A Laboratory Study to Investigate Inorganic and Organic Sulfate Formation in Multiphase Processes Involving Mineral Dust and Other Metal-Containing Aerosols
研究涉及矿物粉尘和其他含金属气溶胶的多相过程中无机和有机硫酸盐形成的实验室研究
基本信息
- 批准号:1702488
- 负责人:
- 金额:$ 48.24万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-07-01 至 2021-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project focuses on laboratory studies to better understand particulate sulfate formation from sulfur dioxide oxidation in the atmosphere. A major focus of the proposed studies will be to quantify rates and extent of sulfate formation in multiphase pathways involving mineral dust and other metal-containing aerosols as a function of pH, temperature and light.The mechanisms for sulfate formation that will be investigated in a series of laboratory studies that include the: (1) catalytic effects of transition metal ions present in mineral and anthropogenic metal-containing dusts; (2) enhanced sulfate formation in the presence of photoactive semiconductor oxides; and (3) role of organic compounds in mineral mediated sulfate processes. In addition, new methods to investigate the chemistry within individual cloud droplets will be developed, including an optical tweezer with cavity enhanced Raman spectroscopy to investigate sulfur oxidation chemistry within micron sized single droplets containing a dust inclusion. The experiments will be done in the presence and absence of atmospherically important organic species that can react to yield organosulfates. This project will also assess the importance of surface reactivity versus bulk reactivity, important for modeling cloud processes.
该项目侧重于实验室研究,以更好地了解大气中二氧化硫氧化形成的颗粒状硫酸盐。 建议的研究的一个主要重点将是量化硫酸盐形成的速率和程度的多相途径,涉及矿物粉尘和其他含金属的气溶胶作为一个功能的pH值,温度和光。硫酸盐形成的机制,将在一系列的实验室研究,其中包括:(1)过渡金属离子存在于矿物和人为含金属粉尘的催化作用;(2)在光活性半导体氧化物存在下增强的硫酸盐形成;和(3)有机化合物在矿物介导的硫酸盐过程中的作用。此外,将开发新的方法来研究单个云滴内的化学,包括具有腔增强拉曼光谱的光学镊子,以研究包含尘埃夹杂物的微米大小的单个液滴内的硫氧化化学。实验将在存在和不存在可反应产生有机硫酸盐的大气重要有机物种的情况下进行。 该项目还将评估表面反应性与体反应性的重要性,这对模拟云过程很重要。
项目成果
期刊论文数量(6)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Titration of Aerosol pH through Droplet Coalescence
- DOI:10.1021/acs.jpclett.9b00757
- 发表时间:2019-08-01
- 期刊:
- 影响因子:5.7
- 作者:Coddens, Ellen M.;Angle, Kyle J.;Grassian, Vicki H.
- 通讯作者:Grassian, Vicki H.
Influence of Glyoxal on the Catalytic Oxidation of S(IV) in Acidic Aqueous Media
- DOI:10.1021/acsearthspacechem.8b00168
- 发表时间:2019-01-01
- 期刊:
- 影响因子:3.4
- 作者:Coddens, Ellen M.;Huang, Liubin;Grassian, Vicki H.
- 通讯作者:Grassian, Vicki H.
Radical-Initiated Formation of Aromatic Organosulfates and Sulfonates in the Aqueous Phase
- DOI:10.1021/acs.est.0c05644
- 发表时间:2020-10-06
- 期刊:
- 影响因子:11.4
- 作者:Huang, Liubin;Liu, Tongshan;Grassian, Vicki H.
- 通讯作者:Grassian, Vicki H.
Enhanced Rates of Transition-Metal-Ion-Catalyzed Oxidation of S(IV) in Aqueous Aerosols: Insights into Sulfate Aerosol Formation in the Atmosphere
- DOI:10.1021/acs.est.1c01932
- 发表时间:2021-07-19
- 期刊:
- 影响因子:11.4
- 作者:Angle, Kyle J.;Neal, Erin E.;Grassian, Vicki H.
- 通讯作者:Grassian, Vicki H.
Formation of Organosulfur Compounds from Aqueous Phase Reactions of S(IV) with Methacrolein and Methyl Vinyl Ketone in the Presence of Transition Metal Ions
- DOI:10.1021/acsearthspacechem.9b00173
- 发表时间:2019-09-19
- 期刊:
- 影响因子:3.4
- 作者:Huang, Liubin;Coddens, Ellen M.;Grassian, Vicki H.
- 通讯作者:Grassian, Vicki H.
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Vicki Grassian其他文献
Vicki Grassian的其他文献
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{{ truncateString('Vicki Grassian', 18)}}的其他基金
Collaborative Research: Sulfur Oxide Chemistry in Aqueous Aerosols--Mechanisms and Kinetics of Inorganic Sulfate and Organosulfur Compound Formation in the Atmosphere
合作研究:水气溶胶中的硫氧化物化学--大气中无机硫酸盐和有机硫化合物形成的机理和动力学
- 批准号:
2302301 - 财政年份:2023
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
Heterogeneous and Multiphase Reactions of Volatile and Semi-Volatile Organic Compounds on Mineral Dust Aerosol
挥发性和半挥发性有机化合物在矿尘气溶胶上的非均相和多相反应
- 批准号:
2002607 - 财政年份:2020
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
Molecular-Based Studies of Metal, Metal Oxide and Metal Sulfide Nanoparticle Transformations in the Environment
环境中金属、金属氧化物和金属硫化物纳米粒子转化的分子研究
- 批准号:
1606607 - 财政年份:2016
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
EAGER: NanoEHS Critical Needs - Determining Surface Composition in Biological Media and the Roles of Core Composition and Very Small Particles
EAGER:NanoEHS 关键需求 - 确定生物介质中的表面成分以及核心成分和非常小的颗粒的作用
- 批准号:
1640936 - 财政年份:2016
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
Heterogeneous Chemistry and Photochemistry in the Troposphere: Reactions of Mineral Dust and Other Metal-Containing Particle Surfaces at the Gas-Solid and Liquid-Solid Interface
对流层中的非均相化学和光化学:矿尘和其他含金属颗粒表面在气-固和液-固界面的反应
- 批准号:
1639757 - 财政年份:2016
- 资助金额:
$ 48.24万 - 项目类别:
Continuing Grant
NanoEHS: A Workshop Focused on Fundamental Science Needs, November 1, 2014, Boston, MA
NanoEHS:专注于基础科学需求的研讨会,2014 年 11 月 1 日,马萨诸塞州波士顿
- 批准号:
1657679 - 财政年份:2016
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
EAGER: NanoEHS Critical Needs - Determining Surface Composition in Biological Media and the Roles of Core Composition and Very Small Particles
EAGER:NanoEHS 关键需求 - 确定生物介质中的表面成分以及核心成分和非常小的颗粒的作用
- 批准号:
1424502 - 财政年份:2014
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
NanoEHS: A Workshop Focused on Fundamental Science Needs, November 1, 2014, Boston, MA
NanoEHS:专注于基础科学需求的研讨会,2014 年 11 月 1 日,马萨诸塞州波士顿
- 批准号:
1441457 - 财政年份:2014
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
Heterogeneous Chemistry and Photochemistry in the Troposphere: Reactions of Mineral Dust and Other Metal-Containing Particle Surfaces at the Gas-Solid and Liquid-Solid Interface
对流层中的非均相化学和光化学:矿尘和其他含金属颗粒表面在气-固和液-固界面的反应
- 批准号:
1305723 - 财政年份:2013
- 资助金额:
$ 48.24万 - 项目类别:
Continuing Grant
Chemistry Workshop on Nanomaterials and the Environment
纳米材料与环境化学研讨会
- 批准号:
1138118 - 财政年份:2011
- 资助金额:
$ 48.24万 - 项目类别:
Standard Grant
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