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Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan

The Electrospray technology was employed for continuous synthesis of polymeric stabilizer protected gold nanoparticles (GNPs) in aqueous region via chemical reduction method. GNPs in the range of 2-30 nm were chemically synthesized using HAuC14 as precursor solution, L-ascorbic acid as reducing agen...

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Main Author: Mohamed Hasaan, Hussain
Format: Thesis
Language:English
Published: 2019
Online Access:https://ir.uitm.edu.my/id/eprint/95153/1/95153.pdf
https://ir.uitm.edu.my/id/eprint/95153/
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spelling my.uitm.ir.951532024-09-09T07:22:46Z https://ir.uitm.edu.my/id/eprint/95153/ Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan Mohamed Hasaan, Hussain The Electrospray technology was employed for continuous synthesis of polymeric stabilizer protected gold nanoparticles (GNPs) in aqueous region via chemical reduction method. GNPs in the range of 2-30 nm were chemically synthesized using HAuC14 as precursor solution, L-ascorbic acid as reducing agent and polyvinyl pyrrolidone (PVP) as stabilizer. Physical properties of colloidal GNPs such as particle size, morphology, and polydispersity index were optimized by manipulating electrospray precursor stream and droplets governing factors such as flow rate, precursor concentration, and working distance. Correlation between particle size, morphology, and particle size distribution of GNPs in final product and electrospray parameters were analysed. Quantitative and qualitative measurements of final GNPs were characterized using ICP - AES, DLS, UV-Vis, TEM, and FTIR techniques. Results reveal that the mean diameter of GNPs decreased from ~ 9 to 4 nm with increasing electrospray flowrate, electrospray droplet size current passing through the electrospray jet and decreasing working distance. Besides, it was found out that spherical and monodispersed GNPs with 0.04 PDI value in relatively high flowrate (2ml/h) and moderated concentration of precursor solution (2mM) of this study. In addition, favourable chemical environment conditions such as pH of reaction bath, molar ratio of reactants and presence of stabilizer (PVP) for synthesizing engineered GNPs in electrospray incorporated system was investigated. 2019 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/95153/1/95153.pdf Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan. (2019) Masters thesis, thesis, Universiti Teknologi MARA (UiTM). <http://terminalib.uitm.edu.my/95153.pdf>
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
description The Electrospray technology was employed for continuous synthesis of polymeric stabilizer protected gold nanoparticles (GNPs) in aqueous region via chemical reduction method. GNPs in the range of 2-30 nm were chemically synthesized using HAuC14 as precursor solution, L-ascorbic acid as reducing agent and polyvinyl pyrrolidone (PVP) as stabilizer. Physical properties of colloidal GNPs such as particle size, morphology, and polydispersity index were optimized by manipulating electrospray precursor stream and droplets governing factors such as flow rate, precursor concentration, and working distance. Correlation between particle size, morphology, and particle size distribution of GNPs in final product and electrospray parameters were analysed. Quantitative and qualitative measurements of final GNPs were characterized using ICP - AES, DLS, UV-Vis, TEM, and FTIR techniques. Results reveal that the mean diameter of GNPs decreased from ~ 9 to 4 nm with increasing electrospray flowrate, electrospray droplet size current passing through the electrospray jet and decreasing working distance. Besides, it was found out that spherical and monodispersed GNPs with 0.04 PDI value in relatively high flowrate (2ml/h) and moderated concentration of precursor solution (2mM) of this study. In addition, favourable chemical environment conditions such as pH of reaction bath, molar ratio of reactants and presence of stabilizer (PVP) for synthesizing engineered GNPs in electrospray incorporated system was investigated.
format Thesis
author Mohamed Hasaan, Hussain
spellingShingle Mohamed Hasaan, Hussain
Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan
author_facet Mohamed Hasaan, Hussain
author_sort Mohamed Hasaan, Hussain
title Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan
title_short Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan
title_full Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan
title_fullStr Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan
title_full_unstemmed Colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / Hussain Mohamed Hasaan
title_sort colloidal gold nanoparticle synthesized by electrospray assisted chemical reduction method / hussain mohamed hasaan
publishDate 2019
url https://ir.uitm.edu.my/id/eprint/95153/1/95153.pdf
https://ir.uitm.edu.my/id/eprint/95153/
_version_ 1811596712137981952
score 13.211869

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