Preparation, Characterization, and Scattering Characteristics of Mixed Aerosol of Fly Ash and Ammonium Sulfate
The mixed aerosols formed by fly ash and ammonium sulfate have a vital impact on the scattering characteristics of the atmosphere. This paper proposes to investigate the scattering characteristics of an individual optically levitated mixed aerosol of fly ash and ammonium sulfate using a coupled lase...
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| Veröffentlicht in: | Processes 2024-04, Vol.12 (4), p.769 |
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| creator | Li, Jiaxin Li, Shengji Zhang, Minqi Wang, Zhangtao Shu, Yanbokang Liu, Jie Huang, Xuefeng |
| description | The mixed aerosols formed by fly ash and ammonium sulfate have a vital impact on the scattering characteristics of the atmosphere. This paper proposes to investigate the scattering characteristics of an individual optically levitated mixed aerosol of fly ash and ammonium sulfate using a coupled laser levitation and scattering measuring apparatus. The mixed aerosols were first prepared and characterized by multiple techniques. The results demonstrated that mixed aerosol particles completely encapsulated ammonium sulfate crystals on the rough porous surface of fly ash, resembling the “core-shell” structure. Moreover, the surface formed columnar ammonium sulfate crystals that exhibit the highest regularity when the solid mass concentration of fly ash was 1000 mg/L. The scattering intensity of mixed aerosols was measured, and the comparisons among fly ash aerosol and mixed aerosols were made to evaluate the effect of fly ash concentration on scattering. The measurements demonstrated that the mixed aerosols exhibited a lower overall scattering intensity compared to fly ash alone. The higher regularity of ammonium sulfate crystals formed on the surface of mixed aerosols at different solid mass concentrations of fly ash corresponds to higher scattering intensity. These findings will be helpful for recognizing the scattering characteristics of real atmospheric aerosols in depth. |
| doi_str_mv | 10.3390/pr12040769 |
| format | Article |
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This paper proposes to investigate the scattering characteristics of an individual optically levitated mixed aerosol of fly ash and ammonium sulfate using a coupled laser levitation and scattering measuring apparatus. The mixed aerosols were first prepared and characterized by multiple techniques. The results demonstrated that mixed aerosol particles completely encapsulated ammonium sulfate crystals on the rough porous surface of fly ash, resembling the “core-shell” structure. Moreover, the surface formed columnar ammonium sulfate crystals that exhibit the highest regularity when the solid mass concentration of fly ash was 1000 mg/L. The scattering intensity of mixed aerosols was measured, and the comparisons among fly ash aerosol and mixed aerosols were made to evaluate the effect of fly ash concentration on scattering. The measurements demonstrated that the mixed aerosols exhibited a lower overall scattering intensity compared to fly ash alone. The higher regularity of ammonium sulfate crystals formed on the surface of mixed aerosols at different solid mass concentrations of fly ash corresponds to higher scattering intensity. These findings will be helpful for recognizing the scattering characteristics of real atmospheric aerosols in depth.</description><identifier>ISSN: 2227-9717</identifier><identifier>EISSN: 2227-9717</identifier><identifier>DOI: 10.3390/pr12040769</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Aerosols ; Ammonium sulfate ; Ammonium sulphate ; Atmospheric physics ; Coal-fired power plants ; Columnar structure ; Crystals ; Electron microscopes ; Fly ash ; Lasers ; Levitation ; Measuring instruments ; Molecular weight ; Morphology ; Optical properties ; Regularity ; Research methodology ; Scanning electron microscopy ; Scattering ; Spectrum analysis</subject><ispartof>Processes, 2024-04, Vol.12 (4), p.769</ispartof><rights>COPYRIGHT 2024 MDPI AG</rights><rights>2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c293t-2c720a2bbf849d656f59461795aa4afdc0e13c7841d0f96a067ce115fb980e093</cites><orcidid>0000-0002-6511-3538 ; 0000-0002-2687-9805</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Li, Jiaxin</creatorcontrib><creatorcontrib>Li, Shengji</creatorcontrib><creatorcontrib>Zhang, Minqi</creatorcontrib><creatorcontrib>Wang, Zhangtao</creatorcontrib><creatorcontrib>Shu, Yanbokang</creatorcontrib><creatorcontrib>Liu, Jie</creatorcontrib><creatorcontrib>Huang, Xuefeng</creatorcontrib><title>Preparation, Characterization, and Scattering Characteristics of Mixed Aerosol of Fly Ash and Ammonium Sulfate</title><title>Processes</title><description>The mixed aerosols formed by fly ash and ammonium sulfate have a vital impact on the scattering characteristics of the atmosphere. This paper proposes to investigate the scattering characteristics of an individual optically levitated mixed aerosol of fly ash and ammonium sulfate using a coupled laser levitation and scattering measuring apparatus. The mixed aerosols were first prepared and characterized by multiple techniques. The results demonstrated that mixed aerosol particles completely encapsulated ammonium sulfate crystals on the rough porous surface of fly ash, resembling the “core-shell” structure. Moreover, the surface formed columnar ammonium sulfate crystals that exhibit the highest regularity when the solid mass concentration of fly ash was 1000 mg/L. The scattering intensity of mixed aerosols was measured, and the comparisons among fly ash aerosol and mixed aerosols were made to evaluate the effect of fly ash concentration on scattering. The measurements demonstrated that the mixed aerosols exhibited a lower overall scattering intensity compared to fly ash alone. The higher regularity of ammonium sulfate crystals formed on the surface of mixed aerosols at different solid mass concentrations of fly ash corresponds to higher scattering intensity. 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Li, Shengji ; Zhang, Minqi ; Wang, Zhangtao ; Shu, Yanbokang ; Liu, Jie ; Huang, Xuefeng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c293t-2c720a2bbf849d656f59461795aa4afdc0e13c7841d0f96a067ce115fb980e093</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Aerosols</topic><topic>Ammonium sulfate</topic><topic>Ammonium sulphate</topic><topic>Atmospheric physics</topic><topic>Coal-fired power plants</topic><topic>Columnar structure</topic><topic>Crystals</topic><topic>Electron microscopes</topic><topic>Fly ash</topic><topic>Lasers</topic><topic>Levitation</topic><topic>Measuring instruments</topic><topic>Molecular weight</topic><topic>Morphology</topic><topic>Optical properties</topic><topic>Regularity</topic><topic>Research methodology</topic><topic>Scanning electron microscopy</topic><topic>Scattering</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Jiaxin</creatorcontrib><creatorcontrib>Li, Shengji</creatorcontrib><creatorcontrib>Zhang, Minqi</creatorcontrib><creatorcontrib>Wang, Zhangtao</creatorcontrib><creatorcontrib>Shu, Yanbokang</creatorcontrib><creatorcontrib>Liu, Jie</creatorcontrib><creatorcontrib>Huang, Xuefeng</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>ProQuest Biological Science Collection</collection><collection>Biological Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Processes</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Jiaxin</au><au>Li, Shengji</au><au>Zhang, Minqi</au><au>Wang, Zhangtao</au><au>Shu, Yanbokang</au><au>Liu, Jie</au><au>Huang, Xuefeng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation, Characterization, and Scattering Characteristics of Mixed Aerosol of Fly Ash and Ammonium Sulfate</atitle><jtitle>Processes</jtitle><date>2024-04-01</date><risdate>2024</risdate><volume>12</volume><issue>4</issue><spage>769</spage><pages>769-</pages><issn>2227-9717</issn><eissn>2227-9717</eissn><abstract>The mixed aerosols formed by fly ash and ammonium sulfate have a vital impact on the scattering characteristics of the atmosphere. This paper proposes to investigate the scattering characteristics of an individual optically levitated mixed aerosol of fly ash and ammonium sulfate using a coupled laser levitation and scattering measuring apparatus. The mixed aerosols were first prepared and characterized by multiple techniques. The results demonstrated that mixed aerosol particles completely encapsulated ammonium sulfate crystals on the rough porous surface of fly ash, resembling the “core-shell” structure. Moreover, the surface formed columnar ammonium sulfate crystals that exhibit the highest regularity when the solid mass concentration of fly ash was 1000 mg/L. The scattering intensity of mixed aerosols was measured, and the comparisons among fly ash aerosol and mixed aerosols were made to evaluate the effect of fly ash concentration on scattering. The measurements demonstrated that the mixed aerosols exhibited a lower overall scattering intensity compared to fly ash alone. The higher regularity of ammonium sulfate crystals formed on the surface of mixed aerosols at different solid mass concentrations of fly ash corresponds to higher scattering intensity. These findings will be helpful for recognizing the scattering characteristics of real atmospheric aerosols in depth.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/pr12040769</doi><orcidid>https://orcid.org/0000-0002-6511-3538</orcidid><orcidid>https://orcid.org/0000-0002-2687-9805</orcidid><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; MDPI - Multidisciplinary Digital Publishing Institute |
| subjects | Aerosols Ammonium sulfate Ammonium sulphate Atmospheric physics Coal-fired power plants Columnar structure Crystals Electron microscopes Fly ash Lasers Levitation Measuring instruments Molecular weight Morphology Optical properties Regularity Research methodology Scanning electron microscopy Scattering Spectrum analysis |
| title | Preparation, Characterization, and Scattering Characteristics of Mixed Aerosol of Fly Ash and Ammonium Sulfate |
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