...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Ozone-Initiated Particle Formation, Particle Aging, and Precursors in a Laser Printer
【24h】

Ozone-Initiated Particle Formation, Particle Aging, and Precursors in a Laser Printer

机译：激光打印机中臭氧引发的颗粒形成，颗粒老化和前体

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An increasing number of researchers have hypothesized that ozone may be involved in the particle formation processes that occur during printing, however no studies have investigated this further. In the current study, this hypothesis was tested in a chamber study by adding supplemental ozone to the chamber after a print job without measurable ozone emissions. Subsequent particle number concentration and size distribution measurements showed that new particles were formed minutes after the addition of ozone. The results demonstrated that ozone did react with printer-generated volatile organic compounds (VOCs) to form secondary organic aerosols (SOAs). The hypothesis was further confirmed by the observation of correlations among VOCs, ozone, and particles concentrations during a print job with measurable ozone emissions. The potential particle precursors were identified by a number of furnace tests, which suggested that squalene and styrene were the most likely SOA precursors with respect to ozone. Overall, this study significantly improved scientific understanding of the formation mechanisms of printer-generated particles, and highlighted the possible SOA formation potential of unsaturated nonterpene organic compounds by ozone-initiated reactions in the indoor environment.
机译：越来越多的研究人员认为，臭氧可能与印刷过程中发生的颗粒形成过程有关，但是尚无研究对此进行进一步研究。在当前的研究中，在室内研究中通过在没有可测量的臭氧排放的情况下在印刷后向室内添加补充臭氧来检验该假设。随后的颗粒数浓度和尺寸分布测量表明，添加臭氧后数分钟便形成了新颗粒。结果表明，臭氧确实会与打印机产生的挥发性有机化合物（VOC）反应形成二次有机气溶胶（SOA）。通过观察印刷作业期间可测量的臭氧排放量中VOC，臭氧和颗粒浓度之间的相关性进一步证实了这一假设。潜在的颗粒前驱物已通过许多熔炉测试确定，这表明相对于臭氧，角鲨烯和苯乙烯是最可能的SOA前驱物。总体而言，这项研究显着提高了对打印机产生的颗粒形成机理的科学认识，并强调了在室内环境中通过臭氧引发的反应，不饱和非萜烯有机化合物可能形成SOA的可能性。

著录项

  • 来源
    《Environmental Science & Technology》 |2012年第2期|p.704-712|共9页
  • 作者

    Hao Wang; Congrong He; Lidia Morawska; Peter McGarry; Graham Johnson;

  • 作者单位

    International Laboratory for Air Quality and Health, Institute of Health and Biomedkal Innovation, Queensland University of Technology, GPO Box 2434, Brisbane QLD, 4001, Australia;

    International Laboratory for Air Quality and Health, Institute of Health and Biomedkal Innovation, Queensland University of Technology, GPO Box 2434, Brisbane QLD, 4001, Australia;

    International Laboratory for Air Quality and Health, Institute of Health and Biomedkal Innovation, Queensland University of Technology, GPO Box 2434, Brisbane QLD, 4001, Australia;

    International Laboratory for Air Quality and Health, Institute of Health and Biomedkal Innovation, Queensland University of Technology, GPO Box 2434, Brisbane QLD, 4001, Australia;

    International Laboratory for Air Quality and Health, Institute of Health and Biomedkal Innovation, Queensland University of Technology, GPO Box 2434, Brisbane QLD, 4001, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号