-pot synthesis of uniform hollow cuprous oxide spheres fabricated by single-crystalline particles via a simple solvothermal route. Li, Shi-Kuo; Li, Chuan-Hao; Huang, Fang-Zhi; Wang, Yang; Shen, Yu-Hua; Xie, An-Jian; Wu, Qiong // Journal of Nanoparticle Research;Jul2011, Vol. 13 Issue 7, p2865 

    Uniform CuO hollow spheres fabricated by single-crystalline particles (smaller than 20 nm) are facile synthesized in ethylene glycol (EG) solution by a simple solvothermal route without using pre-fabricated templates and reductive agents. EG in this protocol is not only used as a solvent,...

  • One-step growth of gold nanorods using a �-diketone reducing agent. Tollan, Christopher; Echeberria, Jon; Marcilla, Rebeca; Pomposo, Jos�; Mecerreyes, David // Journal of Nanoparticle Research;Jul2009, Vol. 11 Issue 5, p1241 

    Abstract��The synthesis and characterisation of gold nanorods have been carried out by reduction of the gold salt HAuCl4. This has been done using a single reducing agent, acetylacetone, rather than the two reducing agents, sodium borohydride and ascorbic acid, normally required by...

  • BIOLOGICAL SYNTHESIS OF Au, Ag AND Au-Ag BIMETALLIC NANOPARTICLES BY ?-AMYLASE. Moshfegh, M.; Forootanfar, H.; Zare, B.; Shahverdi, A. R.; Zarrini, G.; Faramarzi, M. A. // Digest Journal of Nanomaterials & Biostructures (DJNB);Jul-Sep2011, Vol. 6 Issue 3, p1419 

    In recent years, studies on the improvement of biological techniques for synthesis of nanoparticles have been extensively increased due to the harmful effects of chemical preparation methods. In the present work, a nontoxic, green and eco-friendly protocol for the synthesis of metal...

  • Synthesis of hydrophilic copper nanoparticles: effect of reaction temperature. P. Khanna; Priyesh More; Jagdish Jawalkar; Yogesh Patil; N. Koteswar Rao // Journal of Nanoparticle Research;May2009, Vol. 11 Issue 4, p793 

    Abstract��Synthesis of hydrophilic copper nanoparticles with an additional coating of an hydrophilic polymer has been carried out by use of hydrazine hydrate (HH) and sodium formaldehyde sulfoxylate (SFS) in aqueous medium. The effect of temperature on nanoparticles when synthesized in...

  • Influence of the synthesis media in the properties of CuO obtained by microwave-assisted hydrothermal method. Maul, J.; Brito, A.; Oliveira, A.; Lima, S.; Maurera, M.; Keyson, D.; Souza, A.; Santos, I. // Journal of Thermal Analysis & Calorimetry;Nov2011, Vol. 106 Issue 2, p519 

    Copper monoxide (CuO) was successfully obtained by microwave-assisted hydrothermal method, using different conditions-in a solution without base, in a solution alkalinized with NaOH or with NHOH. The powders were analyzed by thermal analysis (TG/DTA), X-ray diffraction (XRD), infrared...

  • Synthesis and fritting of magnesia silicate composite powder. Leonov, V.; Afonina, G.; Popova, O. // Refractories & Industrial Ceramics;May2011, Vol. 52 Issue 1, p32 

    Results are provided for a study of the phase composition and fritting of magnesia silicate composite powder with a SiO content from 32 to 70%. The powder is prepared by a sol-gel method based on inorganic precursors. Optimum synthesis conditions and powder composition are indicated, providing a...

  • Preparation of gold nanoparticles (GNP) aqueous suspensions by a new method involving Tiron. Hori, Mamiko; Pagnoux, C�cile; Baumard, Jean-Fran�ois; Nogami, Masayuki // Journal of Materials Science;Jan2007, Vol. 42 Issue 1, p80 

    A new method is proposed to produce gold nanoparticles (GNP) by in situ reduction of a gold salt dissolved in water. The reducing agent used is Tiron instead of the citrate anion most often mentioned in literature. The influence of various parameters has been investigated, such as the content of...

  • Regenerative synthesis of copper nanoparticles by photoirradiation. Nishida, N.; Miyashita, A.; Hashimoto, N.; Murayama, H.; Tanaka, H. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Jul2011, Vol. 63 Issue 2, p307 

    Copper nanoparticles have attracted much attention because of their low cost, and because their use can contribute toward the sustainability of metal resources. In this study, copper nanoparticles were synthesized by the photoirradiation of copper acetate solution at room temperature. The...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics