Tropical Journal of Pharmaceutical Research

Original Research Article | OPEN ACCESS

Novel green synthesis and characterization of nanopolymer porous gold oxide nanoparticles

Manal A Awad¹ , Khalid MO Ortashi², Awatif A Hendi³, Nada E Eisa⁴, Fatimah Al-Abbas⁵, Fatimah Al-Abbas⁵,

¹King Abdullah Institute for Nanotechnology; ²Department of Chemical Engineering; ³Physics Department, King Saud University, Riyadh; ⁴Department of Physics, University of Dammam, Dammam; ⁵Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia.

For correspondence:- Manal Awad Email: ahindi@ksu.edu.sa

Received: 13 March 2015 Accepted: 30 August 2015 Published: 31 October 2015

Citation: Awad MA, Ortashi KM, Hendi AA, Eisa NE, Al-Abbas F, Al-Abbas F, Novel green synthesis and characterization of nanopolymer porous gold oxide nanoparticles. Trop J Pharm Res 2015; 14(10):1763-1768 doi: 10.4314/tjpr.v14i10.5

© 2015 The authors.
This is an Open Access article that uses a funding model which does not charge readers or their institutions for access and distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0) and the Budapest Open Access Initiative (http://www.budapestopenaccessinitiative.org/read), which permit unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited..

Abstract

Purpose: To develop a novel approach to green synthesis of nano-polymer porous gold oxide nanoparticles, and examine the effects of the temperatures on their surface.

Methods: Green synthesis of nano-polymer porous gold oxide nanoparticles (GONPs) using cetyle trimethylammonium bromide (CTAB) surfactant with a mixture of Olea europaea fruit and Acacia Nilotica extracts, was performed using sol-gel method. The nanoporous particles were characterized by UV (ultraviolet (UV) visible spectroscopy and dynamic light scattering (DLS) while a zetasizer was applied to determine their average particle size. Their surface morphology and shape were assessed by transmission electron microscopy (TEM) and scanning election microscopy (SEM) while surface area was measured using nitrogen gas adsorption method.

Results: TEM and SEM images showed a smooth, cylindrical or spherical, and cluster shapes, and porous surface morphology. Increase in calcination temperature resulted in increase in surface area and pore volume of nanoparticles. This feature yielded GONPs that were unique with a high surface area of 146.706 m²/g.

Conclusion: The approach used in this study constitutes a new and rapid green synthesis of porous nanoparticles of gold oxide under simple conditions. Furthermore, increase in GONPs surface area is enhanced by increase in calcination temperature.

Keywords: Gold oxide, Nanoporous, Green synthesis, Olea europaea, Acacia Nilotica, Surface area, Nanopolymer, Surface morphology