干旱区生态环境知识资源中心(Arid): Gaseous and heterogeneous reactions of low-molecular-weight (LMW) unsaturated ketones with O-3: Mechanisms, kinetics, and effects of mineral dust in tropospheric chemical processes

Arid

DOI	10.1016/j.cej.2020.125083
	Gaseous and heterogeneous reactions of low-molecular-weight (LMW) unsaturated ketones with O-3: Mechanisms, kinetics, and effects of mineral dust in tropospheric chemical processes
	Wang, Xueyu; Sun, Jianfei; Han, Dandan; Bao, Lei; Mei, Qiong; Wei, Bo; An, Zexiu; He, Maoxia; Yuan, Shiling; Xie, Ju; Zhan, Jinhua; Zhang, Qingzhu; Wang, Wenxing
通讯作者	He, MX
来源期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
EISSN	1873-3212
出版年	2020
卷号	395
英文摘要	Mineral dust has a significant effect on the atmospheric heterogeneous chemistry and environmental risk prediction of VOCs. In this work, a comprehensive theoretical study for the gaseous and heterogeneous reactions process of four Low-Molecular-Weight (LMW) unsaturated ketones with O-3 has been provided for the first time. SiO2 is the main component of mineral dust, which shows better adsorption performance of these ketones and represents a good sinking of atmospheric LMW oxygenated VOCs. The gaseous reactions of LMW unsaturated ketones with O-3 are closely related to the formation of some strong oxidants and air pollution behaviors. The heterogeneous reactions of these ketones onto the surface of available mineral aerosols may compete with the corresponding gas phase reactions, especially in arid and semi-arid areas with frequent dust storms. Organic hydroperoxides and LMW carbonyl compounds generated in the title reactions may change the properties of aerosols, which have essential impacts on tropospheric chemistry and climate. The presence of SiO2 could accelerate the reactions of LMW unsaturated ketones with O-3 without changing their degradation mechanism. It also should be emphasized that the promoting effect of SiO2 clusters to CH2OO + H2O has been found in our computation. This may explain the high product yields of HMHP and H2O2 detected on SiO2 particles in the experiment. The effect of mineral particles on the O-3-initiated reactions has been probed at the molecular level and the pollution mechanism of VOCs has been better understood.
英文关键词	Gas-phase reactions Heterogeneous chemistry Criegee intermediates (CIs) Adsorption performance Theoretical calculation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000537389400002
WOS关键词	SECONDARY ORGANIC AEROSOL ; GAS-PHASE REACTIONS ; METHYL VINYL KETONE ; HYDROXYMETHYL HYDROPEROXIDE ; ATMOSPHERIC CHEMISTRY ; OZONOLYSIS ; OXIDATION ; ISOPRENE ; DEGRADATION ; RADICALS
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324597
作者单位	[Wang, Xueyu; Yuan, Shiling; Zhan, Jinhua] Shandong Univ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China; [Sun, Jianfei; Bao, Lei; Mei, Qiong; Wei, Bo; An, Zexiu; He, Maoxia; Zhang, Qingzhu; Wang, Wenxing] Shandong Univ, Environm Res Inst, Qingdao 266237, Peoples R China; [Han, Dandan] Heze Univ, Sch Chem & Chem Engn, Heze 274015, Peoples R China; [Xie, Ju] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xueyu,Sun, Jianfei,Han, Dandan,et al. Gaseous and heterogeneous reactions of low-molecular-weight (LMW) unsaturated ketones with O-3: Mechanisms, kinetics, and effects of mineral dust in tropospheric chemical processes[J],2020,395.
APA	Wang, Xueyu.,Sun, Jianfei.,Han, Dandan.,Bao, Lei.,Mei, Qiong.,...&Wang, Wenxing.(2020).Gaseous and heterogeneous reactions of low-molecular-weight (LMW) unsaturated ketones with O-3: Mechanisms, kinetics, and effects of mineral dust in tropospheric chemical processes.CHEMICAL ENGINEERING JOURNAL,395.
MLA	Wang, Xueyu,et al."Gaseous and heterogeneous reactions of low-molecular-weight (LMW) unsaturated ketones with O-3: Mechanisms, kinetics, and effects of mineral dust in tropospheric chemical processes".CHEMICAL ENGINEERING JOURNAL 395(2020).