基于光声光谱的汽车尾气PM0.1光吸收系数研究

doi:10.3969/j.issn.1673-6141.2025.05.004

大气与环境光学学报 ›› 2025, Vol. 20 ›› Issue (5): 598-610.doi: 10.3969/j.issn.1673-6141.2025.05.004

基于光声光谱的汽车尾气PM0.1光吸收系数研究

陈加雪 1,2,3, 唐敏 1,2,3, 尹亚婕 1,2,3, 牛明生 1,2,3*

1 山东省激光偏振与信息技术重点实验室, 山东曲阜 273165; 2 曲阜师范大学物理工程学院, 山东曲阜 273165; 3 曲阜师范大学激光研究所, 山东曲阜 273165

收稿日期:2023-03-21 修回日期:2023-04-14 出版日期:2025-09-28 发布日期:2025-09-24
通讯作者: E-mail: qsdmsniu@qfnu.edu.cn E-mail:qsdmsniu@qfnu.edu.cn
作者简介:陈加雪 (1998- ), 女, 山东德州人, 硕士研究生, 主要从事光声光谱和气溶胶探测方面的研究。E-mail: 2836349256@qq.com
基金资助:
山东省自然科学基金项目 (ZR2018MD015, 2018), 山东省重点研发计划项目 (2017GSF17125), 大学生创新实验项目 (XJ20200071)

PM0.1 of automobile exhaust optical absorption coefficient measurement based on photoacoustic spectroscopy

CHEN Jiaxue 1,2,3, TANG Min 1,2,3, YIN Yajie 1,2,3, NIU Mingsheng 1,2,3*

1 Key Laboratory of Laser Polarization and Information Technology of Shandong Province, Qufu 273165, China; 2 School of Physical and Physical Engineering, Qufu Normal University, Qufu 273165, China; 3 Laser Research Institute, Qufu Normal University, Qufu 273165, China

Received:2023-03-21 Revised:2023-04-14 Online:2025-09-28 Published:2025-09-24

摘要/Abstract

摘要： 汽车尾气直接排放的超细颗粒物 (PM0.1) 及其在大气中的老化过程，对人类健康和环境气候具有显著影响。本研究采用光声光谱技术，利用中心波长为1064 nm的激光器系统测量并分析了18 辆汽车在空载怠速状态下尾气中的PM0.1直接吸收系数及经光照4 h 和14 h 光照老化后的光吸收系数。结果表明，实施国Ⅴ标准后，汽车尾气中一次 PM0.1的光学吸收系数明显降低，其数值与发动机排量、汽车使用年限和重量呈正相关； PM0.1的光吸收系数光照老化过程中呈现先增大后减小的变化特点。本研究为深入理解汽车尾气中PM0.1的光吸收特性及其环境行为提供了实验依据和数据支撑。

关键词: 光声光谱技术, 汽车尾气, 超细颗粒, 光吸收系数

Abstract: Ultra-fine particulate matter (PM0.1) emission from automobile exhaust and its aging process in the atmosphere have a significant impact on human health and environmental climate. In this work, the optical absorption coefficients of PM0.1 in the exhaust of 18 automobile under no-load idle state and after 4 hours and 14 hours of light aging were researched with photoacoustic spectroscopy at 1064 nm. The results showed that the optical absorption coefficient of PM0.1 in vehicle exhaust decreases obviously after the implementation of National V standard in China, which is positively correlated with engine displacement, service life and weight and the optical absorption coefficient of PM0.1 increased first and then decreased during light aging. This work provides an experimental basis and data support for further understanding of the light absorption characteristics and environmental behavior of PM0.1 in automobile exhaust.

Key words: photoacoustic spectroscopy, automobile exhaust, ultrafine particles, optical absorption coefficient

中图分类号:

O433

陈加雪, 唐敏, 尹亚婕, 牛明生, . 基于光声光谱的汽车尾气PM0.1光吸收系数研究[J]. 大气与环境光学学报, 2025, 20(5): 598-610.

CHEN Jiaxue , TANG Min , YIN Yajie , NIU Mingsheng , . PM0.1 of automobile exhaust optical absorption coefficient measurement based on photoacoustic spectroscopy[J]. Journal of Atmospheric and Environmental Optics, 2025, 20(5): 598-610.

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基于光声光谱的汽车尾气PM0.1光吸收系数研究

PM0.1 of automobile exhaust optical absorption coefficient measurement based on photoacoustic spectroscopy

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