Shamim, Aisha and Mahmood, Tariq and Abid, Monis Bin (2019) Biogenic Synthesis of Zinc Oxide (ZnO) Nanoparticles Using a Fungus (Aspargillus niger) and Their Characterization. International Journal of Chemistry, 11 (2). p. 119. ISSN 1916-9698
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Abstract
Nanoparticles are ultrafine structures with dimensions less than 100 nm. Nanoparticles have diverse applications. There are three important methods of fabrication of nanoparticles namely physical, chemical and biological methods. Physical method is a top down strategy for the fabrication of nanoparticles. It is energy intensive and time consuming. A chemical method is simple, but is expensive and requires expensive chemicals with high purity and also involves hazards of contaminations. Biological synthesis is very simple, cheap and environment friendly, requiring no expensive chemicals, temperature and is time saving. Plants and microorganisms are commonly used in this method. These are available everywhere. In the present work we synthesized Zinc Oxide (ZnO) nanoparticles by biological method using Aspargillus niger and zinc chloride (ZnCl2) as precursors. Biogenic synthesis of metallic nanoparticles by fungi is a safe and economical process because of formation of stable and small sized nanoparticles. Fungal biomass secretes proteins which act as reducing and stabilizing agents. The synthesized nanoparticles were characterized by XRD (X-Ray Diffraction), SEM (Scanning Electron Microscopy), UV-Vis (Ultraviolet, Visible) and EDX (Energy Dispersive X-Ray) techniques. Their size was in nm range and morphology of synthesized ZnO NPs was hexagonal. The ZnO nanoparticles are one of the most versatile materials and are used in cosmetics and in Bioenergy production, as a catalyst and as antibacterial material.
Item Type: | Article |
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Subjects: | Science Global Plos > Chemical Science |
Depositing User: | Unnamed user with email support@science.globalplos.com |
Date Deposited: | 20 Apr 2023 09:10 |
Last Modified: | 03 Feb 2024 04:32 |
URI: | http://ebooks.manu2sent.com/id/eprint/605 |