Pulicaria glutinosa Extract: A Toolbox to Synthesize Highly Reduced Graphene Oxide-Silver Nanocomposites

International Journal of Molecular Sciences

Abdulhadi H. Al-Marri³  Mujeeb Khan³  Merajuddin Khan³  Syed F. Adil³  Abdulrahman Al-Warthan³  Hamad Z. Alkhathlan³  Wolfgang Tremel²  Joselito P. Labis¹  Mohammed Rafiq H. Siddiqui³  Muhammad N. Tahir² 

[1]King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia

[2] E-Mail:

[3]Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Mainz 55122, Germany

[4] E-Mail:

[5]Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

[6] E-Mails:

关键词: graphene;    silver nanoparticles;    plant extract;    nanocomposites;    surface enhance Raman scattering (SERS);   

DOI  :  10.3390/ijms16011131

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.