Cargando…
Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet
In this study, we developed a simple-to-use approach based on an atmospheric pressure plasma jet to synthesize aqueous Au nanoparticles (AuNP). Special attention was paid to the different reaction dynamics and AuNP properties under AC and pulse-power-driven plasma jets (A-Jet and P-Jet, respectively...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6835781/ https://www.ncbi.nlm.nih.gov/pubmed/31635404 http://dx.doi.org/10.3390/nano9101488 |
_version_ | 1783466753904345088 |
---|---|
author | Xie, Pengcheng Qi, Yi Wang, Ruixue Wu, Jina Li, Xiaosen |
author_facet | Xie, Pengcheng Qi, Yi Wang, Ruixue Wu, Jina Li, Xiaosen |
author_sort | Xie, Pengcheng |
collection | PubMed |
description | In this study, we developed a simple-to-use approach based on an atmospheric pressure plasma jet to synthesize aqueous Au nanoparticles (AuNP). Special attention was paid to the different reaction dynamics and AuNP properties under AC and pulse-power-driven plasma jets (A-Jet and P-Jet, respectively). The morphology of the AuNP, optical emissions, and chemical reactions were analyzed. Further, a copper mesh was placed above the reaction cell to evaluate the role of electrons and neutral species reduction. A visible color change was observed after the A-Jet treatment for 30 s, while it took 3 min for the P-Jet. The A-Jet treatment presented a much higher AuNP growth rate and a smaller AuNP diameter compared with the P-Jet treatment. Further analysis revealed an increase in chemical concentrations (Cl(−) and H(2)O(2)) and liquid conductivity after plasma treatment, with a higher increased amplitude for the A-Jet case. Moreover, the electrons alone had little effect on AuNP generation, while neutral species showed a clear Au(+) reduction effect, and a unique coupling effect between both reactions was observed. The different reaction dynamics between the A-Jet and P-Jet were attributed to their different local heating effects and different discharge power during the reaction. |
format | Online Article Text |
id | pubmed-6835781 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68357812019-11-25 Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet Xie, Pengcheng Qi, Yi Wang, Ruixue Wu, Jina Li, Xiaosen Nanomaterials (Basel) Article In this study, we developed a simple-to-use approach based on an atmospheric pressure plasma jet to synthesize aqueous Au nanoparticles (AuNP). Special attention was paid to the different reaction dynamics and AuNP properties under AC and pulse-power-driven plasma jets (A-Jet and P-Jet, respectively). The morphology of the AuNP, optical emissions, and chemical reactions were analyzed. Further, a copper mesh was placed above the reaction cell to evaluate the role of electrons and neutral species reduction. A visible color change was observed after the A-Jet treatment for 30 s, while it took 3 min for the P-Jet. The A-Jet treatment presented a much higher AuNP growth rate and a smaller AuNP diameter compared with the P-Jet treatment. Further analysis revealed an increase in chemical concentrations (Cl(−) and H(2)O(2)) and liquid conductivity after plasma treatment, with a higher increased amplitude for the A-Jet case. Moreover, the electrons alone had little effect on AuNP generation, while neutral species showed a clear Au(+) reduction effect, and a unique coupling effect between both reactions was observed. The different reaction dynamics between the A-Jet and P-Jet were attributed to their different local heating effects and different discharge power during the reaction. MDPI 2019-10-18 /pmc/articles/PMC6835781/ /pubmed/31635404 http://dx.doi.org/10.3390/nano9101488 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Xie, Pengcheng Qi, Yi Wang, Ruixue Wu, Jina Li, Xiaosen Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet |
title | Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet |
title_full | Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet |
title_fullStr | Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet |
title_full_unstemmed | Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet |
title_short | Aqueous Gold Nanoparticles Generated by AC and Pulse-Power-Driven Plasma Jet |
title_sort | aqueous gold nanoparticles generated by ac and pulse-power-driven plasma jet |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6835781/ https://www.ncbi.nlm.nih.gov/pubmed/31635404 http://dx.doi.org/10.3390/nano9101488 |
work_keys_str_mv | AT xiepengcheng aqueousgoldnanoparticlesgeneratedbyacandpulsepowerdrivenplasmajet AT qiyi aqueousgoldnanoparticlesgeneratedbyacandpulsepowerdrivenplasmajet AT wangruixue aqueousgoldnanoparticlesgeneratedbyacandpulsepowerdrivenplasmajet AT wujina aqueousgoldnanoparticlesgeneratedbyacandpulsepowerdrivenplasmajet AT lixiaosen aqueousgoldnanoparticlesgeneratedbyacandpulsepowerdrivenplasmajet |