Preparation and characterization of nano gold supported over montmorillonite clays

P. V. Suraja, N. N. Binitha, Zahira Yaakob, P. P. Silija

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The use of montmorillonite clays as a matrix, or as a host, for obtaining intercalated/supported metal particles has potential applications in catalysis and other areas. The gold nanoparticles were obtained from the most common anionic gold precursor HAuCl43H2O by deposition-precipitation (DP) methods. However, it is difficult to prepare nanoscale gold catalysts supported on silica surfaces with lower isoelectric point (IEP). Homogeneous precipitation method using urea also fails on silica surfaces. Reasons for the inefficiency of these methods are the negative charge of the metal precursor as well as the support surface and the high pH required for depositing gold nanoparticles. In the present work, we use glucose as the reductant in the presence of stabilizer for preparation of nano gold supported on montmorillonite clay. There is no need of increasing the pH of the solution to reduce the Au3+ ions. The prepared systems are characterized using various techniques such as using X-ray fluorescence (XRF), UV-VIS Diffuse reflectance spectra (DRS) and Fourier Transform infra red spectra (FTIR) to prove the efficiency of the present method.

Original languageEnglish
Title of host publicationIOP Conference Series: Materials Science and Engineering
Volume17
Edition1
DOIs
Publication statusPublished - 2011
EventConference on Advanced Materials and Nanotechnology, CAMAN 2009 - Kuala Lumpur, Malaysia
Duration: 3 Nov 20095 Nov 2009

Other

OtherConference on Advanced Materials and Nanotechnology, CAMAN 2009
CountryMalaysia
CityKuala Lumpur
Period3/11/095/11/09

Fingerprint

Bentonite
Clay minerals
Gold
Clay
Silicon Dioxide
Metals
Silica
Nanoparticles
Reducing Agents
Catalyst supports
Urea
Catalysis
Glucose
Fourier transforms
Fluorescence
clay
Ions
Infrared radiation
X rays

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Suraja, P. V., Binitha, N. N., Yaakob, Z., & Silija, P. P. (2011). Preparation and characterization of nano gold supported over montmorillonite clays. In IOP Conference Series: Materials Science and Engineering (1 ed., Vol. 17). [012019] https://doi.org/10.1088/1757-899X/17/1/012019

Preparation and characterization of nano gold supported over montmorillonite clays. / Suraja, P. V.; Binitha, N. N.; Yaakob, Zahira; Silija, P. P.

IOP Conference Series: Materials Science and Engineering. Vol. 17 1. ed. 2011. 012019.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Suraja, PV, Binitha, NN, Yaakob, Z & Silija, PP 2011, Preparation and characterization of nano gold supported over montmorillonite clays. in IOP Conference Series: Materials Science and Engineering. 1 edn, vol. 17, 012019, Conference on Advanced Materials and Nanotechnology, CAMAN 2009, Kuala Lumpur, Malaysia, 3/11/09. https://doi.org/10.1088/1757-899X/17/1/012019
Suraja PV, Binitha NN, Yaakob Z, Silija PP. Preparation and characterization of nano gold supported over montmorillonite clays. In IOP Conference Series: Materials Science and Engineering. 1 ed. Vol. 17. 2011. 012019 https://doi.org/10.1088/1757-899X/17/1/012019
Suraja, P. V. ; Binitha, N. N. ; Yaakob, Zahira ; Silija, P. P. / Preparation and characterization of nano gold supported over montmorillonite clays. IOP Conference Series: Materials Science and Engineering. Vol. 17 1. ed. 2011.
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