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Zhang G, Liu M, Han Y, Wang Z, Liu W, Zhang Y, Xu J. The role of aldehydes on sulfur based-new particle formation: a theoretical study. RSC Adv 2024; 14:13321-13335. [PMID: 38694968 PMCID: PMC11061877 DOI: 10.1039/d4ra00952e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 04/17/2024] [Indexed: 05/04/2024] Open
Abstract
Aldehydes play a crucial role in the formation of atmospheric particles, attracting significant attention due to their environmental impact. However, the microscopic mechanisms underlying the formation of aldehyde-involved particles remain uncertain. In this study, through quantum chemical calculations and molecular dynamics (MD) simulations, we investigate the microscopic formation mechanisms of binary and ternary systems composed of three representative aldehydes, two sulfur-based acids, water, and two bases. Our research findings reveal that the most stable structures of acid-aldehyde clusters involve the connection of acids and aldehyde compounds through hydrogen bonds without involving proton transfer reactions, indicating relatively poor cluster stability. However, with the introduction of a third component, the stability of 18 clusters significantly increase. Among these, in ten systems, acids act as catalysts, facilitating reactions between aldehyde compounds and water or alkaline substances to generate glycols and amino alcohols. However, according to MD simulations conducted at 300 K, these acids readily dissociate from the resulting products. In the remaining eight systems, the most stable structural feature involves ion pairs formed by proton transfer reactions between acids and aldehyde compounds. These clusters exhibit remarkable thermodynamic stability. Furthermore, the acidity of the acid, the nature of nucleophilic agents, and the type of aldehyde all play significant roles in cluster stability and reactivity, and they have synergistic effects on the nucleation process. This study offers microscopic insights into the processes of new particle formation involving aldehydes, contributing to a deeper understanding of atmospheric chemistry at the molecular level.
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Affiliation(s)
- Guohua Zhang
- Jinhua Advanced Research Institute Jinhua Zhejiang 321013 P. R. China
| | - Min Liu
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University Hangzhou Zhejiang 311300 P. R. China
| | - Yaning Han
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University Hangzhou Zhejiang 311300 P. R. China
| | - Zhongteng Wang
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University Hangzhou Zhejiang 311300 P. R. China
| | - Wei Liu
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University Hangzhou Zhejiang 311300 P. R. China
| | - Ying Zhang
- Jinhua Advanced Research Institute Jinhua Zhejiang 321013 P. R. China
| | - Jing Xu
- Department of Optical Engineering, College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University Hangzhou Zhejiang 311300 P. R. China
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2
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Liu Y, Xie HB, Ma F, Chen J, Elm J. Amine-Enhanced Methanesulfonic Acid-Driven Nucleation: Predictive Model and Cluster Formation Mechanism. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:7751-7760. [PMID: 35593326 DOI: 10.1021/acs.est.2c01639] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Atmospheric amines are considered to be an effective enhancer for methanesulfonic acid (MSA)-driven nucleation. However, out of the 195 detected atmospheric amines, the enhancing potential (EP) has so far only been studied for five amines. This severely hinders the understanding of the contribution of amines to MSA-driven nucleation. Herein, a two-step procedure was employed to probe the EP of various amines on MSA-driven nucleation. Initially, the formation free energies (ΔG) of 50 MSA-amine dimer clusters were calculated. Based on the calculated ΔG values, a robust quantitative structure-activity relationship (QSAR) model was built and utilized to predict the ΔG values of the remaining 145 amines. The QSAR model identified two guanidino-containing compounds as the potentially strongest enhancer for MSA-driven nucleation. Second, the EP of guanidino-containing compounds was studied by employing larger clusters and selecting guanidine (Gud) as a representative. The results indicate that Gud indeed has the strongest EP. The Gud-MSA system presents a unique clustering mechanism, proceeding via the initial formation of the (Gud)1(MSA)1 cluster, and subsequently by cluster collisions with either a (Gud)1(MSA)1 or (Gud)2(MSA)2 cluster. The developed QSAR model and the identification of amines with the strongest EP provide a foundation for comprehensively evaluating the contribution of atmospheric amines to MSA-driven nucleation.
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Affiliation(s)
- Yu Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Hong-Bin Xie
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Fangfang Ma
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Jonas Elm
- Department of Chemistry and iClimate, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
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Liu M, Myllys N, Han Y, Wang Z, Chen L, Liu W, Xu J. Microscopic Insights Into the Formation of Methanesulfonic Acid–Methylamine–Ammonia Particles Under Acid-Rich Conditions. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.875585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Understanding the microscopic mechanisms of new particle formation under acid-rich conditions is of significance in atmospheric science. Using quantum chemistry calculations, we investigated the microscopic formation mechanism of methanesulfonic acid (MSA)–methylamine (MA)–ammonia (NH3) clusters. We focused on the binary (MSA)2n-(MA)n and ternary (MSA)3n-(MA)n-(NH3)n, (n = 1–4) systems which contain more acid than base molecules. We found that the lowest-energy isomers in each system possess considerable thermodynamic and dynamic stabilities. In studied cluster structures, all bases are protonated, and they form stable ion pairs with MSA, which contribute to the charge transfer and the stability of clusters. MA and NH3 have a synergistic effect on NPF under acid-rich conditions, and the role of NH3 becomes more remarkable as cluster size increases. The excess of MSA molecules does not only enhance the stability of clusters, but provides potential sites for further growth.
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4
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Chen T, Ge Y, Liu Y, He H. N-nitration of secondary aliphatic amines in the particle phase. CHEMOSPHERE 2022; 293:133639. [PMID: 35065182 DOI: 10.1016/j.chemosphere.2022.133639] [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: 09/29/2021] [Revised: 12/30/2021] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Amines are frequently detected in atmospheric particles and are internally mixed with other particle-phase components. However, research on the further reactions of amine with reactive species after entering the particle phase is still limited. This study investigated the nitration reaction process of particulate dimethylamine (DMA), formed via a substitution reaction between DMA and (NH4)2SO4, with NOx. In situ attenuated total reflectance-infrared Fourier transform spectroscopy (in situ ATR-FTIR) and proton transfer reaction mass spectroscopy (PTR-MS), as well as DFT methods at the B3LYP level using the 6-311++G (d, p) basis set, were mainly used to confirm the formation of nitramine and nitrosamine in the nitration/nitrosation process of DMA. A hydrogen-bonding intermediate ([(CH3)2N⋯HONO]) is initially formed when particulate DMA reacts with NO2 followed by aminyl radical formation, and then nitr- and nitros-amine form through addition reactions with NO2 and NO, respectively. The dimer of NO2 (i.e., N2O4) and the product of NO and NO2 (i.e., N2O3) can also react with DMA to attack the lone pair electrons on the central N atom of DMA to finally form nitr- and nitros-amine. This study helps reveal the nitration reaction mechanism of organic amines in the particle phase. It also aids in understanding the process of nitrogen cycling in the atmosphere.
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Affiliation(s)
- Tianzeng Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Yanli Ge
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongchun Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Hong He
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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5
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Ma D, Liu W, Huang Y, Xia D, Lian Q, He C. Enhanced Catalytic Ozonation for Eliminating CH 3SH via Stable and Circular Electronic Metal-Support Interactions of Si-O-Mn Bonds with Low Mn Loading. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:3678-3688. [PMID: 35195408 DOI: 10.1021/acs.est.1c07065] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Catalytic ozonation of methyl mercaptan (CH3SH) can effectively control this unbearable odorous sulfur-containing volatile organic compound (S-VOC). The construction of an electronic metal-support interaction (EMSI) coordination structure to maximize the number of active sites and increase the intrinsic activity of active sites is an effective means to improve catalytic performance. In this work, the abundant Si-OH groups on PSBA-15 (SBA-15 before calcination) were used to anchor Mn to form a Si-O-Mn-based EMSI coordination structure. Detailed characterizations and theoretical simulations reveal that the strong EMSI effect significantly adjusts and stabilizes the electronic structure of Mn 3d states, resulting in an electron-rich center on the Si-O-Mn bond to promote the specific adsorption/activation of ozone (O3) and an electron-poor center on the (Si-O-)Mn-O bond to adsorb a large amount of CH3SH accompanied by its own oxidative degradation. In situ Raman and in situ Fourier transform infrared (FTIR) analyses identify that catalytic ozonation over 3.0Mn-PSBA generates atomic oxygen species (AOS/*O) and reactive oxygen species (ROS/•O2-) to achieve efficient decomposition of CH3SH into CO2/SO42-. Furthermore, the electrons obtained from CH3SH in electron-poor centers are transferred to maintain the redox cycle of Mn2+/3+ → Mn4+ → Mn2+/3+ through the internal bond bridge, thus accomplishing the efficient and stable degradation of CH3SH prolonged to 180 min. Therefore, the rational design of catalysts with abundant active sites and optimized inherent activity via the EMSI effect can provide significant potential to improve catalytic performance and eliminate odorous gases.
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Affiliation(s)
- Dingren Ma
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Weiqi Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Yajing Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Dehua Xia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Qiyu Lian
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Chun He
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
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6
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Huang Y, Ma D, Liu W, Xia D, Hu L, Yang J, Liao P, He C. Enhanced Catalytic Ozonation for Eliminating CH 3SH via Graphene-Supported Positively Charged Atomic Pt Undergoing Pt 2+/Pt 4+ Redox Cycle. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:16723-16734. [PMID: 34882404 DOI: 10.1021/acs.est.1c06938] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Constructing catalysts with electronic metal-support interaction (EMSI) is promising for catalytic reactions. Herein, graphene-supported positively charged (Pt2+/Pt4+) atomically dispersed Pt catalysts (AD-Pt-G) with PtxC3 (x = 1, 2, and 4)-based EMSI coordination structures are achieved for boosting the catalytic ozonation for odorous CH3SH removal. A CH3SH removal efficiency of 91.5% can be obtained during catalytic ozonation using optimum 0.5AD-Pt-G within 12 h under a gas hourly space velocity of 60,000 mL h-1 g-1, whereas that of pure graphene is 40.4%. Proton transfer reaction time-of-flight mass spectrometry, in situ diffuse reflectance infrared Fourier transform spectroscopy/Raman, and electron spin resonance verify that the PtxC3 coordination structure with atomic Pt2+ sites on AD-Pt-G can activate O2 to generate peroxide species (*O2) for partial oxidation of CH3SH during the adsorption period and trigger O3 into surface atomic oxygen (*Oad), *O2, and superoxide radicals (·O2-) to accomplish a stable, high-efficiency, and deeper oxidation of CH3SH during the catalytic ozonation stage. Moreover, the results of XPS and DFT calculation imply the occurrence of Pt2+ → Pt4+ → Pt2+ recirculation on PtxC3 for AD-Pt-G to maintain the continuous catalytic ozonation for 12 h, i.e., Pt2+ species devote electrons in 5d-orbitals to activate O3, while Pt4+ species can be reduced back to Pt2+ via capturing electrons from CH3SH. This study can provide novel insights into the development of atomically dispersed Pt catalysts with a strong EMSI effect to realize excellent catalytic ozonation for air purification.
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Affiliation(s)
- Yajing Huang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Dingren Ma
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Weiqi Liu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Dehua Xia
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
| | - Lingling Hu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
| | - Jingling Yang
- School of Environment, Jinan University, Guangzhou 510632, China
| | - Peng Liao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, PR China
| | - Chun He
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China
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7
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Shen J, Elm J, Xie HB, Chen J, Niu J, Vehkamäki H. Structural Effects of Amines in Enhancing Methanesulfonic Acid-Driven New Particle Formation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:13498-13508. [PMID: 33091300 DOI: 10.1021/acs.est.0c05358] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Atmospheric amines can enhance methanesulfonic acid (MSA)-driven new particle formation (NPF), but the mechanism is fundamentally different compared to that of the extensively studied sulfuric acid (SA)-driven process. Generally, the enhancing potentials of amines in SA-driven NPF follow the basicity, while this is not the case for MSA-driven NPF, where structural effects dominate, making MSA-driven NPF more prominent for methylamine (MA) compared to dimethylamine (DMA). Therefore, probing structural factors determining the enhancing potentials of amines on MSA-driven NPF is key to fully understanding the contribution of MSA to NPF. Here, we performed a comparative study on DMA and MA enhancing MSA-driven NPF by examining cluster formation using computational methods. The results indicate that DMA-MSA clusters are more stable than the corresponding MA-MSA clusters for cluster sizes up to (DMA)2(MSA)2, indicating that the basicity of amines dominates the initial cluster formation. The methyl groups of DMA were found to present significant steric hindrance beyond the (DMA)2(MSA)2 cluster and this adds to the lower hydrogen bonding capacity of DMA, making the cluster growth less favorable compared to MA. This study implies that several amines could synergistically enhance MSA-driven NPF by maximizing the advantage of different amines in different amine-MSA cluster growth stages.
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Affiliation(s)
- Jiewen Shen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Jonas Elm
- Department of Chemistry and iClimate, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | - Hong-Bin Xie
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Junfeng Niu
- Research Center for Eco-environmental Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Hanna Vehkamäki
- Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, P.O. Box 64 Gustaf Hällströmin katu 2a, Helsinki FI-00014, Finland
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8
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Restoring the Reactivity of Organic Acid Solution Used for Silver Recovery from Solar Cells by Fractional Distillation. SUSTAINABILITY 2019. [DOI: 10.3390/su11133659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Methanesulfonic acid (MSA) is used to recover silver (Ag) from solar cells by adding an oxidizing agent. It is possible to regenerate by substituting of H+ for Ag+, and thus it can be reused for additional reactions. However, MSA is highly hygroscopic, and as an oxidizing agent can easily decompose in the acidic environment during Ag extraction, leading to dilution due to the formation of H2O. This H2O in the MSA solution hinders the Ag extraction. In this study, we present a fractional distillation process for restoring the reactivity of reused MSA solutions by reducing the H2O content. Our results showed that the reactivity of the separated MSA was restored and Ag could be recovered from the solar cell.
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9
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Zhao F, Feng YJ, Liu YR, Jiang S, Huang T, Wang ZH, Xu CX, Huang W. Enhancement of Atmospheric Nucleation by Highly Oxygenated Organic Molecules: A Density Functional Theory Study. J Phys Chem A 2019; 123:5367-5377. [PMID: 31199633 DOI: 10.1021/acs.jpca.9b03142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New particle formation (NPF) by gas-particle conversion is the main source of atmospheric aerosols. Highly oxygenated organic molecules (HOMs) and sulfuric acid (SA) are important NPF participants. 2-Methylglyceric acid (MGA), a kind of HOMs, is a tracer of isoprene-derived secondary organic aerosols. The nucleation mechanisms of MGA with SA were studied using density functional theory and atmospheric cluster dynamics simulation in this study, along with that of MGA with methanesulfonic acid (MSA) as a comparison. Our theoretical works indicate that the (MGA)(SA) and (MGA)(MSA) clusters are the most stable ones in the (MGA) i(SA) j ( i = 1-2, j = 1-2) and (MGA) i(MSA) j ( i = 1-2, j = 1-2) clusters, respectively. Both the formation rates of (MGA)(SA) and (MGA)(MSA) clusters are quite large and could have significant contributions to NPF. The results imply that the homomolecular nucleation of MGA is unlikely to occur in the atmosphere, and MGA and SA can effectively contribute to heteromolecular nucleation mainly in the form of heterodimers. MSA exhibits properties similar to SA in its ability to form clusters with MGA but is slightly weaker than SA.
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Affiliation(s)
- Feng Zhao
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics & Fine Mechanics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China.,School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Ya-Juan Feng
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Yi-Rong Liu
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Shuai Jiang
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Teng Huang
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics & Fine Mechanics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China
| | - Zi-Hang Wang
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Cai-Xin Xu
- School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China
| | - Wei Huang
- Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics & Fine Mechanics , Chinese Academy of Sciences , Hefei , Anhui 230031 , China.,School of Information Science and Technology , University of Science and Technology of China , Hefei , Anhui 230026 , China.,Center for Excellent in Urban Atmospheric Environment, Institute of Urban Environment , Chinese Academy of Sciences , Xiamen , Fujian 361021 , China
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10
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Li HY, Huang L, Wang XX, Lee CS, Yoon JW, Zhou J, Guo X, Lee JH. Molybdenum trioxide nanopaper as a dual gas sensor for detecting trimethylamine and hydrogen sulfide. RSC Adv 2017. [DOI: 10.1039/c6ra26280e] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The dual function of a free-standing, flexible, and semi-transparent MoO3 nanopaper sensor to detect TMA and H2S in a highly selective manner.
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Affiliation(s)
- Hua-Yao Li
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Liang Huang
- Wuhan National Laboratory for Optoelectronics
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Xiao-Xue Wang
- Laboratory of Solid State Ionics
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Chul-Soon Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Ji-Wook Yoon
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
| | - Jun Zhou
- Wuhan National Laboratory for Optoelectronics
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Xin Guo
- Laboratory of Solid State Ionics
- School of Materials Science and Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
- P. R. China
| | - Jong-Heun Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 02841
- Republic of Korea
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11
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Ge Y, Liu Y, Chu B, He H, Chen T, Wang S, Wei W, Cheng S. Ozonolysis of Trimethylamine Exchanged with Typical Ammonium Salts in the Particle Phase. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:11076-11084. [PMID: 27626464 DOI: 10.1021/acs.est.6b04375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Alkylamines contribute to both new particle formation and brown carbon. The toxicity of particle-phase amines is of great concern in the atmospheric chemistry community. Degradation of particulate amines may lead to secondary products in the particle phase, which are associated with changes in the adverse health impacts of aerosols. In this study, O3 oxidation of particulate trimethylamine (TMA) formed via heterogeneous uptake of TMA by (NH4)2SO4, NH4HSO4, NH4NO3 and NH4Cl, was investigated with in situ attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR) and proton transfer reaction mass spectrometry (PTR-MS). HCOOH, HCHO, CH3N═CH2, (CH3)2NCHO, CH3NO2, CH3N(OH)CHO, CH3NHOH and H2O were identified as products on all the substrates based upon IR (one-dimensional IR and two-dimensional correlation infrared spectroscopy), quantum chemical calculation and PTR-MS results. A reaction mechanism was proposed to explain the observed products. This work demonstrates that oxidation might be a degradation pathway of particulate amines in the atmosphere. This will aid in understanding the fate of particulate amines formed by nucleation and heterogeneous uptake and their potential health impacts during atmospheric aging.
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Affiliation(s)
- Yanli Ge
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, 100085, China
- University of Chinese Academy of Sciences , Beijing, 100049, China
| | - Yongchun Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, 100085, China
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
- University of Chinese Academy of Sciences , Beijing, 100049, China
| | - Biwu Chu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, 100085, China
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
- University of Chinese Academy of Sciences , Beijing, 100049, China
| | - Hong He
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, 100085, China
- Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences , Xiamen 361021, China
- University of Chinese Academy of Sciences , Beijing, 100049, China
| | - Tianzeng Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, 100085, China
- University of Chinese Academy of Sciences , Beijing, 100049, China
| | - Shaoxin Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing, 100085, China
| | - Wei Wei
- Key Laboratory of Beijing on Regional Air Pollution Control, Beijing University of Technology , Beijing 100022, China
| | - Shuiyuan Cheng
- Key Laboratory of Beijing on Regional Air Pollution Control, Beijing University of Technology , Beijing 100022, China
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12
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Zhu H, Huang G. Humidity independent mass spectrometry for gas phase chemical analysis via ambient proton transfer reaction. Anal Chim Acta 2015; 867:67-73. [PMID: 25813029 DOI: 10.1016/j.aca.2015.02.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 02/11/2015] [Accepted: 02/13/2015] [Indexed: 11/18/2022]
Abstract
In this work, a humidity independent mass spectrometric method was developed for rapid analysis of gas phase chemicals. This method is based upon ambient proton transfer reaction between gas phase chemicals and charged water droplets, in a reaction chamber with nearly saturate humidity under atmospheric pressure. The humidity independent nature enables direct and rapid analysis of raw gas phase samples, avoiding time- and sample-consuming sample pretreatments in conventional mass spectrometry methods to control sample humidity. Acetone, benzene, toluene, ethylbenzene and meta-xylene were used to evaluate the analytical performance of present method. The limits of detection for benzene, toluene, ethylbenzene and meta-xylene are in the range of ∼0.1 to ∼0.3 ppbV; that of benzene is well below the present European Union permissible exposure limit for benzene vapor (5 μg m(-3), ∼1.44 ppbV), with linear ranges of approximately two orders of magnitude. The majority of the homemade device contains a stainless steel tube as reaction chamber and an ultrasonic humidifier as the source of charged water droplets, which makes this cheap device easy to assemble and facile to operate. In addition, potential application of this method was illustrated by the real time identification of raw gas phase chemicals released from plants at different physiological stages.
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Affiliation(s)
- Hongying Zhu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Guangming Huang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China.
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