Time-dependent effect in green synthesis of silver nanoparticles

Majid Darroudi^1,2, Mansor Bin Ahmad³, Reza Zamiri⁴, AK Zak⁵, Abdul Halim Abdullah^1,3, Nor Azowa Ibrahim^3
1Advanced Materials and Nanotechnology Laboratory, Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, Selangor, Malaysia; ²Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; ³Department of Chemistry, ⁴Department of Physics, Faculty of Science, Universiti Putra Malaysia, Selangor, Malaysia; ⁵Low Dimensional Materials Research Center, Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia

Abstract: The application of “green” chemistry rules to nanoscience and nanotechnology is very important in the preparation of various nanomaterials. In this work, we successfully developed an eco-friendly chemistry method for preparing silver nanoparticles (Ag-NPs) in natural polymeric media. The colloidal Ag-NPs were synthesized in an aqueous solution using silver nitrate, gelatin, and glucose as a silver precursor, stabilizer, and reducing agent, respectively. The properties of synthesized colloidal Ag-NPs were studied at different reaction times. The ultraviolet-visible (UV-vis) spectra were in excellent agreement with the obtained nanostructure studies performed by transmission electron microscopy (TEM) and their size distributions. The prepared samples were also characterized by X-ray diffraction (XRD) and atomic force microscopy (AFM). The use of eco-friendly reagents, such as gelatin and glucose, provides green and economic attributes to this work.

Keywords: silver nanoparticles, gelatin, green chemistry, time-dependent effect, ultraviolet-visible spectra