1
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Li X, Bourg IC. Hygroscopic Growth of Adsorbed Water Films on Smectite Clay Particles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:1109-1118. [PMID: 38164899 PMCID: PMC10795194 DOI: 10.1021/acs.est.3c08253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
Hygroscopic growth of adsorbed water films on clay particles underlies a number of environmental science questions, from the air quality and climate impacts of mineral dust aerosols to the hydrology and mechanics of unsaturated soils and sedimentary rocks. Here, we use molecular dynamics (MD) simulations to establish the relation between adsorbed water film thickness (h) and relative humidity (RH) or disjoining pressure (Π), which has long been uncertain due to factors including sensitivity to particle shape, surface roughness, and aqueous chemistry. We present a new MD simulation approach that enables precise quantification of Π in films up to six water monolayers thick. We find that the hygroscopicity of phyllosilicate mineral surfaces increases in the order mica < K-smectite < Na-smectite. The relationship between Π and h on clay surfaces follows a double exponential decay with e-folding lengths of 2.3 and 7.5 Å. The two decay length scales are attributed to hydration repulsion and osmotic phenomena in the electrical double layer (EDL) at the clay-water interface.
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Affiliation(s)
- Xiaohan Li
- Department
of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Ian C. Bourg
- Department
of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey 08544, United States
- High
Meadows Environmental Institute, Princeton
University, Princeton, New Jersey 08544, United States
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2
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Fan L, Shen Z, Wang Z, Li J, Lyu J. Effect of photothermal conversion on ozone uptake over deposited mineral dust. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 871:162047. [PMID: 36754318 DOI: 10.1016/j.scitotenv.2023.162047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/16/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
The deposited dust provides a large surface for heterogeneous ozone uptake reactions in urban regions. Prior studies have barely considered the effect of the photothermal conversion of deposited dust and underlying surface on ozone uptake. In this study, Fe2O3, TiO2, α-Al2O3, and SiO2 were selected as model mineral dusts (MDs) to evaluate the photothermal effect. With an irradiation intensity of 100 mW/cm2, the uptake coefficients of ozone by Fe2O3, TiO2, α-Al2O3, and SiO2 were 2.4, 30, 2.72, and 2.83 times higher than those in a dark condition. For SiO2 and α-Al2O3, the increase in the uptake coefficient was due to the temperature increase induced by photothermal conversion. For Fe2O3 and TiO2, photoelectric and photothermal conversion simultaneously participated in ozone uptake reactions. At 70 °C, the contribution of thermal catalysis to ozone uptake over Fe2O3 and TiO2 was approximately 55.4 % and 55.0 %, respectively. The temperature increase induced by photothermal conversion also promoted MDs' activity for ozone uptake after removing the light source (after sunset). This work proves that the ozone uptake induced by the photothermal effect of deposited MDs and the underlying surface was the primary ozone elimination pathway in urban atmospheres.
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Affiliation(s)
- Lu Fan
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhizhang Shen
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhenyu Wang
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Ji Li
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou, Jiangsu 215009, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jinze Lyu
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China; Jiangsu College of Water Treatment Technology and Material Collaborative Innovation Center, Suzhou, Jiangsu 215009, China.
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3
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Xu W, Yang W, Han C, Yang H, Xue X. Significant influences of TiO 2 crystal structures on NO 2 and HONO emissions from the nitrates photolysis. J Environ Sci (China) 2021; 102:198-206. [PMID: 33637244 DOI: 10.1016/j.jes.2020.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/03/2020] [Accepted: 09/06/2020] [Indexed: 06/12/2023]
Abstract
The emissions of NO2 and HONO from the KNO3 photolysis in the presence of TiO2 were measured using a round-shape reactor coupled to a NOx analyzer. TiO2 played important roles in the emission flux density of NO2 (RNO2) and HONO (RHONO), depending on crystal structures and mass ratios of TiO2. RNO2 and RHONO significantly decreased with increasing the rutile and anatase mass ratios from 0 to 8 and 0.5 wt.%, respectively. Nevertheless, with further increasing the anatase mass ratio to 8 wt.%, there was an increase in RNO2 and RHONO. RNO2 on KNO3/TiO2/SiO2 had positive correlation with the KNO3 mass (1-20 wt.%), irradiation intensity (80-400 W/m2) and temperature (278-308 K), while it had the maximum value at the relative humidity (RH) of 55%. RHONO on KNO3/TiO2/SiO2 slightly varied with the KNO3 mass and temperature, whereas it increased with the irradiation intensity and RH. In addition, the mechanism for NO2 and HONO emissions from the nitrates photolysis and atmospheric implications were discussed.
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Affiliation(s)
- Wenwen Xu
- School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Wangjin Yang
- School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Chong Han
- School of Metallurgy, Northeastern University, Shenyang 110819, China.
| | - He Yang
- School of Metallurgy, Northeastern University, Shenyang 110819, China
| | - Xiangxin Xue
- School of Metallurgy, Northeastern University, Shenyang 110819, China
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4
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Anglada JM, Martins-Costa MTC, Francisco JS, Ruiz-López MF. Reactivity of Undissociated Molecular Nitric Acid at the Air-Water Interface. J Am Chem Soc 2020; 143:453-462. [PMID: 33355444 DOI: 10.1021/jacs.0c11841] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Recent experiments and theoretical calculations have shown that HNO3 may exist in molecular form in aqueous environments, where in principle one would expect this strong acid to be completely dissociated. Much effort has been devoted to understanding this fact, which has huge environmental relevance since nitric acid is a component of acid rain and also contributes to renoxification processes in the atmosphere. Although the importance of heterogeneous processes such as oxidation and photolysis have been evidenced by experiments, most theoretical studies on hydrated molecular HNO3 have focused on the acid dissociation mechanism. In the present work, we carry out calculations at various levels of theory to obtain insight into the properties of molecular nitric acid at the surface of liquid water (the air-water interface). Through multi-nanosecond combined quantum-classical molecular dynamics simulations, we analyze the interface affinity of nitric acid and provide an order of magnitude for its lifetime with regard to acid dissociation, which is close to the value deduced using thermodynamic data in the literature (∼0.3 ns). Moreover, we study the electronic absorption spectrum and calculate the rate constant for the photolytic process HNO3 + hν → NO2 + OH, leading to 2 × 10-6 s-1, about twice the value in the gas phase. Finally, we describe the reaction HNO3 + OH → NO3 + H2O using a cluster model containing 21 water molecules with the help of high-level ab initio calculations. A large number of reaction paths are explored, and our study leads to the conclusion that the most favorable mechanism involves the formation of a pre-reactive complex (HNO3)(OH) from which product are obtained through a coupled proton-electron transfer mechanism that has a free-energy barrier of 6.65 kcal·mol-1. Kinetic calculations predict a rate constant increase by ∼4 orders of magnitude relative to the gas phase, and we conclude that at the air-water interface, a lower limit for the rate constant is k = 1.2 × 10-9 cm3·molecule-1·s-1. The atmospheric significance of all these results is discussed.
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Affiliation(s)
- Josep M Anglada
- Departament de Química Biològica, Institut de Química Avançada de Catalunya (IQAC - CSIC), c/Jordi Girona 18, E-08034 Barcelona, Spain
| | - Marilia T C Martins-Costa
- Laboratoire de Physique et Chimie Théoriques, UMR CNRS 7019, University of Lorraine, BP 70239, 54506 Vandoeuvre-lès-Nancy, France
| | - Joseph S Francisco
- Department of Earth and Environmental Science and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6316, United States
| | - Manuel F Ruiz-López
- Laboratoire de Physique et Chimie Théoriques, UMR CNRS 7019, University of Lorraine, BP 70239, 54506 Vandoeuvre-lès-Nancy, France
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5
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Xia H, Huang D, Bao F, Li M, Zhang Y, Chen C, Zhao J. Photochemical aging of Beijing urban PM 2.5: Production of oxygenated volatile organic compounds. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 743:140751. [PMID: 32673920 DOI: 10.1016/j.scitotenv.2020.140751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/02/2020] [Accepted: 07/03/2020] [Indexed: 06/11/2023]
Abstract
PM2.5 has become the dominant atmospheric pollutant in many countries. Many components of PM2.5 are highly photoactive. However, the photochemical aging of PM2.5 remains poorly understood. In this study, the photoaging of real PM2.5 samples collected from 2017 to 2018 in Beijing under simulated solar radiation (λ ~ 340-850 nm) was investigated. Our study showed that large amounts of oxygenated volatile organic compounds (OVOCs), such as acetaldehyde, formic acid, acetone and acetic acid, were released during the photochemical aging of PM2.5. Furthermore, although a positive correlation between the OVOCs yield and the organic matter (OM) in PM2.5 was observed, the product distribution from the photoaging of PM2.5 was different from that in the direct photolysis of artificially synthesized SOA. Because of the release of OVOCs, the PM2.5 mass loss was evaluated to be ~1.80% per day under typical atmospheric conditions. The OVOCs released during the photoaging of PM2.5 may contribute substantially to the OVOCs sources omitted from troposphere chemistry models and may have a significant effect on the OVOCs distribution and oxidation capacity of the atmosphere.
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Affiliation(s)
- Hongling Xia
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Di Huang
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Fengxia Bao
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Meng Li
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Yue Zhang
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Chuncheng Chen
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China.
| | - Jincai Zhao
- Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
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6
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Abou-Ghanem M, Oliynyk AO, Chen Z, Matchett LC, McGrath DT, Katz MJ, Locock AJ, Styler SA. Significant Variability in the Photocatalytic Activity of Natural Titanium-Containing Minerals: Implications for Understanding and Predicting Atmospheric Mineral Dust Photochemistry. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:13509-13516. [PMID: 33058682 DOI: 10.1021/acs.est.0c05861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The billions of tons of mineral dust released into the atmosphere each year provide an important surface for reaction with gas-phase pollutants. These reactions, which are often enhanced in the presence of light, can change both the gas-phase composition of the atmosphere and the composition and properties of the dust itself. Because dust contains titanium-rich grains, studies of dust photochemistry have largely employed commercial titanium dioxide as a proxy for its photochemically active fraction; to date, however, the validity of this model system has not been empirically determined. Here, for the first time, we directly investigate the photochemistry of the complement of natural titanium-containing minerals most relevant to mineral dust, including anatase, rutile, ilmenite, titanite, and several titanium-bearing species. Using ozone as a model gas-phase pollutant, we show that titanium-containing minerals other than titanium dioxide can also photocatalyze trace gas uptake, that samples of the same mineral phase can display very different reactivity, and that prediction of dust photoreactivity based on elemental/mineralogical analysis and/or light-absorbing properties is challenging. Together, these results show that the photochemistry of atmospheric dust is both richer and more complex than previously considered, and imply that a full understanding of the scope and impact of dust-mediated processes will require the community to engage with this complexity via the study of ambient mineral dust samples from diverse source regions.
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Affiliation(s)
- Maya Abou-Ghanem
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Anton O Oliynyk
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
- Now at Chemistry and Biochemistry Department, Manhattan College, Riverdale, New York, New York 10471, United States
| | - Zhihao Chen
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Laura C Matchett
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
- Now at Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Devon T McGrath
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador A1B 3X7, Canada
| | - Michael J Katz
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador A1B 3X7, Canada
| | - Andrew J Locock
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Sarah A Styler
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
- Now at Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4M1, Canada
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7
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Ostaszewski CJ, Stuart NM, Lesko DMB, Kim D, Lueckheide MJ, Navea JG. Effects of Coadsorbed Water on the Heterogeneous Photochemistry of Nitrates Adsorbed on TiO2. J Phys Chem A 2018; 122:6360-6371. [DOI: 10.1021/acs.jpca.8b04979] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Natalie M. Stuart
- Chemistry Department, Skidmore College, Saratoga Springs, New York 12866-1632, United States
| | - Daniel M. B. Lesko
- Chemistry Department, Skidmore College, Saratoga Springs, New York 12866-1632, United States
| | - Deborah Kim
- Chemistry Department, Skidmore College, Saratoga Springs, New York 12866-1632, United States
| | - Matthew J. Lueckheide
- Chemistry Department, Skidmore College, Saratoga Springs, New York 12866-1632, United States
| | - Juan G. Navea
- Chemistry Department, Skidmore College, Saratoga Springs, New York 12866-1632, United States
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8
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Hettiarachchi E, Hurab O, Rubasinghege G. Atmospheric Processing and Iron Mobilization of Ilmenite: Iron-Containing Ternary Oxide in Mineral Dust Aerosol. J Phys Chem A 2018; 122:1291-1302. [DOI: 10.1021/acs.jpca.7b11320] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eshani Hettiarachchi
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, United States
| | - Omar Hurab
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, United States
| | - Gayan Rubasinghege
- Department of Chemistry, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, United States
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9
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Seng S, Picone AL, Bava YB, Juncal LC, Moreau M, Ciuraru R, George C, Romano RM, Sobanska S, Tobon YA. Photodegradation of methyl thioglycolate particles as a proxy for organosulphur containing droplets. Phys Chem Chem Phys 2018; 20:19416-19423. [DOI: 10.1039/c7cp08658j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photochemical generation of elemental sulphur and sulphate at the gas–liquid interface by heterogeneous interaction with gaseous O2and H2O.
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10
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Navea JG, Richmond E, Stortini T, Greenspan J. Water Adsorption Isotherms on Fly Ash from Several Sources. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10161-10171. [PMID: 28882043 DOI: 10.1021/acs.langmuir.7b02028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, horizontal attenuated total reflection (HATR) Fourier-transform infrared (FT-IR) spectroscopy was combined with quartz crystal microbalance (QCM) gravimetry to investigate the adsorption isotherms of water on fly ash, a byproduct of coal combustion in power plants. Because of composition variability with the source region, water uptake was studied at room temperature as a function of relative humidity (RH) on fly ash from several regions: United States, India, The Netherlands, and Germany. The FT-IR spectra show water features growth as a function of RH, with water absorbing on the particle surface in both an ordered (ice-like) and a disordered (liquid-like) structure. The QCM data was modeled using the Brunauer, Emmett, and Teller (BET) adsorption isotherm model. The BET model was found to describe the data well over the entire range of RH, showing that water uptake on fly ash takes place mostly on the surface of the particle, even for poorly combusted samples. In addition, the source region and power-plant efficiency play important roles in the water uptake and ice nucleation (IN) ability of fly ash. The difference in the observed water uptake and IN behavior between the four samples and mullite (3Al2O3·2SiO2), the aluminosilicate main component of fly ash, is attributed to differences in composition and the density of OH binding sites on the surface of each sample. A discussion is presented on the RH required to reach monolayer coverage on each sample as well as a comparison between surface sites of fly ash samples and enthalpies of adsorption of water between the samples and mullite.
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Affiliation(s)
- Juan G Navea
- Chemistry Department, Skidmore College , Saratoga Springs, New York 12866-1632, United States
| | - Emily Richmond
- Chemistry Department, Skidmore College , Saratoga Springs, New York 12866-1632, United States
| | - Talia Stortini
- Chemistry Department, Skidmore College , Saratoga Springs, New York 12866-1632, United States
| | - Jillian Greenspan
- Chemistry Department, Skidmore College , Saratoga Springs, New York 12866-1632, United States
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11
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Shang J, Xu WW, Ye CX, George C, Zhu T. Synergistic effect of nitrate-doped TiO 2 aerosols on the fast photochemical oxidation of formaldehyde. Sci Rep 2017; 7:1161. [PMID: 28442768 PMCID: PMC5430731 DOI: 10.1038/s41598-017-01396-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/29/2017] [Indexed: 11/12/2022] Open
Abstract
The uptake of formaldehyde (HCHO) on mineral dust affects its budget as well as particle properties, yet the process has not yet been fully investigate. Here, TiO2 and nitrate-doped TiO2 aerosols were used as proxies for mineral dust, and the uptake of HCHO was explored in a chamber under both dark and illuminated conditions. The uptake loss of HCHO on UV-illuminated aerosols is 2–9 times faster than its gaseous photolysis in our experimental system. The uptake coefficient in the range of 0.43–1.68 × 10−7 is 1–2 orders of magnitude higher than previous reports on model mineral dust particles. The reaction rate exhibits a Langmuir-Hinshelwood-type dependence on nitrate content and relative humidity, suggesting the competitive role of nitrate salts, water vapor and HCHO on the TiO2 surface. The reaction produces carbon dioxide as the main product and gaseous formic acid as an important intermediate. The hydroxyl radical produced on illuminated TiO2 primarily drives the fast oxidation of HCHO. The nitrate radical arising from the TiO2-catalyzed photoreaction of nitrate synergistically promotes the oxidation process. This study suggests a novel oxidation route for HCHO in the atmosphere, taking into account high abundance of both mineral dust and anthropogenic TiO2 aerosols.
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Affiliation(s)
- Jing Shang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, People's Republic of China.
| | - Wei Wei Xu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Chun Xiang Ye
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Christian George
- Université Lyon 1, CNRS, UMR 5256, IRCELYON, Institut de recherches sur la catalyse et l'environnement de Lyon, 2 avenue Albert Einstein, F-69626, Villeurbanne, France.
| | - Tong Zhu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, People's Republic of China
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12
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García-Pando CP, Miller RL, Perlwitz JP, Rodríguez S, Prospero JM. Predicting the mineral composition of dust aerosols: Insights from elemental composition measured at the Izaña Observatory. GEOPHYSICAL RESEARCH LETTERS 2016; 43:10520-10529. [PMID: 32692319 PMCID: PMC7370996 DOI: 10.1002/2016gl069873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Regional variations of dust mineral composition are fundamental to climate impacts but generally neglected in climate models. A challenge for models is that atlases of soil composition are derived from measurements following wet sieving, which destroys the aggregates potentially emitted from the soil. Aggregates are crucial to simulating the observed size distribution of emitted soil particles. We use an extension of brittle fragmentation theory in a global dust model to account for these aggregates. Our method reproduces the size-resolved dust concentration along with the approximately size-invariant fractional abundance of elements like Fe and Al in the decade-long aerosol record from the Izaña Observatory, off the coast of West Africa. By distinguishing between Fe in structural and free forms, we can attribute improved model behavior to aggregation of Fe and Al-rich clay particles. We also demonstrate the importance of size-resolved measurements along with elemental composition analysis to constrain models.
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Affiliation(s)
- Carlos Pérez García-Pando
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York, USA
- NASA Goddard Institute for Space Studies, New York, New York, USA
| | - Ron L Miller
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York, USA
- NASA Goddard Institute for Space Studies, New York, New York, USA
| | - Jan P Perlwitz
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York, USA
- NASA Goddard Institute for Space Studies, New York, New York, USA
- Now at Climate, Aerosol, and Pollution Research, LLC, New York, New York, USA
| | - Sergio Rodríguez
- Izaña Atmospheric Research Centre, AEMET, Joint Research Unit to CSIC "Studies on Atmospheric Pollution", Santa Cruz de Tenerife, Spain
| | - Joseph M Prospero
- Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA
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13
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Ye C, Gao H, Zhang N, Zhou X. Photolysis of Nitric Acid and Nitrate on Natural and Artificial Surfaces. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:3530-6. [PMID: 26936001 DOI: 10.1021/acs.est.5b05032] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Photolysis of nitric acid and nitrate (HNO3/nitrate) was investigated on the surfaces of natural and artificial materials, including plant leaves, metal sheets, and construction materials. The surfaces were conditioned in the outdoor air prior to experiments to receive natural depositions of ambient HNO3/nitrate and other atmospheric constituents. The photolysis rate constant (JHNO3(s)) of the surface HNO3/nitrate was measured based on the production rates of nitrous acid (HONO) and nitrogen oxides (NOx). The JHNO3(s) values, from 6.0 × 10(-6) s(-1) to 3.7 × 10(-4) s(-1), are 1 to 3 orders of magnitude higher than that of gaseous HNO3. The HONO was the major product from photolysis of HNO3/nitrate on most plant leaves, whereas NOx was the major product on most artificial surfaces. The JHNO3(s) values decreased with HNO3/nitrate surface density and could be described by a simple analytical equation. Within a typical range of HNO3/nitrate surface density in the low-NOx forested areas, photolysis of HNO3/nitrate on the forest canopy can be a significant source for HONO and NOx for the overlying atmosphere.
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Affiliation(s)
- Chunxiang Ye
- Wadsworth Center, New York State Department of Health , Albany, New York 12201, United States
| | - Honglian Gao
- Department of Environmental Health Sciences, State University of New York , Albany, New York 12201, United States
| | - Ning Zhang
- Department of Environmental Health Sciences, State University of New York , Albany, New York 12201, United States
| | - Xianliang Zhou
- Wadsworth Center, New York State Department of Health , Albany, New York 12201, United States
- Department of Environmental Health Sciences, State University of New York , Albany, New York 12201, United States
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14
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Romanías MN, Ourrad H, Thévenet F, Riffault V. Investigating the Heterogeneous Interaction of VOCs with Natural Atmospheric Particles: Adsorption of Limonene and Toluene on Saharan Mineral Dusts. J Phys Chem A 2016; 120:1197-212. [DOI: 10.1021/acs.jpca.5b10323] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manolis N. Romanías
- Mines Douai, SAGE, 941
rue Charles Bourseul, F-59508 Douai, France
- Université de Lille, F-59000 Lille, France
| | - Habib Ourrad
- Mines Douai, SAGE, 941
rue Charles Bourseul, F-59508 Douai, France
- Université de Lille, F-59000 Lille, France
| | - Frédéric Thévenet
- Mines Douai, SAGE, 941
rue Charles Bourseul, F-59508 Douai, France
- Université de Lille, F-59000 Lille, France
| | - Véronique Riffault
- Mines Douai, SAGE, 941
rue Charles Bourseul, F-59508 Douai, France
- Université de Lille, F-59000 Lille, France
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15
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George C, Ammann M, D’Anna B, Donaldson DJ, Nizkorodov S. Heterogeneous photochemistry in the atmosphere. Chem Rev 2015; 115:4218-58. [PMID: 25775235 PMCID: PMC4772778 DOI: 10.1021/cr500648z] [Citation(s) in RCA: 279] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Indexed: 02/06/2023]
Affiliation(s)
- Christian George
- Université
de Lyon 1, Lyon F-69626, France
- CNRS, UMR5256,
IRCELYON, Institut de Recherches sur la Catalyse et
l’Environnement de Lyon, Villeurbanne F-69626, France
| | - Markus Ammann
- Laboratory
of Radiochemistry and Environmental Chemistry, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Barbara D’Anna
- Université
de Lyon 1, Lyon F-69626, France
- CNRS, UMR5256,
IRCELYON, Institut de Recherches sur la Catalyse et
l’Environnement de Lyon, Villeurbanne F-69626, France
| | - D. J. Donaldson
- Department
of Chemistry and Department of Physical & Environmental Sciences, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Sergey
A. Nizkorodov
- Department
of Chemistry, University of California, Irvine, California 92697, United States
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16
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Pöschl U, Shiraiwa M. Multiphase chemistry at the atmosphere-biosphere interface influencing climate and public health in the anthropocene. Chem Rev 2015; 115:4440-75. [PMID: 25856774 DOI: 10.1021/cr500487s] [Citation(s) in RCA: 214] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ulrich Pöschl
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
| | - Manabu Shiraiwa
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
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17
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Zhao J, Zhu C, Lu J, Zou J, Peng S, Chen T. 308nm photochemical reaction of gaseous HNO3 and benzene on α-Fe2O3 surfaces. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2014.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Lesko DMB, Coddens EM, Swomley HD, Welch RM, Borgatta J, Navea JG. Photochemistry of nitrate chemisorbed on various metal oxide surfaces. Phys Chem Chem Phys 2015. [DOI: 10.1039/c5cp02903a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Atmospheric aerosols are known to provide an important surface for gas–solid interfaces that can lead to heterogeneous reactions impacting tropospheric chemistry.
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Affiliation(s)
| | | | | | | | - Jaya Borgatta
- Chemistry Department
- Skidmore College
- Saratoga Springs
- USA
| | - Juan G. Navea
- Chemistry Department
- Skidmore College
- Saratoga Springs
- USA
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19
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Al-Abadleh HA. Review of the bulk and surface chemistry of iron in atmospherically relevant systems containing humic-like substances. RSC Adv 2015. [DOI: 10.1039/c5ra03132j] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The current state of knowledge and future research directions of the bulk and surface chemistry of iron relevant to atmospheric surfaces are reviewed.
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Affiliation(s)
- Hind A. Al-Abadleh
- Department of Chemistry and Biochemistry
- Wilfrid Laurier University
- Waterloo
- Canada
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20
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Nishino N, Hollingsworth SA, Stern AC, Roeselová M, Tobias DJ, Finlayson-Pitts BJ. Interactions of gaseous HNO3 and water with individual and mixed alkyl self-assembled monolayers at room temperature. Phys Chem Chem Phys 2014; 16:2358-67. [PMID: 24352159 PMCID: PMC4000124 DOI: 10.1039/c3cp54118e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The major removal processes for gaseous nitric acid (HNO3) in the atmosphere are dry and wet deposition onto various surfaces. The surface in the boundary layer is often covered with organic films, but the interaction of gaseous HNO3 with them is not well understood. To better understand the factors controlling the uptake of gaseous nitric acid and its dissociation in organic films, studies were carried out using single component and mixtures of C8 and C18 alkyl self-assembled monolayers (SAMs) attached to a germanium (Ge) attenuated total reflectance (ATR) crystal upon which a thin layer of SiOx had been deposited. For comparison, diffuse reflectance infrared Fourier transform spectrometry (DRIFTS) studies were also carried out using a C18 SAM attached to the native oxide layer on the surface of silicon powder. These studies show that the alkyl chain length and order/disorder of the SAMs does not significantly affect the uptake or dissociation/recombination of molecular HNO3. Thus, independent of the nature of the SAM, molecular HNO3 is observed up to 70-90% relative humidity. After dissociation, molecular HNO3 is regenerated on all SAM surfaces when water is removed. Results of molecular dynamics simulations are consistent with experiments and show that defects and pores on the surfaces control the uptake, dissociation and recombination of molecular HNO3. Organic films on surfaces in the boundary layer will certainly be more irregular and less ordered than SAMs studied here, therefore undissociated HNO3 may be present on surfaces in the boundary layer to a greater extent than previously thought. The combination of this observation with the results of recent studies showing enhanced photolysis of nitric acid on surfaces suggests that renoxification of deposited nitric acid may need to be taken into account in atmospheric models.
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Affiliation(s)
- Noriko Nishino
- Department of Chemistry, University of California, Irvine, California, 92697-2025, USA
| | - Scott A. Hollingsworth
- Department of Molecular Biology and Biochemistry, University of California Irvine, CA, 92697-2025, USA
| | - Abraham C. Stern
- Department of Chemistry, University of California, Irvine, California, 92697-2025, USA
| | - Martina Roeselová
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nam. 2, 16610 Prague 6, Czech Republic
| | - Douglas J. Tobias
- Department of Chemistry, University of California, Irvine, California, 92697-2025, USA
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21
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Tofan-Lazar J, Al-Abadleh HA. Surface water enhances the uptake and photoreactivity of gaseous catechol on solid iron(III) chloride. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 48:394-402. [PMID: 24295105 DOI: 10.1021/es404321s] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Uptake and photoreactivity of catechol-Fe complexes are investigated at the gas/solid interface under humid and dry conditions, along with the nature of the hydrogen-bonding network of adsorbed water. Catechol was chosen as a simple model for organics in aerosols. Iron chloride was used to distinguish ionic mobility from binding to coordinated iron(III) in hematite. Studies were conducted using diffuse reflectance infrared Fourier transform spectroscopy as a function of irradiation time. Results show that adsorbed water at 30% relative humidity (RH), not light, increases the concentration of adsorbed catechol by a factor of 3 over 60 min relative to dry conditions. Also, our data show that, at 30% RH and under light and dark conditions, growth factors describing the concentration of adsorbed catechol are very similar suggesting that light does not significantly enhance the uptake of catechol vapor on FeCl3. Surface water also enhances the initial photodecay kinetics of catechol-Fe complexes at 30% RH by a factor of 10 relative to control experiments (RH < 1%, or no FeCl3 under humid conditions). Absorptions assigned to carbonyl groups were not observed with irradiation time, which was explained by the dominance of FeCl(2+) species relative to FeOH(2+) in the highly acidic "quasi-liquid" phase at 30% RH. Clear differences in the hydrogen-bonding network upon gaseous catechol uptake are observed in the dark and light and during the photodecay of adsorbed catechol. The implications of these results on our understanding of interfacial processes in aged iron-containing surfaces are discussed.
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Affiliation(s)
- Julia Tofan-Lazar
- Chemistry Department, Wilfrid Laurier University , Waterloo, Ontario N2L 3C5, Canada
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22
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Bisson PJ, Shultz MJ. Hydrogen bonding in the prism face of ice I(h) via sum frequency vibrational spectroscopy. J Phys Chem A 2013; 117:6116-25. [PMID: 23451801 DOI: 10.1021/jp400129f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The prism face of single crystal ice I(h) has been studied using sum frequency vibrational spectroscopy focusing on identification of resonances in the hydrogen-bonded region. Several modes have been observed at about 3400 cm(-1); each mode is both polarization and orientation dependent. The polarization capabilities of sum frequency generation (SFG) are used in conjunction with the crystal orientation to characterize three vibrational modes. These modes are assigned to three-coordinated water molecules in the top-half bilayer having different bonding and orientation motifs.
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Affiliation(s)
- Patrick J Bisson
- Laboratory for Water and Surface Studies, Department of Chemistry, Pearson Laboratory, Tufts University, Medford, Massachusetts 02155, USA
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23
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Ma J, Liu Y, Han C, Ma Q, Liu C, He H. Review of heterogeneous photochemical reactions of NOy on aerosol - A possible daytime source of nitrous acid (HONO) in the atmosphere. J Environ Sci (China) 2013; 25:326-334. [PMID: 23596953 DOI: 10.1016/s1001-0742(12)60093-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
As an important precursor of hydroxyl radical, nitrous acid (HONO) plays a key role in the chemistry of the lower atmosphere. Recent atmospheric measurements and model calculations show strong enhancement for HONO formation during daytime, while they are inconsistent with the known sources in the atmosphere, suggesting that current models are lacking important sources for HONO. In this article, heterogeneous photochemical reactions of nitric acid/nitrate anion and nitrogen oxide on various aerosols were reviewed and their potential contribution to HONO formation was also discussed. It is demonstrated that HONO can be formed by photochemical reaction on surfaces with deposited HNO3, by photocatalytic reaction of NO2 on TiO2 or TiO2-containing materials, and by photochemical reaction of NO2 on soot, humic acids or other photosensitized organic surfaces. Although significant uncertainties still exist in the exact mechanisms and the yield of HONO, these additional sources might explain daytime observations in the atmosphere.
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Affiliation(s)
- Jinzhu Ma
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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24
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Rubasinghege G, Grassian VH. Role(s) of adsorbed water in the surface chemistry of environmental interfaces. Chem Commun (Camb) 2013; 49:3071-94. [DOI: 10.1039/c3cc38872g] [Citation(s) in RCA: 152] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Lasne J, Laffon C, Parent P. Proton transfer reactions between nitric acid and acetone, hydroxyacetone, acetaldehyde and benzaldehyde in the solid phase. Phys Chem Chem Phys 2012; 14:15715-21. [PMID: 23090634 DOI: 10.1039/c2cp42033c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The heterogeneous and homogeneous reactions of acetone, hydroxyacetone, acetaldehyde and benzaldehyde with solid nitric acid (HNO(3)) films have been studied with Reflection-Absorption Infrared Spectroscopy (RAIRS) under Ultra-High Vacuum (UHV) conditions in the 90-170 K temperature range. In the bulk or at the surface of the films, nitric acid transfers its proton to the carbonyl function of the organic molecules, producing protonated acetone-H(+), hydroxyacetone-H(+), acetaldehyde-H(+) and benzaldehyde-H(+), and nitrate anions NO(3)(-), a reaction not observed when nitric acid is previously hydrated [J. Lasne, C. Laffon and Ph. Parent, Phys. Chem. Chem. Phys., 2012, 14, 697]. This provides a molecular-scale description of the carbonyl protonation reaction in an acid medium, the first step of the acid-catalyzed condensation of carbonyl compounds, fuelling the growth of secondary organic aerosols (SOA) in the atmosphere.
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Affiliation(s)
- Jérôme Lasne
- Laboratoire de Chimie Physique-Matière et Rayonnement, Université Pierre et Marie Curie (UPMC -Univ. Paris 06) and CNRS (UMR 7614), 11 rue Pierre et Marie Curie, 75231 Paris Cedex 05, France
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26
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Schulz M, Prospero JM, Baker AR, Dentener F, Ickes L, Liss PS, Mahowald NM, Nickovic S, García-Pando CP, Rodríguez S, Sarin M, Tegen I, Duce RA. Atmospheric transport and deposition of mineral dust to the ocean: implications for research needs. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:10390-10404. [PMID: 22994868 DOI: 10.1021/es300073u] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper reviews our knowledge of the measurement and modeling of mineral dust emissions to the atmosphere, its transport and deposition to the ocean, the release of iron from the dust into seawater, and the possible impact of that nutrient on marine biogeochemistry and climate. Of particular concern is our poor understanding of the mechanisms and quantities of dust deposition as well as the extent of iron solubilization from the dust once it enters the ocean. Model estimates of dust deposition in remote oceanic regions vary by more than a factor of 10. The fraction of the iron in dust that is available for use by marine phytoplankton is still highly uncertain. There is an urgent need for a long-term marine atmospheric surface measurement network, spread across all oceans. Because the southern ocean is characterized by large areas with high nitrate but low chlorophyll surface concentrations, that region is particularly sensitive to the input of dust and iron. Data from this region would be valuable, particularly at sites downwind from known dust source areas in South America, Australia, and South Africa. Coordinated field experiments involving both atmospheric and marine measurements are recommended to address the complex and interlinked processes and role of dust/Fe fertilization on marine biogeochemistry and climate.
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27
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Tribe L, Hinrichs R, Kubicki JD. Adsorption of Nitrate on Kaolinite Surfaces: A Theoretical Study. J Phys Chem B 2012; 116:11266-73. [DOI: 10.1021/jp3053295] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lorena Tribe
- Division of
Science, The Pennsylvania State University, Berks Campus, Reading,
Pennsylvania 19610, United States
| | - Ryan Hinrichs
- Department of Chemistry, Drew University, Madison, New Jersey 07950, United
States
| | - James D. Kubicki
- Department of Geosciences and the Earth & Environmental Systems Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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28
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29
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Styler SA, Donaldson DJ. Heterogeneous photochemistry of oxalic acid on Mauritanian sand and Icelandic volcanic ash. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:8756-63. [PMID: 22816795 DOI: 10.1021/es300953t] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Teragram quantities of crustal and volcanic aerosol are released into the atmosphere on an annual basis. Although these substrates contain photoactive metal oxides, little is known about the role that they may play in catalyzing the heterogeneous phototransformation of semivolatile organic species. In the present study, we have investigated oxalic acid photochemistry at the surface of Fe(2)O(3), TiO(2), Mauritanian sand, and Icelandic volcanic ash in the presence and absence of oxygen using a photochemical Knudsen cell reactor. Illumination of all sample types resulted in the production of gas-phase CO(2). In the case of Mauritanian sand, the production of gas-phase CO(2) scaled with the loss of surface oxalic acid. In the absence of oxygen, the production of CO(2) by the sand and ash films scaled with the absorption spectrum of iron oxalate, which suggests that the reaction is at least in part iron-mediated. The presence of oxygen suppressed CO(2) production at the Fe(2)O(3) surface, enhanced CO(2) production at the Mauritanian sand surface, and did not have a net effect upon CO(2) production at the Icelandic ash surface. These different oxygen dependencies imply that oxalic acid photochemistry at the authentic surfaces under study was not solely iron-mediated. Experiments at the TiO(2) surface, which showed enhanced CO(2) production from oxalic acid in the presence of oxygen, suggest that Ti-mediated photochemistry played an important role. In summary, these results provide evidence that solid-phase aerosol photochemistry may influence the atmospheric lifetime of oxalic acid in arid regions, where its removal via wet deposition is insignificant.
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Affiliation(s)
- Sarah A Styler
- Department of Chemistry, University of Toronto, Toronto, Ontario, Canada
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30
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Kavouras IG, Nikolich G, Etyemezian V, DuBois DW, King J, Shafer D. In situ observations of soil minerals and organic matter in the early phases of prescribed fires. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd017420] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Nishino N, Finlayson-Pitts BJ. Thermal and photochemical reactions of NO2 on chromium(iii) oxide surfaces at atmospheric pressure. Phys Chem Chem Phys 2012; 14:15840-8. [DOI: 10.1039/c2cp42292a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Noriko Nishino
- Department of Chemistry, University of California, Irvine, California 92697-2025, USA
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32
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George C, D’Anna B, Herrmann H, Weller C, Vaida V, Donaldson DJ, Bartels-Rausch T, Ammann M. Emerging Areas in Atmospheric Photochemistry. Top Curr Chem (Cham) 2012; 339:1-53. [DOI: 10.1007/128_2012_393] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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33
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Chen H, Stanier CO, Young MA, Grassian VH. A Kinetic Study of Ozone Decomposition on Illuminated Oxide Surfaces. J Phys Chem A 2011; 115:11979-87. [DOI: 10.1021/jp208164v] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Haihan Chen
- Departments of Chemical and Biochemical Engineering, and ‡Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Charles O. Stanier
- Departments of Chemical and Biochemical Engineering, and ‡Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Mark A. Young
- Departments of Chemical and Biochemical Engineering, and ‡Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
| | - Vicki H. Grassian
- Departments of Chemical and Biochemical Engineering, and ‡Chemistry, The University of Iowa, Iowa City, Iowa 52242, United States
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