Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid

Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid

We report the synthesis of air-stable Cu nanoparticles (NPs) using the bottom-up laser reduction in liquid method. Precursor solutions of copper acetlyacetonate in a mixture of methanol and isopropyl alcohol were irradiated with femtosecond laser pulses to produce Cu NPs. The Cu NPs were left at amb...

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Main Authors: Ashish Nag, Laysa Mariela Frias Batista, Katharine Moore Tibbetts
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Nanomaterials
Subjects:
laser synthesis
laser reduction in liquid
copper nanoparticles
para-nitrophenol
Online Access:https://www.mdpi.com/2079-4991/11/3/814
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spelling doaj-e38ee37c14d34f739499a51e3b937d6b2021-03-24T00:00:19ZengMDPI AGNanomaterials2079-49912021-03-011181481410.3390/nano11030814Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in LiquidAshish Nag0Laysa Mariela Frias Batista1Katharine Moore Tibbetts2Department of Chemistry, Virginia Commonwealth University, Richmond, VA 23284, USADepartment of Chemistry, Virginia Commonwealth University, Richmond, VA 23284, USADepartment of Chemistry, Virginia Commonwealth University, Richmond, VA 23284, USAWe report the synthesis of air-stable Cu nanoparticles (NPs) using the bottom-up laser reduction in liquid method. Precursor solutions of copper acetlyacetonate in a mixture of methanol and isopropyl alcohol were irradiated with femtosecond laser pulses to produce Cu NPs. The Cu NPs were left at ambient conditions and analyzed at different ages up to seven days. TEM analysis indicates a broad size distribution of spherical NPs surrounded by a carbon matrix, with the majority of the NPs less than 10 nm and small numbers of large particles up to ∼100 nm in diameter. XRD collected over seven days confirmed the presence of fcc-Cu NPs, with some amorphous Cu<sub>2</sub>O, indicating the stability of the zero-valent Cu phase. Raman, FTIR, and XPS data for oxygen and carbon regions put together indicated the presence of a graphite oxide-like carbon matrix with oxygen functional groups that developed within the first 24 h after synthesis. The Cu NPs were highly active towards the model catalytic reaction of <i>para</i>-nitrophenol reduction in the presence of NaBH<sub>4</sub>.https://www.mdpi.com/2079-4991/11/3/814laser synthesislaser reduction in liquidcopper nanoparticlespara-nitrophenol
collection DOAJ
language English
format Article
sources DOAJ
author Ashish Nag
Laysa Mariela Frias Batista
Katharine Moore Tibbetts
spellingShingle Ashish Nag
Laysa Mariela Frias Batista
Katharine Moore Tibbetts
Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid
Nanomaterials
laser synthesis
laser reduction in liquid
copper nanoparticles
para-nitrophenol
author_facet Ashish Nag
Laysa Mariela Frias Batista
Katharine Moore Tibbetts
author_sort Ashish Nag
title Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid
title_short Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid
title_full Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid
title_fullStr Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid
title_full_unstemmed Synthesis of Air-Stable Cu Nanoparticles Using Laser Reduction in Liquid
title_sort synthesis of air-stable cu nanoparticles using laser reduction in liquid
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2021-03-01
description We report the synthesis of air-stable Cu nanoparticles (NPs) using the bottom-up laser reduction in liquid method. Precursor solutions of copper acetlyacetonate in a mixture of methanol and isopropyl alcohol were irradiated with femtosecond laser pulses to produce Cu NPs. The Cu NPs were left at ambient conditions and analyzed at different ages up to seven days. TEM analysis indicates a broad size distribution of spherical NPs surrounded by a carbon matrix, with the majority of the NPs less than 10 nm and small numbers of large particles up to ∼100 nm in diameter. XRD collected over seven days confirmed the presence of fcc-Cu NPs, with some amorphous Cu<sub>2</sub>O, indicating the stability of the zero-valent Cu phase. Raman, FTIR, and XPS data for oxygen and carbon regions put together indicated the presence of a graphite oxide-like carbon matrix with oxygen functional groups that developed within the first 24 h after synthesis. The Cu NPs were highly active towards the model catalytic reaction of <i>para</i>-nitrophenol reduction in the presence of NaBH<sub>4</sub>.
topic laser synthesis
laser reduction in liquid
copper nanoparticles
para-nitrophenol
url https://www.mdpi.com/2079-4991/11/3/814
work_keys_str_mv AT ashishnag synthesisofairstablecunanoparticlesusinglaserreductioninliquid
AT laysamarielafriasbatista synthesisofairstablecunanoparticlesusinglaserreductioninliquid
AT katharinemooretibbetts synthesisofairstablecunanoparticlesusinglaserreductioninliquid
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