Time‐sharing synergy of NOx mode and O3 mode air discharges for efficient and pollution‐free disinfection

IF 2.9 3区物理与天体物理 Q2 PHYSICS, APPLIED

Plasma Processes and Polymers Pub Date : 2024-07-05 DOI:10.1002/ppap.202400083

Zifeng Wang, Luge Wang, Pengfei Zhang, Dingxin Liu, Yue Feng, Qiuyi Yue, Yujie He, Shenghang Xu, Xiangyu Wang, Dandan Pei, Jishen Zhang, Li Guo, Mingzhe Rong

{"title":"Time‐sharing synergy of NOx mode and O3 mode air discharges for efficient and pollution‐free disinfection","authors":"Zifeng Wang, Luge Wang, Pengfei Zhang, Dingxin Liu, Yue Feng, Qiuyi Yue, Yujie He, Shenghang Xu, Xiangyu Wang, Dandan Pei, Jishen Zhang, Li Guo, Mingzhe Rong","doi":"10.1002/ppap.202400083","DOIUrl":null,"url":null,"abstract":"As an alternative disinfection technology, air plasma is limited to achieve wider application due to its restricted disinfection level and hazardous by‐products including O3 and NOx. In this work, a time‐sharing synergy strategy is proposed, where NO and NO2 are first generated by a dielectric barrier discharge reactor in NOx mode, and then the discharge is switched into O3 mode by increasing flowrate, thus producing large amounts of high‐valence NOx for efficient disinfection in sealed space. The disinfection effect of time‐sharing synergy is about 2 logs higher than using single O3 or NOx mode with the same discharge power. The concentration of high‐valence NOx is highly correlated with disinfection effect. Finally, all disinfection ingredients are removed after 2‐min gas‐washing and heating.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":"42 1","pages":""},"PeriodicalIF":2.9000,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma Processes and Polymers","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1002/ppap.202400083","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

As an alternative disinfection technology, air plasma is limited to achieve wider application due to its restricted disinfection level and hazardous by‐products including O3 and NOx. In this work, a time‐sharing synergy strategy is proposed, where NO and NO2 are first generated by a dielectric barrier discharge reactor in NOx mode, and then the discharge is switched into O3 mode by increasing flowrate, thus producing large amounts of high‐valence NOx for efficient disinfection in sealed space. The disinfection effect of time‐sharing synergy is about 2 logs higher than using single O3 or NOx mode with the same discharge power. The concentration of high‐valence NOx is highly correlated with disinfection effect. Finally, all disinfection ingredients are removed after 2‐min gas‐washing and heating.

查看原文本刊更多论文

NOx 模式和 O3 模式空气排放的分时协同作用，实现高效无污染消毒

作为一种替代消毒技术，空气等离子体的消毒水平有限，而且会产生包括 O3 和 NOx 在内的有害副产品，因此其应用范围有限。本研究提出了一种分时协同策略，即首先通过介质阻挡放电反应器在 NOx 模式下产生 NO 和 NO2，然后通过增加流速将放电转换为 O3 模式，从而产生大量高价 NOx，用于密封空间的高效消毒。在放电功率相同的情况下，分时协同的消毒效果比单一的 O3 或 NOx 模式高出约 2 个对数。高价氮氧化物的浓度与消毒效果高度相关。最后，经过 2 分钟的气体洗涤和加热，所有消毒成分都被去除。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Plasma Processes and Polymers 物理-高分子科学

CiteScore

6.60

自引率

11.40%

发文量

150

审稿时长

3 months

期刊介绍： Plasma Processes & Polymers focuses on the interdisciplinary field of low temperature plasma science, covering both experimental and theoretical aspects of fundamental and applied research in materials science, physics, chemistry and engineering in the area of plasma sources and plasma-based treatments.