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The Green Synthesis and Evaluation o...

Gebear-Eigzabher, Bellsabel.

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The Green Synthesis and Evaluation of Silver Nanoparticles and Zinc Oxide Nanoparticles.

Record Type:	Electronic resources : Monograph/item
Title/Author:	The Green Synthesis and Evaluation of Silver Nanoparticles and Zinc Oxide Nanoparticles./
Author:	Gebear-Eigzabher, Bellsabel.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	102 p.
Notes:	Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.
Contained By:	Dissertation Abstracts International79-04B(E).
Subject:	Chemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10641876
ISBN:	9780355549034

The Green Synthesis and Evaluation of Silver Nanoparticles and Zinc Oxide Nanoparticles.
Gebear-Eigzabher, Bellsabel.

The Green Synthesis and Evaluation of Silver Nanoparticles and Zinc Oxide Nanoparticles. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 102 p.

Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.

Thesis (Ph.D.)--Delaware State University, 2017.

Nanoparticle (NP) research has received exceptional attention as the field of study that contributes to transforming the world of materials science. When implementing NPs in consumer and industrial products, their unique properties improve technologies to the extent of significant game-changing breakthroughs. Conversely, the increased production of NPs, their use, their disposal or inadvertent release in the environment drove the need for processes and policies that ensures consumer and environmental safety. Mitigation of any harmful effects that NPs could potentially have combines methods of safe preparation, safe handling and safe disposal as well as containment of any inadvertent release. Our focus is in safe preparation of nanomaterials and we report green and energy efficient synthesis methods for metal NPs and metal oxide NPs of two popular materials: silver (Ag) and zinc oxide (ZnO).

ISBN: 9780355549034Subjects--Topical Terms:

516420
Chemistry.

The Green Synthesis and Evaluation of Silver Nanoparticles and Zinc Oxide Nanoparticles.
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245 1 4 $a The Green Synthesis and Evaluation of Silver Nanoparticles and Zinc Oxide Nanoparticles.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 102 p.
500 $a Source: Dissertation Abstracts International, Volume: 79-04(E), Section: B.
500 $a Adviser: Daniela Radu.
502 $a Thesis (Ph.D.)--Delaware State University, 2017.
520 $a Nanoparticle (NP) research has received exceptional attention as the field of study that contributes to transforming the world of materials science. When implementing NPs in consumer and industrial products, their unique properties improve technologies to the extent of significant game-changing breakthroughs. Conversely, the increased production of NPs, their use, their disposal or inadvertent release in the environment drove the need for processes and policies that ensures consumer and environmental safety. Mitigation of any harmful effects that NPs could potentially have combines methods of safe preparation, safe handling and safe disposal as well as containment of any inadvertent release. Our focus is in safe preparation of nanomaterials and we report green and energy efficient synthesis methods for metal NPs and metal oxide NPs of two popular materials: silver (Ag) and zinc oxide (ZnO).
520 $a The thesis explained: 1) The impact of NPs in nowadays' world; 2) Synthesis methods that were designed to include environmentally-friendly staring materials and energy-saving fabrication processes, with emphasis on maintaining NPs final size and morphology when compared with existing methods; and 3) Nanoparticles characterization and data collection which allowed us to determine and/or validate their properties. Nanoparticles were studied using transmission electron microscope (TEM), X-Ray powder diffraction (XRD), low-voltage (5 keV) transmission electron microscopy (LV EM 5), Fourier-Transform Infrared Spectroscopy (FT-IR), and Ultraviolet-Visible (UV-Vis) spectroscopy.
520 $a We developed an aqueous-based preparation of zinc oxide nanoparticles (ZnO NPs) using microwave-assisted chemistry to render a well-controlled particle size distribution within each set of reaction conditions in the range of 15 nm to 75 nm.
520 $a We developed a scalable silver nanoparticles synthesis by chemical reduction methods. The NPs could be used in consumer products. The measurement tools for consumer products were also used on in-house synthesized Ag NPs.
520 $a Commercially available silver nanoparticles have been compared with the in-house synthesized ones and characterized by Photothermal Lens (PTL) Spectroscopy. In respect to particle size and morphology, the Ag NPs synthesized by chemical reduction methods are similar to Ag nanoparticle solution available in the market. However, the synthesized nanoparticles are high in concentration and do not show signs of aggregation or agglomeration. It was concluded that our Ag NPs are superior to the commercially available ones by exhibiting large concentrations in ultra-stable dispersions.
590 $a School code: 1824.
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