Influence of the organization of water-in-ionic liquid microemulsions on the size of silver particles during photoreduction
•Ag particles were synthesized by the photoreduction in water-in-ILs microemulsions.•The hydrophobicity of anions in ILs improved the stability of Ag particles.•The solubilized water molecules in the palisade layer stabilized large aggregates of Ag particles.•The growth of Ag particles was suppresse...
Gespeichert in:
| Veröffentlicht in: | Journal of colloid and interface science 2013-09, Vol.406, p.94-104 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 104 |
|---|---|
| container_issue | |
| container_start_page | 94 |
| container_title | Journal of colloid and interface science |
| container_volume | 406 |
| creator | Harada, Masafumi Yamada, Masako Kimura, Yoshifumi Saijo, Kenji |
| description | •Ag particles were synthesized by the photoreduction in water-in-ILs microemulsions.•The hydrophobicity of anions in ILs improved the stability of Ag particles.•The solubilized water molecules in the palisade layer stabilized large aggregates of Ag particles.•The growth of Ag particles was suppressed under high pressure of CO2.
Metal particles of silver (Ag) have been synthesized by the photoreduction of silver nitrate (AgNO3) in water-in-ionic liquid (IL) microemulsions consisting of nonionic surfactant Tween 20 or Triton X-100, water and ionic liquid, 1-octyl-3-methylimidazolium hexafluorophosphate ([OMIm][PF6]). The formation of microemulsions as well as Ag particles produced by the photoreduction has been investigated by UV–vis, cryo-TEM, small-angle X-ray scattering (SAXS), and extended X-ray absorption fine structure (EXAFS) measurements. At the early stage of Ag particle formation under ambient pressure, the size of Ag particles in water/[OMIm][PF6]/TX-100 microemulsions was slightly larger than that in water/[OMIm][PF6]/Tween20 microemulsions. With an increase in photoirradiation time beyond 30min, precipitation of larger Ag aggregates occurred. In contrast to the preparation under ambient pressure, the growth of Ag particles and aggregates was suppressed in preparing under high pressure (25MPa) of CO2, leading to no precipitation of Ag aggregates. The average diameters of the finally-obtained metallic Ag particles prepared under high pressure of CO2 in water/[OMIm][PF6]/Tween20 and water/[OMIm][PF6]/TX-100 microemulsions were estimated from cryo-TEM to be 3.7nm and 2.8nm, respectively. By using Guinier plots at q ( |
| doi_str_mv | 10.1016/j.jcis.2013.05.068 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1642257477</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0021979713005079</els_id><sourcerecordid>1400398554</sourcerecordid><originalsourceid>FETCH-LOGICAL-c752t-90f931340fdb5aed1cc9127a9e549aacb1b7fe983c2688f8d05a3015d7a636123</originalsourceid><addsrcrecordid>eNqNkk9v1DAQxS1ERZfCF-AAuVTqJWEcx3EscakqCpUqcYCeLa893nqVP1s7KaL98tjdpUfgNPLoN89v_EzIOwoVBdp-3FZb42NVA2UV8Ara7gVZUZC8FBTYS7ICqGkphRTH5HWMWwBKOZevyHHNhKQ1gxV5vBpdv-BosJhcMd-mEjZ69A969tOYez_1jKH0Y5nO3hS9v1u8LQZvwoTD0sfUjkVC82z0D0860ff3GIqdDrM3PcbCLsGPm2J3O81TQLuYrP6GHDndR3x7qCfk5vLzj4uv5fW3L1cX59elEbyeSwlOMsoacHbNNVpqTDIvtETeSK3Nmq6FQ9kxU7dd5zoLXDOg3ArdsjateULO9rq7MN0tGGc1-Giw7_WI0xIVbZu65qIR4t8oT0Y62XT_gTYATHacNwmt92h6sxgDOrULftDhl6KgcpRqq3KUKkepgKsUZRp6f9Bf1gPa55E_2SXg9ADoaHTvgh6zxjMnuORUZKEPe87pSelNSMzN93RTCwCiE5CJT3sCUwr3HoOKxuc_YX1AMys7-b85_Q3Us8cX</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1400398554</pqid></control><display><type>article</type><title>Influence of the organization of water-in-ionic liquid microemulsions on the size of silver particles during photoreduction</title><source>Access via ScienceDirect (Elsevier)</source><creator>Harada, Masafumi ; Yamada, Masako ; Kimura, Yoshifumi ; Saijo, Kenji</creator><creatorcontrib>Harada, Masafumi ; Yamada, Masako ; Kimura, Yoshifumi ; Saijo, Kenji</creatorcontrib><description>•Ag particles were synthesized by the photoreduction in water-in-ILs microemulsions.•The hydrophobicity of anions in ILs improved the stability of Ag particles.•The solubilized water molecules in the palisade layer stabilized large aggregates of Ag particles.•The growth of Ag particles was suppressed under high pressure of CO2.
Metal particles of silver (Ag) have been synthesized by the photoreduction of silver nitrate (AgNO3) in water-in-ionic liquid (IL) microemulsions consisting of nonionic surfactant Tween 20 or Triton X-100, water and ionic liquid, 1-octyl-3-methylimidazolium hexafluorophosphate ([OMIm][PF6]). The formation of microemulsions as well as Ag particles produced by the photoreduction has been investigated by UV–vis, cryo-TEM, small-angle X-ray scattering (SAXS), and extended X-ray absorption fine structure (EXAFS) measurements. At the early stage of Ag particle formation under ambient pressure, the size of Ag particles in water/[OMIm][PF6]/TX-100 microemulsions was slightly larger than that in water/[OMIm][PF6]/Tween20 microemulsions. With an increase in photoirradiation time beyond 30min, precipitation of larger Ag aggregates occurred. In contrast to the preparation under ambient pressure, the growth of Ag particles and aggregates was suppressed in preparing under high pressure (25MPa) of CO2, leading to no precipitation of Ag aggregates. The average diameters of the finally-obtained metallic Ag particles prepared under high pressure of CO2 in water/[OMIm][PF6]/Tween20 and water/[OMIm][PF6]/TX-100 microemulsions were estimated from cryo-TEM to be 3.7nm and 2.8nm, respectively. By using Guinier plots at q (<0.16nm−1), it was demonstrated that the diameter of the water droplets during Ag particle formation under high pressure of CO2 remained unchanged in the range of 33–37nm due to their higher stability compared to water droplets, whereas under ambient pressure the diameter drastically increases from 28nm to 40nm during the first 60min of photoirradiation, resulting in the precipitation of larger Ag aggregates, especially in the case of water/[OMIm][PF6]/Tween20 microemulsions.</description><identifier>ISSN: 0021-9797</identifier><identifier>EISSN: 1095-7103</identifier><identifier>DOI: 10.1016/j.jcis.2013.05.068</identifier><identifier>PMID: 23791230</identifier><identifier>CODEN: JCISA5</identifier><language>eng</language><publisher>Amsterdam: Elsevier Inc</publisher><subject>absorption ; Aggregates ; Carbon dioxide ; Chemistry ; Colloidal state and disperse state ; Cryo-TEM ; Droplets ; Emulsions. Microemulsions. Foams ; Exact sciences and technology ; EXAFS ; General and physical chemistry ; Ionic liquids ; Microemulsions ; nonionic surfactants ; octoxynol ; Photochemistry ; Photoreduction ; polysorbates ; Precipitation ; Pressure ; SAXS ; Silver ; silver nitrate ; Silver particles ; Supercritical carbon dioxide ; Water-in-ionic liquid microemulsions ; X-radiation</subject><ispartof>Journal of colloid and interface science, 2013-09, Vol.406, p.94-104</ispartof><rights>2013 Elsevier Inc.</rights><rights>2014 INIST-CNRS</rights><rights>Copyright © 2013 Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c752t-90f931340fdb5aed1cc9127a9e549aacb1b7fe983c2688f8d05a3015d7a636123</citedby><cites>FETCH-LOGICAL-c752t-90f931340fdb5aed1cc9127a9e549aacb1b7fe983c2688f8d05a3015d7a636123</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jcis.2013.05.068$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27595178$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23791230$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Harada, Masafumi</creatorcontrib><creatorcontrib>Yamada, Masako</creatorcontrib><creatorcontrib>Kimura, Yoshifumi</creatorcontrib><creatorcontrib>Saijo, Kenji</creatorcontrib><title>Influence of the organization of water-in-ionic liquid microemulsions on the size of silver particles during photoreduction</title><title>Journal of colloid and interface science</title><addtitle>J Colloid Interface Sci</addtitle><description>•Ag particles were synthesized by the photoreduction in water-in-ILs microemulsions.•The hydrophobicity of anions in ILs improved the stability of Ag particles.•The solubilized water molecules in the palisade layer stabilized large aggregates of Ag particles.•The growth of Ag particles was suppressed under high pressure of CO2.
Metal particles of silver (Ag) have been synthesized by the photoreduction of silver nitrate (AgNO3) in water-in-ionic liquid (IL) microemulsions consisting of nonionic surfactant Tween 20 or Triton X-100, water and ionic liquid, 1-octyl-3-methylimidazolium hexafluorophosphate ([OMIm][PF6]). The formation of microemulsions as well as Ag particles produced by the photoreduction has been investigated by UV–vis, cryo-TEM, small-angle X-ray scattering (SAXS), and extended X-ray absorption fine structure (EXAFS) measurements. At the early stage of Ag particle formation under ambient pressure, the size of Ag particles in water/[OMIm][PF6]/TX-100 microemulsions was slightly larger than that in water/[OMIm][PF6]/Tween20 microemulsions. With an increase in photoirradiation time beyond 30min, precipitation of larger Ag aggregates occurred. In contrast to the preparation under ambient pressure, the growth of Ag particles and aggregates was suppressed in preparing under high pressure (25MPa) of CO2, leading to no precipitation of Ag aggregates. The average diameters of the finally-obtained metallic Ag particles prepared under high pressure of CO2 in water/[OMIm][PF6]/Tween20 and water/[OMIm][PF6]/TX-100 microemulsions were estimated from cryo-TEM to be 3.7nm and 2.8nm, respectively. By using Guinier plots at q (<0.16nm−1), it was demonstrated that the diameter of the water droplets during Ag particle formation under high pressure of CO2 remained unchanged in the range of 33–37nm due to their higher stability compared to water droplets, whereas under ambient pressure the diameter drastically increases from 28nm to 40nm during the first 60min of photoirradiation, resulting in the precipitation of larger Ag aggregates, especially in the case of water/[OMIm][PF6]/Tween20 microemulsions.</description><subject>absorption</subject><subject>Aggregates</subject><subject>Carbon dioxide</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Cryo-TEM</subject><subject>Droplets</subject><subject>Emulsions. Microemulsions. Foams</subject><subject>Exact sciences and technology</subject><subject>EXAFS</subject><subject>General and physical chemistry</subject><subject>Ionic liquids</subject><subject>Microemulsions</subject><subject>nonionic surfactants</subject><subject>octoxynol</subject><subject>Photochemistry</subject><subject>Photoreduction</subject><subject>polysorbates</subject><subject>Precipitation</subject><subject>Pressure</subject><subject>SAXS</subject><subject>Silver</subject><subject>silver nitrate</subject><subject>Silver particles</subject><subject>Supercritical carbon dioxide</subject><subject>Water-in-ionic liquid microemulsions</subject><subject>X-radiation</subject><issn>0021-9797</issn><issn>1095-7103</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNqNkk9v1DAQxS1ERZfCF-AAuVTqJWEcx3EscakqCpUqcYCeLa893nqVP1s7KaL98tjdpUfgNPLoN89v_EzIOwoVBdp-3FZb42NVA2UV8Ara7gVZUZC8FBTYS7ICqGkphRTH5HWMWwBKOZevyHHNhKQ1gxV5vBpdv-BosJhcMd-mEjZ69A969tOYez_1jKH0Y5nO3hS9v1u8LQZvwoTD0sfUjkVC82z0D0860ff3GIqdDrM3PcbCLsGPm2J3O81TQLuYrP6GHDndR3x7qCfk5vLzj4uv5fW3L1cX59elEbyeSwlOMsoacHbNNVpqTDIvtETeSK3Nmq6FQ9kxU7dd5zoLXDOg3ArdsjateULO9rq7MN0tGGc1-Giw7_WI0xIVbZu65qIR4t8oT0Y62XT_gTYATHacNwmt92h6sxgDOrULftDhl6KgcpRqq3KUKkepgKsUZRp6f9Bf1gPa55E_2SXg9ADoaHTvgh6zxjMnuORUZKEPe87pSelNSMzN93RTCwCiE5CJT3sCUwr3HoOKxuc_YX1AMys7-b85_Q3Us8cX</recordid><startdate>20130915</startdate><enddate>20130915</enddate><creator>Harada, Masafumi</creator><creator>Yamada, Masako</creator><creator>Kimura, Yoshifumi</creator><creator>Saijo, Kenji</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20130915</creationdate><title>Influence of the organization of water-in-ionic liquid microemulsions on the size of silver particles during photoreduction</title><author>Harada, Masafumi ; Yamada, Masako ; Kimura, Yoshifumi ; Saijo, Kenji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c752t-90f931340fdb5aed1cc9127a9e549aacb1b7fe983c2688f8d05a3015d7a636123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>absorption</topic><topic>Aggregates</topic><topic>Carbon dioxide</topic><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Cryo-TEM</topic><topic>Droplets</topic><topic>Emulsions. Microemulsions. Foams</topic><topic>Exact sciences and technology</topic><topic>EXAFS</topic><topic>General and physical chemistry</topic><topic>Ionic liquids</topic><topic>Microemulsions</topic><topic>nonionic surfactants</topic><topic>octoxynol</topic><topic>Photochemistry</topic><topic>Photoreduction</topic><topic>polysorbates</topic><topic>Precipitation</topic><topic>Pressure</topic><topic>SAXS</topic><topic>Silver</topic><topic>silver nitrate</topic><topic>Silver particles</topic><topic>Supercritical carbon dioxide</topic><topic>Water-in-ionic liquid microemulsions</topic><topic>X-radiation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Harada, Masafumi</creatorcontrib><creatorcontrib>Yamada, Masako</creatorcontrib><creatorcontrib>Kimura, Yoshifumi</creatorcontrib><creatorcontrib>Saijo, Kenji</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of colloid and interface science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Harada, Masafumi</au><au>Yamada, Masako</au><au>Kimura, Yoshifumi</au><au>Saijo, Kenji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of the organization of water-in-ionic liquid microemulsions on the size of silver particles during photoreduction</atitle><jtitle>Journal of colloid and interface science</jtitle><addtitle>J Colloid Interface Sci</addtitle><date>2013-09-15</date><risdate>2013</risdate><volume>406</volume><spage>94</spage><epage>104</epage><pages>94-104</pages><issn>0021-9797</issn><eissn>1095-7103</eissn><coden>JCISA5</coden><abstract>•Ag particles were synthesized by the photoreduction in water-in-ILs microemulsions.•The hydrophobicity of anions in ILs improved the stability of Ag particles.•The solubilized water molecules in the palisade layer stabilized large aggregates of Ag particles.•The growth of Ag particles was suppressed under high pressure of CO2.
Metal particles of silver (Ag) have been synthesized by the photoreduction of silver nitrate (AgNO3) in water-in-ionic liquid (IL) microemulsions consisting of nonionic surfactant Tween 20 or Triton X-100, water and ionic liquid, 1-octyl-3-methylimidazolium hexafluorophosphate ([OMIm][PF6]). The formation of microemulsions as well as Ag particles produced by the photoreduction has been investigated by UV–vis, cryo-TEM, small-angle X-ray scattering (SAXS), and extended X-ray absorption fine structure (EXAFS) measurements. At the early stage of Ag particle formation under ambient pressure, the size of Ag particles in water/[OMIm][PF6]/TX-100 microemulsions was slightly larger than that in water/[OMIm][PF6]/Tween20 microemulsions. With an increase in photoirradiation time beyond 30min, precipitation of larger Ag aggregates occurred. In contrast to the preparation under ambient pressure, the growth of Ag particles and aggregates was suppressed in preparing under high pressure (25MPa) of CO2, leading to no precipitation of Ag aggregates. The average diameters of the finally-obtained metallic Ag particles prepared under high pressure of CO2 in water/[OMIm][PF6]/Tween20 and water/[OMIm][PF6]/TX-100 microemulsions were estimated from cryo-TEM to be 3.7nm and 2.8nm, respectively. By using Guinier plots at q (<0.16nm−1), it was demonstrated that the diameter of the water droplets during Ag particle formation under high pressure of CO2 remained unchanged in the range of 33–37nm due to their higher stability compared to water droplets, whereas under ambient pressure the diameter drastically increases from 28nm to 40nm during the first 60min of photoirradiation, resulting in the precipitation of larger Ag aggregates, especially in the case of water/[OMIm][PF6]/Tween20 microemulsions.</abstract><cop>Amsterdam</cop><pub>Elsevier Inc</pub><pmid>23791230</pmid><doi>10.1016/j.jcis.2013.05.068</doi><tpages>11</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-9797 |
| ispartof | Journal of colloid and interface science, 2013-09, Vol.406, p.94-104 |
| issn | 0021-9797 1095-7103 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1642257477 |
| source | Access via ScienceDirect (Elsevier) |
| subjects | absorption Aggregates Carbon dioxide Chemistry Colloidal state and disperse state Cryo-TEM Droplets Emulsions. Microemulsions. Foams Exact sciences and technology EXAFS General and physical chemistry Ionic liquids Microemulsions nonionic surfactants octoxynol Photochemistry Photoreduction polysorbates Precipitation Pressure SAXS Silver silver nitrate Silver particles Supercritical carbon dioxide Water-in-ionic liquid microemulsions X-radiation |
| title | Influence of the organization of water-in-ionic liquid microemulsions on the size of silver particles during photoreduction |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-22T02%3A25%3A39IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Influence%20of%20the%20organization%20of%20water-in-ionic%20liquid%20microemulsions%20on%20the%20size%20of%20silver%20particles%20during%20photoreduction&rft.jtitle=Journal%20of%20colloid%20and%20interface%20science&rft.au=Harada,%20Masafumi&rft.date=2013-09-15&rft.volume=406&rft.spage=94&rft.epage=104&rft.pages=94-104&rft.issn=0021-9797&rft.eissn=1095-7103&rft.coden=JCISA5&rft_id=info:doi/10.1016/j.jcis.2013.05.068&rft_dat=%3Cproquest_cross%3E1400398554%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1400398554&rft_id=info:pmid/23791230&rft_els_id=S0021979713005079&rfr_iscdi=true |