Rajiv, Periakaruppan and Senthil Kumar, J (2023) Production of Biogenic Silica Nanoparticles by Green Chemistry Approach and Assessment of their Physicochemical Properties and Efects on the Germination of Sorghum bicolor. Silicon.

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Abstract

The synthesis of phyto-extract-assisted nanomaterials is very popularity as the process is simple and inexpensive. Euphorbia thymifolia L. belongs to family Euphorbiaceae and it is well-known herb species. The aim of the present research is a
green synthesis of silica nanomaterials using the aqueous extract of E. thymifolia. The synthesized silica nanoparticles were
characterized by Ultraviolet-visible (UV-Vis) spectrophotometer, Fourier Transform Infrared Spectroscopy (FTIR), X-Ray
difraction analysis (XRD), Scanning Electron Microscope (SEM) with Energy Dispersive X-ray Analysis (EDAX), Dynamic
Light Scattering (DLS) and Thermogravimetric analysis (TGA). These results confrmed the successful formation of nanoparticles, which are spherical and amorphous in nature. EDAX analysis determined the purity of the silica nanoparticles, which
are composed of Si and O elements with no other impurities. XRD spectroscopy illustrates that characteristic difraction
peaks for silica nanoparticles were observed at 2ϴ range 20° corresponding to 101 planes. The average size of synthesized
silica nanoparticles is 17 nm. The surface charge and stability of silica nanomaterials were analysed using dynamic light
scattering (DLS), which revealed that the synthesized nanomaterials have a negative charge (-2.00 mV). The results obtained
from this investigation confrm that the aqueous extract of E. thymifolia can play a vital role in the capping and stabilization
of Tetra Ethyl Ortho Silicate to silica nanoparticles. In addition, the efect of bio-synthesized silica nanoparticles on the
germination of Sorghum bicolor was determined, and it was concluded that silica nanoparticles improved the percentage of
seed germination and that it would be useful for agricultural application.

Item Type: Article
Uncontrolled Keywords: Biologcial method · E. thymifolia · Silica nanoparticles · Physicochemical properties · Seed germination
Divisions: PSG College of Arts and Science > Department of Biotechnology
Depositing User: Mr Team Mosys
Date Deposited: 04 Jul 2023 05:39
Last Modified: 04 Jul 2023 07:03
URI: http://ir.psgcas.ac.in/id/eprint/1951

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