Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water
Water pollution with microplastics has become a significant concern. Conventional treatment methods have proven ineffective, and alternatives are being explored. Herein, we assess the degradation efficiency of polystyrene (PS) by measuring its nanosecond discharge in air in contact with water. Its d...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Plasma |
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| Online Access: | https://www.mdpi.com/2571-6182/7/1/4 |
| _version_ | 1797239614865408000 |
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| author | Aurélie Zamo Catherine Rond Ahmad Hamdan |
| author_facet | Aurélie Zamo Catherine Rond Ahmad Hamdan |
| author_sort | Aurélie Zamo |
| collection | DOAJ |
| description | Water pollution with microplastics has become a significant concern. Conventional treatment methods have proven ineffective, and alternatives are being explored. Herein, we assess the degradation efficiency of polystyrene (PS) by measuring its nanosecond discharge in air in contact with water. Its discharge is characterized during processing, and a transition from streamer-like to spark-like discharge occurs due to the increased electrical conductivity of water. Experiments are conducted at different frequencies, and the highest degradation is achieved at 10 kHz; an 83% polystyrene weight loss is recorded after 5 min of processing. The optical spectra of the discharge show no evidence of C-species, and an FTIR analysis of the processed polystyrene reveals no structural modifications. An NMR analysis shows the presence of ethylbenzene in water. Finally, a mechanism of PS degradation is proposed. |
| first_indexed | 2024-04-24T17:54:21Z |
| format | Article |
| id | doaj.art-fd2ebbad087743b7a2858eef1a180e11 |
| institution | Directory Open Access Journal |
| issn | 2571-6182 |
| language | English |
| last_indexed | 2024-04-24T17:54:21Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plasma |
| spelling | doaj.art-fd2ebbad087743b7a2858eef1a180e112024-03-27T14:01:03ZengMDPI AGPlasma2571-61822024-01-0171496310.3390/plasma7010004Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/WaterAurélie Zamo0Catherine Rond1Ahmad Hamdan2Groupe de Physique des Plasmas, Département de Physique, Université de Montréal, Montréal, QC H2V 0B3, CanadaLaboratoire des Sciences des Procédés et des Matériaux (LSPM), CNRS UPR3407, Université Sorbonne Paris Nord, 93430 Villetaneuse, FranceGroupe de Physique des Plasmas, Département de Physique, Université de Montréal, Montréal, QC H2V 0B3, CanadaWater pollution with microplastics has become a significant concern. Conventional treatment methods have proven ineffective, and alternatives are being explored. Herein, we assess the degradation efficiency of polystyrene (PS) by measuring its nanosecond discharge in air in contact with water. Its discharge is characterized during processing, and a transition from streamer-like to spark-like discharge occurs due to the increased electrical conductivity of water. Experiments are conducted at different frequencies, and the highest degradation is achieved at 10 kHz; an 83% polystyrene weight loss is recorded after 5 min of processing. The optical spectra of the discharge show no evidence of C-species, and an FTIR analysis of the processed polystyrene reveals no structural modifications. An NMR analysis shows the presence of ethylbenzene in water. Finally, a mechanism of PS degradation is proposed.https://www.mdpi.com/2571-6182/7/1/4nanosecond dischargeplasma in contact with waterdegradation of polystyrene |
| spellingShingle | Aurélie Zamo Catherine Rond Ahmad Hamdan Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water Plasma nanosecond discharge plasma in contact with water degradation of polystyrene |
| title | Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water |
| title_full | Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water |
| title_fullStr | Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water |
| title_full_unstemmed | Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water |
| title_short | Polystyrene (PS) Degradation Induced by Nanosecond Electric Discharge in Air in Contact with PS/Water |
| title_sort | polystyrene ps degradation induced by nanosecond electric discharge in air in contact with ps water |
| topic | nanosecond discharge plasma in contact with water degradation of polystyrene |
| url | https://www.mdpi.com/2571-6182/7/1/4 |
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