Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis

The application of high-voltage discharge plasma for water pollutant decomposition and the synthesis of nanoparticles under a high-pressure argon gas environment (~4 MPa) was demonstrated. The experiments were carried out in a batch-type system at room temperature with a pulsed DC power supply (15.4...

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Main Authors: Wahyu Diono, Siti Machmudah, Hideki Kanda, Yaping Zhao, Motonobu Goto
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Plasma
Subjects:
Online Access:https://www.mdpi.com/2571-6182/4/2/21
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author Wahyu Diono
Siti Machmudah
Hideki Kanda
Yaping Zhao
Motonobu Goto
author_facet Wahyu Diono
Siti Machmudah
Hideki Kanda
Yaping Zhao
Motonobu Goto
author_sort Wahyu Diono
collection DOAJ
description The application of high-voltage discharge plasma for water pollutant decomposition and the synthesis of nanoparticles under a high-pressure argon gas environment (~4 MPa) was demonstrated. The experiments were carried out in a batch-type system at room temperature with a pulsed DC power supply (15.4 to 18.6 kV) as a discharge plasma source. The results showed that the electrode materials, the pulsed repetition rates, the applied number of pulses, and the applied voltages had a significant effect on the degradation reactions of organic compounds. Furthermore, carbon solid materials from glycine decomposition were generated during the high-voltage discharge plasma treatment under high-pressure conditions, while Raman spectra and the HRTEM images indicated that titanium dioxide with a brookite structure and titanium carbide nanoparticles were also formed under these conditions. It was concluded that this process is applicable in practice and may lead to advanced organic compound decomposition and metal-based nanoparticle synthesis technologies.
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spelling doaj.art-63c9f68b3f3c467e9e4a8c4a53d14af72023-11-21T22:45:27ZengMDPI AGPlasma2571-61822021-06-014230933110.3390/plasma4020021Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle SynthesisWahyu Diono0Siti Machmudah1Hideki Kanda2Yaping Zhao3Motonobu Goto4Department of Materials Process Engineering, Nagoya University, Nagoya 464-8603, JapanDepartment of Chemical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, IndonesiaDepartment of Materials Process Engineering, Nagoya University, Nagoya 464-8603, JapanSchool of Chemistry & Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaDepartment of Materials Process Engineering, Nagoya University, Nagoya 464-8603, JapanThe application of high-voltage discharge plasma for water pollutant decomposition and the synthesis of nanoparticles under a high-pressure argon gas environment (~4 MPa) was demonstrated. The experiments were carried out in a batch-type system at room temperature with a pulsed DC power supply (15.4 to 18.6 kV) as a discharge plasma source. The results showed that the electrode materials, the pulsed repetition rates, the applied number of pulses, and the applied voltages had a significant effect on the degradation reactions of organic compounds. Furthermore, carbon solid materials from glycine decomposition were generated during the high-voltage discharge plasma treatment under high-pressure conditions, while Raman spectra and the HRTEM images indicated that titanium dioxide with a brookite structure and titanium carbide nanoparticles were also formed under these conditions. It was concluded that this process is applicable in practice and may lead to advanced organic compound decomposition and metal-based nanoparticle synthesis technologies.https://www.mdpi.com/2571-6182/4/2/21discharge plasmananoparticletitanium carbidecarbon materialwater pollutant
spellingShingle Wahyu Diono
Siti Machmudah
Hideki Kanda
Yaping Zhao
Motonobu Goto
Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis
Plasma
discharge plasma
nanoparticle
titanium carbide
carbon material
water pollutant
title Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis
title_full Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis
title_fullStr Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis
title_full_unstemmed Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis
title_short Pulsed Discharge Plasma in High-Pressure Environment for Water Pollutant Degradation and Nanoparticle Synthesis
title_sort pulsed discharge plasma in high pressure environment for water pollutant degradation and nanoparticle synthesis
topic discharge plasma
nanoparticle
titanium carbide
carbon material
water pollutant
url https://www.mdpi.com/2571-6182/4/2/21
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AT sitimachmudah pulseddischargeplasmainhighpressureenvironmentforwaterpollutantdegradationandnanoparticlesynthesis
AT hidekikanda pulseddischargeplasmainhighpressureenvironmentforwaterpollutantdegradationandnanoparticlesynthesis
AT yapingzhao pulseddischargeplasmainhighpressureenvironmentforwaterpollutantdegradationandnanoparticlesynthesis
AT motonobugoto pulseddischargeplasmainhighpressureenvironmentforwaterpollutantdegradationandnanoparticlesynthesis