1
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Li J, Sheng L, Wang Q, Wang Y, Song L, Zhou Y, Zhu F. Study on ionic association behavior in sodium nitrate solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 285:121888. [PMID: 36170774 DOI: 10.1016/j.saa.2022.121888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 08/03/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Raman spectroscopy combined with component analysis and molecular dynamics simulation were used to study chemical species and their transformation in aqueous sodium solutions. Study shows that the characteristic vibrational frequency of nitrate ions (ν1-NO3-) blue-shifted from 1043.9 to 1046.9 cm-1, and the full width at half maximum increased from 6.8 to 10.8 cm-1 as the concentration increasing. When water/salt molar ratio (WSR) > 30, the relative concentration (RC) of free hydrated ions and solvent shared ion pair accounts for the vast majority, and there is almost no contact ion pair in solution. When WSR less than 30, due to the continuous reduction of the number of water molecules, the hydrated water molecules around the sodium ions and nitrate ions begin to decrease, and solvent shared ion pair or contact ion pair gradually forms. Sodium ions and nitrate ions mainly exist in a monodentate coordination. When WSR > 160, both the relative concentration of contact ion pair and complex structure is close to 0. This work proves that a lower RC of complex structure in solution, a smaller supersaturation of the solution is achieved, meaning aqueous sodium nitrate solution is easier to nucleate crystals.
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Affiliation(s)
- Jisheng Li
- Key Laboratory of Comprehensive and Highly Effificient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China
| | - Lili Sheng
- Qinghai Chemical Engineering Design & Research Institute Co., Ltd, Xining 810008, China
| | - Qiongyao Wang
- Jiangsu Runhuan Environment Technology Co., Ltd. Henan Branch, China
| | - Yunxia Wang
- Key Laboratory of Comprehensive and Highly Effificient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lulu Song
- Key Laboratory of Comprehensive and Highly Effificient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongquan Zhou
- Key Laboratory of Comprehensive and Highly Effificient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China
| | - Fayan Zhu
- Key Laboratory of Comprehensive and Highly Effificient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China.
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2
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Wang Y, Song L, Wang G, Liu H, Jing Z, Zhou Y, Zhu F, Zhang Y. Structure analysis of aqueous Mg(NO 3) 2 solutions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120478. [PMID: 34653851 DOI: 10.1016/j.saa.2021.120478] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
An increasing amount of research has investigated whether direct contact ion pairs (CIP) exist in magnesium nitrate solutions. In this work, the relationship between the concentration and microstructure, as well as the details of the ion pair structure in magnesium nitrate solutions were studied by Raman spectroscopy, molecular dynamics (MD) simulations, and density functional theory (DFT) calculations. Component analysis showed that solvent-shared ion pairs (SIPs) and free hydrated ions were the dominant species in dilute solution. SIPs gradually transformed into contact ion pairs as the concentration increased. Complex structures and CIPs were the main species when WSR < 10, and as the concentration further increased, the CIP content gradually decreased, while the number of complex structures gradually increased. MD simulations and DFT calculations provide a new understanding of the structural units of ion pairs in magnesium nitrate solutions. The SIPs and CIPs were mainly composed of cationic triple ion clusters with two magnesium ions and one nitrate ion. The nitrate ion mainly existed as monodentate ligand to form a CIP with the magnesium ion. As the solution concentration increased, triple ion clusters gradually transformed into more complex chain structures. The structural complexity of magnesium nitrate solutions deserves further attention.
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Affiliation(s)
- Yunxia Wang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lulu Song
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangguo Wang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongyan Liu
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China
| | - Zhuanfang Jing
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongquan Zhou
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China
| | - Fayan Zhu
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Provincial Key Laboratory of Resources Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, China.
| | - Yunhong Zhang
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, China.
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Wang M, Zheng N, Zhao D, Shang J, Zhu T. Using Micro-Raman Spectroscopy to Investigate Chemical Composition, Mixing States, and Heterogeneous Reactions of Individual Atmospheric Particles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:10243-10254. [PMID: 34286964 DOI: 10.1021/acs.est.1c01242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Measuring the chemical composition of individual atmospheric aerosol particles can provide direct evidence of their heterogeneous reactions and mixing states in the atmosphere. In this study, micro-Raman spectroscopy was used to measure the chemical composition of 1200 individual atmospheric particles in 11 samples collected in Beijing air. (NH4)2SO4, NH4NO3, various minerals, carbonaceous species (soot and organics), and NaNO3 were identified in the measured particles according to their characteristic Raman peaks. These species represented the main components of aerosol particles. In individual particles, NH4NO3 and (NH4)2SO4 either existed separately or were internally mixed. Possible reaction pathways of CaCO3 particles in the atmosphere were proposed based on the results of this study and laboratory simulations on heterogeneous reactions in the literature. CaCO3 reacted with N- and S-containing (nitrogen- and sulfur-containing) acidic gases to produce Ca(NO3)2 and CaSO4. Ca(NO3)2 further reacted with S-containing acidic gases and oxidants to produce CaSO4. Of the soot-containing particles, 23% were internal mixtures of soot and inorganic material. Of the organics-containing particles, 57% were internal mixtures of organic and inorganic materials. Micro-Raman spectroscopy directly identified functional groups and molecules in individual atmospheric particles under normal ambient conditions, rendering it a powerful tool for measuring the chemical composition of individual atmospheric particles with a diameter of ≥1.0 μm.
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Affiliation(s)
- Mingjin Wang
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Nan Zheng
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Defeng Zhao
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Jing Shang
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Tong Zhu
- BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
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4
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Xie Z, Kuai Y, Liu J, Gui H, Zhang J, Dai H, Xiao H, Chen DR, Zhang D. In Situ Quantitative Observation of Hygroscopic Growth of Single Nanoparticle Aerosol by Surface Plasmon Resonance Microscopy. Anal Chem 2020; 92:11062-11071. [DOI: 10.1021/acs.analchem.0c00431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhibo Xie
- Innovation Excellence Center for Urban Atmospheric Environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Kuai
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jianguo Liu
- Innovation Excellence Center for Urban Atmospheric Environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
- College of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230031, China
| | - Huaqiao Gui
- Innovation Excellence Center for Urban Atmospheric Environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
| | - Jiaoshi Zhang
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
| | - Haosheng Dai
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
| | - Hang Xiao
- Innovation Excellence Center for Urban Atmospheric Environment of CAS, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Da-Ren Chen
- Particle Laboratory, Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Richmond, Virginia 23284, United States
| | - Douguo Zhang
- Advanced Laser Technology Laboratory of Anhui Province and Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
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5
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Ishizaka S, Guo F, Tian X, Seng S, Tobon YA, Sobanska S. In Situ Observation of Efflorescence and Deliquescence Phase Transitions of Single NaCl and NaNO3 Mixture Particles in Air Using a Laser Trapping Technique. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190285] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shoji Ishizaka
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Fangqin Guo
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Xiaomeng Tian
- Department of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Samantha Seng
- Univ. Lille, CNRS, UMR 8516 - LASIR - Laboratoire de Spectrochimie Infrarouge et Raman, F-59000 Lille, France
| | - Yeny A. Tobon
- Univ. Lille, CNRS, UMR 8516 - LASIR - Laboratoire de Spectrochimie Infrarouge et Raman, F-59000 Lille, France
| | - Sophie Sobanska
- Institut des Sciences Moléculaires, CNRS UMR 5255, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
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6
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Zhu F, Zhang W, Liu H, Wang X, Zhou Y, Fang C, Zhang Y. Micro-Raman and density functional theory analyses of ion pairs in concentrated sodium tetrahydroxyborate droplets. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 224:117308. [PMID: 31442780 DOI: 10.1016/j.saa.2019.117308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 06/20/2019] [Accepted: 06/21/2019] [Indexed: 06/10/2023]
Abstract
In this study, ion pairs in a single sodium tetrahydroxyborate [Na [B(OH)4] droplet were analyzed using an "in-situ strategy" in which a sample-droplet of nanogram mass was deposited on a hydrophobic substrate and droplet was forced to enter into a supersaturated state by decreasing the relative humidity (RH) of the environment. The structure of the solvated [B(OH)4-] ionic moiety with various molar water-to-solute ratios (WSR) was analyzed using Raman spectroscopy. To confirm the structural changes in the droplet, electronic structure calculations were carried out using density functional theory (DFT). The frequencies calculated for the totally symmetric BO stretching vibration (vsym(BO)) of the [B(OH)4-] moiety were compared with those of the fundamental bands observed in the Raman spectra recorded of the droplets. The following results have been obtained: (i) when WSR is reduced from 9 to 0.1, the frequency of the band that corresponds to vsym(BO) shifts from 745 to 746 cm-1, and its full-width at half-maximum value increases from 19.7 to 20.5 cm-1; (ii) when WSR ≥7, the solvent-shared ion pair (SIP) is predominantly present in the solution, whereas in the case of WSR < 7, SIP transforms into a contact ion pair (CIP) formed by Na+ and [B(OH)4-] in bidentate coordination; (iii) when WSR = 3, most of the CIPs transform into a cationic type of triple ion pair (TIP) composed of two Na+ and one [B(OH)4-] in bidentate coordination; (iv) when WSR is further reduced, most TIP continually associate to form a more complex structure and with a small amount of six-membered ring complex also formed. These results will help us understand the ion association mechanism during dehydration process of Na[B(OH)4] droplets.
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Affiliation(s)
- Fayan Zhu
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, Key Laboratory of Salt Lake Resources Chemistry of Qinghai province, Xining 81008, People's Republic of China
| | - Wenqian Zhang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, Key Laboratory of Salt Lake Resources Chemistry of Qinghai province, Xining 81008, People's Republic of China
| | - Hongyan Liu
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, Key Laboratory of Salt Lake Resources Chemistry of Qinghai province, Xining 81008, People's Republic of China
| | - Xiufang Wang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, Key Laboratory of Salt Lake Resources Chemistry of Qinghai province, Xining 81008, People's Republic of China
| | - Yongquan Zhou
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, Key Laboratory of Salt Lake Resources Chemistry of Qinghai province, Xining 81008, People's Republic of China
| | - Chunhui Fang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 81008, Key Laboratory of Salt Lake Resources Chemistry of Qinghai province, Xining 81008, People's Republic of China.
| | - Yunhong Zhang
- The Institute of Chemical Physics, School of Chemistry, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
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7
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Lv XJ, Wang Y, Cai C, Pang SF, Ma JB, Zhang YH. Investigation of gel formation and volatilization of acetate acid in magnesium acetate droplets by the optical tweezers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 200:179-185. [PMID: 29680496 DOI: 10.1016/j.saa.2018.04.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 04/06/2018] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
Hygroscopicity and volatility of single magnesium acetate (MgAc2) aerosol particles at various relative humidities (RHs) are studied by a single-beam optical tweezers, and refractive indices (RIs) and morphology are characterized by cavity enhanced Raman spectroscopy. Gel formation and volatilization of acetate acid (HAc) in MgAc2 droplets are observed. Due to the formation of amorphous gel structure, water transposition in droplets at RH < 50% is significantly impeded on a time scale of 140,000 s. Different phase transition at RH < 10% is proposed to explain the distinct water loss after the gel formation. To compare volatilization of HAc in different systems, MgAc2 and sodium acetate (NaAc) droplets are maintained at several different stable RHs during up to 86,000 s. At RH ≈ 74%, magnesium hydroxide (Mg(OH)2) inclusions are formed in MgAc2 droplets due to the volatilization of HAc, and whispering gallery modes (WGMs) of MgAc2 droplets in the Raman spectrum quench after 50,000 s. In sharp contrast, after 86,000 s at RH ≈ 70%, NaAc droplets are in well-mixed liquid states, containing soluble sodium hydroxide (NaOH). At this state, the RI of NaAc droplet is increased, and the quenching of WGMs is not observable.
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Affiliation(s)
- Xi-Juan Lv
- The Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Yang Wang
- The Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Chen Cai
- The Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Shu-Feng Pang
- The Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jia-Bi Ma
- The Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
| | - Yun-Hong Zhang
- The Institute of Chemical Physics, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
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8
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Tan F, Jing B, Tong S, Ge M. The effects of coexisting Na 2SO 4 on heterogeneous uptake of NO 2 on CaCO 3 particles at various RHs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 586:930-938. [PMID: 28215800 DOI: 10.1016/j.scitotenv.2017.02.072] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/06/2017] [Accepted: 02/08/2017] [Indexed: 06/06/2023]
Abstract
Atmospheric particles can undergo nucleation, coagulation, chemical-aging, dissolution-precipitation or other atmospheric processes, resulting in complex multicomponent aerosols. The coexisting species have potentially important consequences in the heterogeneous reactions of multicomponent aerosol particles with polluted gases, which are still poorly understood. The effect of coexisting Na2SO4 on heterogeneous uptake of NO2 on CaCO3 particles is investigated in a broad RH range. The combination of DRIFTS, Raman, SEM and IC provides qualitative and quantitative information about the formation of nitrate and other surface species. Ca(NO3)2 and NaNO3 are generated on mixed CaCO3-Na2SO4 particles under dry condition. Both the amount of NO3- formed and the NO3- formation rates for the mixtures can be predicted based on the linear addition of those for pure CaCO3 and Na2SO4 particles under dry condition. The further reaction of Ca(NO3)2 with Na2SO4 could lead to the formation of crystal NaNO3 and CaSO4·0.5H2O at 30% RH. Coagulation between Ca2+ and SO42- in surface adsorbed water is observed after part conversion of CaCO3 to Ca(NO3)2, resulting in the formation of CaSO4·2H2O at 80% RH. The amount of NO3- formed on the mixtures is dramatically enhanced relative to the predictions at 30% and 80% RH. The findings presented here highlight the role of coexisting species in the heterogeneous reactions of trace gases with multicomponent aerosols due to the complexity of atmospheric particles.
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Affiliation(s)
- Fang Tan
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Bo Jing
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Shengrui Tong
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Maofa Ge
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Center for Excellence in Urban Atmospheric Environment (CEUAE), Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, PR China.
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9
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Ren HM, Cai C, Leng CB, Pang SF, Zhang YH. Nucleation Kinetics in Mixed NaNO3/Glycerol Droplets Investigated with the FTIR–ATR Technique. J Phys Chem B 2016; 120:2913-20. [DOI: 10.1021/acs.jpcb.5b12442] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hong-Mei Ren
- The
Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Chen Cai
- The
Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Chun-Bo Leng
- The
Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
- School
of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, People’s Republic of China
| | - Shu-Feng Pang
- The
Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Yun-Hong Zhang
- The
Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
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10
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Hygroscopicity of Mixed Glycerol/Mg(NO3)2/Water Droplets Affected by the Interaction between Magnesium Ions and Glycerol Molecules. J Phys Chem B 2015; 119:5558-66. [PMID: 25860879 DOI: 10.1021/acs.jpcb.5b00458] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tropospheric aerosols are usually complex mixtures of inorganic and organic components, which can influence the hygroscopicities of each other. In this research, we applied confocal Raman technology combined with optical microscopy to investigate the relationship between the hygroscopic behavior and the molecular interactions of mixed glycerol/Mg(NO3)2/water droplets. Raman spectra provide detailed structural information about the interactions between glycerol molecules and Mg(2+) ions, as well as information about the interactions between glycerol and NO3(-) ions through electrostatic interaction and hydrogen bonding. The change of the CH2 stretching band of glycerol molecules in mixed droplets suggests that the backbone structures of glycerol mainly transform from αα to γγ in the dehumidifying process, and the additional Mg(2+) ions strongly influence the structure of glycerol molecules. Because the existence of glycerol suppresses the crystallization of Mg(NO3)2·6H2O in the dehumidifying process, Mg(NO3)2 molecules in mixed droplets form an amorphous state rather than forming crystals of Mg(NO3)2·6H2O when the relative humidity is lower than 17.8%. Moreover, in mixed droplets, the molar ratio of NO3(-) to glycerol is higher in the center than in the outer region.
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11
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Zhang QN, Zhang Y, Cai C, Guo YC, Reid JP, Zhang YH. In Situ Observation on the Dynamic Process of Evaporation and Crystallization of Sodium Nitrate Droplets on a ZnSe Substrate by FTIR-ATR. J Phys Chem A 2014; 118:2728-37. [DOI: 10.1021/jp412073c] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Qing-Nuan Zhang
- Institute
of Chemical Physics, Key Laboratory of Cluster Science, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, China
| | - Yun Zhang
- Institute
of Chemical Physics, Key Laboratory of Cluster Science, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, China
| | - Chen Cai
- Institute
of Chemical Physics, Key Laboratory of Cluster Science, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, China
| | - Yu-Cong Guo
- Institute
of Chemical Physics, Key Laboratory of Cluster Science, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, China
| | - Jonathan P. Reid
- School of Chemistry, University of Bristol, Cantock’s Close, Bristol BS81TS, U.K
| | - Yun-Hong Zhang
- Institute
of Chemical Physics, Key Laboratory of Cluster Science, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, China
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12
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Eom HJ, Gupta D, Li X, Jung HJ, Kim H, Ro CU. Influence of Collecting Substrates on the Characterization of Hygroscopic Properties of Inorganic Aerosol Particles. Anal Chem 2014; 86:2648-56. [DOI: 10.1021/ac4042075] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hyo-Jin Eom
- Department
of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Republic of Korea
| | - Dhrubajyoti Gupta
- Department
of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Republic of Korea
| | - Xue Li
- Department
of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Republic of Korea
| | - Hae-Jin Jung
- Department
of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Republic of Korea
| | - HyeKyeong Kim
- Department
of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Republic of Korea
| | - Chul-Un Ro
- Department
of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Republic of Korea
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13
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Schindelholz E, Tsui LK, Kelly RG. Hygroscopic Particle Behavior Studied by Interdigitated Array Microelectrode Impedance Sensors. J Phys Chem A 2013; 118:167-77. [DOI: 10.1021/jp4098149] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eric Schindelholz
- University of Virginia, 395 McCormick Road, P.O. Box 400745, Charlottesville, Virginia 22904, United States
| | - Lok-kun Tsui
- University of Virginia, 395 McCormick Road, P.O. Box 400745, Charlottesville, Virginia 22904, United States
| | - Robert G. Kelly
- University of Virginia, 395 McCormick Road, P.O. Box 400745, Charlottesville, Virginia 22904, United States
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14
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Measurement of the association constants through micro-Raman spectra of supersaturated lithium perchlorate droplets. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4970-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Luo JH, Hu AM, Wang XL, Zhang YH, Li ZS. Adsorption of water on NaNO3(001) surface from first-principles calculations. J Colloid Interface Sci 2013. [DOI: 10.1016/j.jcis.2012.11.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Yu JY, Zhang Y, Tan SH, Liu Y, Zhang YH. Observation on the Ion Association Equilibria in NaNO3 Droplets Using Micro-Raman Spectroscopy. J Phys Chem B 2012; 116:12581-9. [PMID: 23003561 DOI: 10.1021/jp306367v] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jun-Ying Yu
- The Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Yun Zhang
- The Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - See-Hua Tan
- The Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Yong Liu
- Department of Chemistry, University of Colorado—Denver, Denver, Colorado 80217, United
States
| | - Yun-Hong Zhang
- The Institute of Chemical Physics, Key Laboratory of Cluster Science,
School of Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
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17
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Yu JY, Zhang Y, Zeng G, Zheng CM, Liu Y, Zhang YH. Suppression of NaNO3 crystal nucleation by glycerol: micro-Raman observation on the efflorescence process of mixed glycerol/NaNO3/water droplets. J Phys Chem B 2012; 116:1642-50. [PMID: 22229521 DOI: 10.1021/jp210824e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Although the hygroscopicity of a NaNO(3)/water microdroplet and a polyalcohol/water microdroplet, two of the most important aerosols in atmosphere, has been widely studied, little is known about the relationship between the hygroscopic behavior of mixed NaNO(3)/polyalcohol/water droplets and their structures on the molecular level. In this study, the hygroscopicity of mixed glycerol/NaNO(3)/water droplets deposited on a hydrophobic substrate was studied by micro-Raman spectroscopy with organic-to-inorganic molar ratios (OIRs) of 0.5, 1, and 2. In the mixed glycerol/NaNO(3)/water droplets, glycerol molecules tended to combine with Na(+) and NO(3)(-) ions by electrostatic interaction and hydrogen bonding, respectively. On the basis of the analyses of the changes of symmetric stretching (v(s)-CH(2)), asymmetric stretching (v(a)-CH(2)), their area ratio (Av(a)-CH(2)/Av(s)-CH(2)) of glycerol, and symmetric stretching band of NO(3)(-) (ν(1)-NO(3)(-)) with relative humidity (RH), it was found that the conformation of glycerol was transformed from αα mainly to γγ and partly to αγ with a decreasing RH in the mixed droplets, contrary to the case in the glycerol/water droplet. In addition, the glycerol with γγ and αγ conformation had strong interaction with Na(+) and NO(3)(-) respectively, which suppressed the formation of contact of ions and delayed the efflorescence relative humidity (ERH) for the mixed droplets compared to the NaNO(3)/water droplet.
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Affiliation(s)
- Jun-Ying Yu
- The Institute of Chemical Physics, Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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18
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Meresman H, Hudson AJ, Reid JP. Spectroscopic characterization of aqueous microdroplets containing inorganic salts. Analyst 2011; 136:3487-95. [PMID: 21373668 DOI: 10.1039/c0an00843e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
We have developed and studied methods to characterize the time-varying composition of liquid microdroplets, under controlled changes to environmental conditions, using Raman tweezers. This work has focussed on measurements of inorganic salts, such as nitrate and sulfate anions, which comprise a major fraction of the dissolved solutes in atmospheric aerosols. The experimental Raman intensities for the anions of inorganic salts in optically tweezed droplets were found to be in good agreement with theoretical estimates of photon scattering. The detection limit for sodium nitrate salt in a single particle was found to be ~4 pg. The mass of an inorganic salt in the droplet can be estimated from the Raman intensity of the anion bands using a calibration curve which is independent of droplet volume. The volume of the droplet, and concentration of solute, can be found directly from the spacing of morphology dependent resonances in the Raman band of water, or indirectly from the integrated-intensity of the Raman band for the solvent. The later strategy eliminates the uncertainty in the collection efficiency of Raman-scattered light related to varying particle sizes.
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Affiliation(s)
- Helena Meresman
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
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19
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Tong HJ, Reid JP, Dong JL, Zhang YH. Observation of the Crystallization and Supersaturation of Mixed Component NaNO3−Na2SO4 Droplets by FTIR-ATR and Raman Spectroscopy. J Phys Chem A 2010; 114:12237-43. [DOI: 10.1021/jp1080548] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hai-Jie Tong
- The Institute for Chemical Physics, Key Laboratory of Cluster Science, Beijing Institute of Technology, Beijing 100081, People’s Republic of China, and School of Chemistry, University of Bristol, Bristol, United Kingdom BS8 1TS
| | - Jonathan P. Reid
- The Institute for Chemical Physics, Key Laboratory of Cluster Science, Beijing Institute of Technology, Beijing 100081, People’s Republic of China, and School of Chemistry, University of Bristol, Bristol, United Kingdom BS8 1TS
| | - Jin-Ling Dong
- The Institute for Chemical Physics, Key Laboratory of Cluster Science, Beijing Institute of Technology, Beijing 100081, People’s Republic of China, and School of Chemistry, University of Bristol, Bristol, United Kingdom BS8 1TS
| | - Yun-Hong Zhang
- The Institute for Chemical Physics, Key Laboratory of Cluster Science, Beijing Institute of Technology, Beijing 100081, People’s Republic of China, and School of Chemistry, University of Bristol, Bristol, United Kingdom BS8 1TS
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20
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Guo X, Shou JJ, Zhang YH, Reid JP. Micro-Raman analysis of association equilibria in supersaturated NaClO4 droplets. Analyst 2010; 135:495-502. [DOI: 10.1039/b918978e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Zhao LJ, Zeng QX, Zhang YH. State of Water in Supersaturated Nitrate Aerosols Disclosed by the Raman Difference Spectra. J Phys Chem A 2008; 113:215-20. [DOI: 10.1021/jp8084974] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Li-Jun Zhao
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Qing-Xuan Zeng
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Yun-Hong Zhang
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
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22
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Lu PD, Wang F, Zhao LJ, Li WX, Li XH, Dong JL, Zhang YH, Lu GQ. Molecular events in deliquescence and efflorescence phase transitions of sodium nitrate particles studied by Fourier transform infrared attenuated total reflection spectroscopy. J Chem Phys 2008; 129:104509. [DOI: 10.1063/1.2973623] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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23
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Li XH, Zhao LJ, Dong JL, Xiao HS, Zhang YH. Confocal Raman Studies of Mg(NO3)2 Aerosol Particles Deposited on a Quartz Substrate: Supersaturated Structures and Complicated Phase Transitions. J Phys Chem B 2008; 112:5032-8. [DOI: 10.1021/jp709938x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Hong Li
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Li-Jun Zhao
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jin-Ling Dong
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Han-Shuang Xiao
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Yun-Hong Zhang
- The Institute of Chemical Physics, School of Science, and School of Aerospace Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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24
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Zhao LJ, Wang F, Zhang K, Zeng QX, Zhang YH. Deliquescence and Efflorescence Processes of Aerosol Particles Studied byin situFTIR and Raman Spectroscopy. CHINESE J CHEM PHYS 2008. [DOI: 10.1088/1674-0068/21/01/1-11] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Wang F, Zhang YH, Zhao LJ, Zhang H, Cheng H, Shou JJ. Micro-Raman study on the conformation behavior of succinate in supersaturated sodium succinate aerosols. Phys Chem Chem Phys 2008; 10:4154-8. [DOI: 10.1039/b719457a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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