Int. J. Mol. Sci. 2015, 16(1), 1131-1142; doi:10.3390/ijms16011131
Pulicaria glutinosa Extract: A Toolbox to Synthesize Highly Reduced Graphene Oxide-Silver Nanocomposites
Abdulhadi H. Al-Marri 1, Mujeeb Khan 1, Merajuddin Khan 1, Syed F. Adil 1
, Abdulrahman Al-Warthan 1, Hamad Z. Alkhathlan 1, Wolfgang Tremel 2, Joselito P. Labis 3, Mohammed Rafiq H. Siddiqui 1,*
and Muhammad N. Tahir 2,*
, Abdulrahman Al-Warthan 1, Hamad Z. Alkhathlan 1, Wolfgang Tremel 2, Joselito P. Labis 3, Mohammed Rafiq H. Siddiqui 1,*
and Muhammad N. Tahir 2,*
1
Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
2
Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Mainz 55122, Germany
3
King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia
*
Authors to whom correspondence should be addressed.
Academic Editor: Bing Yan
Received: 11 December 2014 / Accepted: 29 December 2014 / Published: 5 January 2015
(This article belongs to the Special Issue Bioactive Nanoparticles 2014)
Abstract
A green, one-step approach for the preparation of graphene/Ag nanocomposites (PE-HRG-Ag) via simultaneous reduction of both graphene oxide (GRO) and silver ions using Pulicaria glutinosa plant extract (PE) as reducing agent is reported. The plant extract functionalizes the surfaces of highly reduced graphene oxide (HRG) which helps in conjugating the Ag NPs to HRG. Increasing amounts of Ag precursor enhanced the density of Ag nanoparticles (NPs) on HRG. The preparation of PE-HRG-Ag nanocomposite is monitored by using ultraviolet–visible (UV-Vis) spectroscopy, powder X-ray diffraction (XRD), and energy dispersive X-ray (EDX). The as-prepared PE-HRG-Ag nanocomposities display excellent surface-enhanced Raman scattering (SERS) activity, and significantly increased the intensities of the Raman signal of graphene. View Full-TextKeywords:
graphene; silver nanoparticles; plant extract; nanocomposites; surface enhance Raman scattering (SERS)
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Al-Marri, A.H.; Khan, M.; Khan, M.; Adil, S.F.; Al-Warthan, A.; Alkhathlan, H.Z.; Tremel, W.; Labis, J.P.; Siddiqui, M.R.H.; Tahir, M.N. Pulicaria glutinosa Extract: A Toolbox to Synthesize Highly Reduced Graphene Oxide-Silver Nanocomposites. Int. J. Mol. Sci. 2015, 16, 1131-1142.
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