Synthesis of Spherical TiO2 Particles with Disordered Rutile Surface for Photocatalytic Hydrogen Production
One of the most important issues in photocatalysis research has been the development of TiO2-based photocatalysts that work efficiently under visible light conditions. Here, we report the monodispersed, spherical TiO2 particles with disordered rutile surface for use as visible-light photocatalysts....
Gespeichert in:
Veröffentlicht in: | Catalysts 2019-06, Vol.9 (6), p.491 |
---|---|
Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | |
---|---|
container_issue | 6 |
container_start_page | 491 |
container_title | Catalysts |
container_volume | 9 |
creator | Kim, Na Yeon Lee, Hyeon Kyeong Moon, Jong Tae Joo, Ji Bong |
description | One of the most important issues in photocatalysis research has been the development of TiO2-based photocatalysts that work efficiently under visible light conditions. Here, we report the monodispersed, spherical TiO2 particles with disordered rutile surface for use as visible-light photocatalysts. The spherical TiO2 particles with disordered surface were synthesized by sol-gel synthesis, followed by sequential calcination, and chemical reduction process using Li/Ethylenediamine (Li/EDA) solution. Variation of the calcination temperature allowed the crystalline properties of the calcined TiO2 samples, such as the ratio of anatase and rutile, to be finely controlled. The content ratios of anatase phase to rutile phase leads to different degrees of disorder of the rutile surface, which is closely related to the photocatalysis activity. Chemical reduction using the Li/EDA solution enables selective reduction of the rutile surface of the calcined TiO2, resulting in enhanced light absorption. As a result, we were able to synthesize spherical TiO2 photocatalysts having a disordered rutile surface in a mixed crystalline phase, which is beneficial during photocatalysis in terms of light absorption and charge separation. When used as photocatalysts for hydrogen production under solar light conditions, the chemically-reduced TiO2 particles with both the disordered rutile surface and mixed crystalline phase showed significantly enhanced catalytic activity. |
doi_str_mv | 10.3390/catal9060491 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2547548428</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2547548428</sourcerecordid><originalsourceid>FETCH-LOGICAL-c301t-f3a790ba1065b8776f7ed9e79f8d7173bb488f7b2cfa3bd8fa1b11c4f297632f3</originalsourceid><addsrcrecordid>eNpNkM1OwzAQhC0EElXpjQewxJWA_xLbR1SgRarUipZz5Dg2cQlxsR2hvD2Bcuhcdg6zu6MPgGuM7iiV6F6rpFqJCsQkPgMTgjjNGGXs_MRfglmMezRKYipwPgEf26FLjYkuQm_h9tCY4LRq4c6tCdyokJxuTYTfLjXw0UUfahNMDV_75FoDt32wShtofYCbxif_V2IYl-ByqIN_Nx3cBF_3OjnfXYELq9poZv9zCt6en3bzZbZaL17mD6tMU4RTZqniElUKoyKvBOeF5aaWhksrao45rSomhOUV0VbRqhZW4QpjzSyRvKDE0im4Od49BP_Vm5jKve9DN74sSc54zgQjYkzdHlM6-BiDseUhuE8VhhKj8pdoeUqU_gCCcmsI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2547548428</pqid></control><display><type>article</type><title>Synthesis of Spherical TiO2 Particles with Disordered Rutile Surface for Photocatalytic Hydrogen Production</title><source>MDPI - Multidisciplinary Digital Publishing Institute</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>Kim, Na Yeon ; Lee, Hyeon Kyeong ; Moon, Jong Tae ; Joo, Ji Bong</creator><creatorcontrib>Kim, Na Yeon ; Lee, Hyeon Kyeong ; Moon, Jong Tae ; Joo, Ji Bong</creatorcontrib><description>One of the most important issues in photocatalysis research has been the development of TiO2-based photocatalysts that work efficiently under visible light conditions. Here, we report the monodispersed, spherical TiO2 particles with disordered rutile surface for use as visible-light photocatalysts. The spherical TiO2 particles with disordered surface were synthesized by sol-gel synthesis, followed by sequential calcination, and chemical reduction process using Li/Ethylenediamine (Li/EDA) solution. Variation of the calcination temperature allowed the crystalline properties of the calcined TiO2 samples, such as the ratio of anatase and rutile, to be finely controlled. The content ratios of anatase phase to rutile phase leads to different degrees of disorder of the rutile surface, which is closely related to the photocatalysis activity. Chemical reduction using the Li/EDA solution enables selective reduction of the rutile surface of the calcined TiO2, resulting in enhanced light absorption. As a result, we were able to synthesize spherical TiO2 photocatalysts having a disordered rutile surface in a mixed crystalline phase, which is beneficial during photocatalysis in terms of light absorption and charge separation. When used as photocatalysts for hydrogen production under solar light conditions, the chemically-reduced TiO2 particles with both the disordered rutile surface and mixed crystalline phase showed significantly enhanced catalytic activity.</description><identifier>ISSN: 2073-4344</identifier><identifier>EISSN: 2073-4344</identifier><identifier>DOI: 10.3390/catal9060491</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Anatase ; Catalysts ; Catalytic activity ; Chemical activity ; Chemical reactions ; Chemical reduction ; Chemical synthesis ; Climate change ; Crystal structure ; Crystallinity ; Electromagnetic absorption ; Ethylenediamine ; Hydrogen ; Hydrogen production ; Light ; Morphology ; Nanocrystals ; Nanoparticles ; Optical properties ; Photocatalysis ; Photocatalysts ; Roasting ; Rutile ; Sol-gel processes ; Solar energy ; Surface chemistry ; Surfactants ; Titanium ; Titanium dioxide</subject><ispartof>Catalysts, 2019-06, Vol.9 (6), p.491</ispartof><rights>2019 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 (http://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><citedby>FETCH-LOGICAL-c301t-f3a790ba1065b8776f7ed9e79f8d7173bb488f7b2cfa3bd8fa1b11c4f297632f3</citedby><cites>FETCH-LOGICAL-c301t-f3a790ba1065b8776f7ed9e79f8d7173bb488f7b2cfa3bd8fa1b11c4f297632f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Kim, Na Yeon</creatorcontrib><creatorcontrib>Lee, Hyeon Kyeong</creatorcontrib><creatorcontrib>Moon, Jong Tae</creatorcontrib><creatorcontrib>Joo, Ji Bong</creatorcontrib><title>Synthesis of Spherical TiO2 Particles with Disordered Rutile Surface for Photocatalytic Hydrogen Production</title><title>Catalysts</title><description>One of the most important issues in photocatalysis research has been the development of TiO2-based photocatalysts that work efficiently under visible light conditions. Here, we report the monodispersed, spherical TiO2 particles with disordered rutile surface for use as visible-light photocatalysts. The spherical TiO2 particles with disordered surface were synthesized by sol-gel synthesis, followed by sequential calcination, and chemical reduction process using Li/Ethylenediamine (Li/EDA) solution. Variation of the calcination temperature allowed the crystalline properties of the calcined TiO2 samples, such as the ratio of anatase and rutile, to be finely controlled. The content ratios of anatase phase to rutile phase leads to different degrees of disorder of the rutile surface, which is closely related to the photocatalysis activity. Chemical reduction using the Li/EDA solution enables selective reduction of the rutile surface of the calcined TiO2, resulting in enhanced light absorption. As a result, we were able to synthesize spherical TiO2 photocatalysts having a disordered rutile surface in a mixed crystalline phase, which is beneficial during photocatalysis in terms of light absorption and charge separation. When used as photocatalysts for hydrogen production under solar light conditions, the chemically-reduced TiO2 particles with both the disordered rutile surface and mixed crystalline phase showed significantly enhanced catalytic activity.</description><subject>Anatase</subject><subject>Catalysts</subject><subject>Catalytic activity</subject><subject>Chemical activity</subject><subject>Chemical reactions</subject><subject>Chemical reduction</subject><subject>Chemical synthesis</subject><subject>Climate change</subject><subject>Crystal structure</subject><subject>Crystallinity</subject><subject>Electromagnetic absorption</subject><subject>Ethylenediamine</subject><subject>Hydrogen</subject><subject>Hydrogen production</subject><subject>Light</subject><subject>Morphology</subject><subject>Nanocrystals</subject><subject>Nanoparticles</subject><subject>Optical properties</subject><subject>Photocatalysis</subject><subject>Photocatalysts</subject><subject>Roasting</subject><subject>Rutile</subject><subject>Sol-gel processes</subject><subject>Solar energy</subject><subject>Surface chemistry</subject><subject>Surfactants</subject><subject>Titanium</subject><subject>Titanium dioxide</subject><issn>2073-4344</issn><issn>2073-4344</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpNkM1OwzAQhC0EElXpjQewxJWA_xLbR1SgRarUipZz5Dg2cQlxsR2hvD2Bcuhcdg6zu6MPgGuM7iiV6F6rpFqJCsQkPgMTgjjNGGXs_MRfglmMezRKYipwPgEf26FLjYkuQm_h9tCY4LRq4c6tCdyokJxuTYTfLjXw0UUfahNMDV_75FoDt32wShtofYCbxif_V2IYl-ByqIN_Nx3cBF_3OjnfXYELq9poZv9zCt6en3bzZbZaL17mD6tMU4RTZqniElUKoyKvBOeF5aaWhksrao45rSomhOUV0VbRqhZW4QpjzSyRvKDE0im4Od49BP_Vm5jKve9DN74sSc54zgQjYkzdHlM6-BiDseUhuE8VhhKj8pdoeUqU_gCCcmsI</recordid><startdate>20190601</startdate><enddate>20190601</enddate><creator>Kim, Na Yeon</creator><creator>Lee, Hyeon Kyeong</creator><creator>Moon, Jong Tae</creator><creator>Joo, Ji Bong</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20190601</creationdate><title>Synthesis of Spherical TiO2 Particles with Disordered Rutile Surface for Photocatalytic Hydrogen Production</title><author>Kim, Na Yeon ; Lee, Hyeon Kyeong ; Moon, Jong Tae ; Joo, Ji Bong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c301t-f3a790ba1065b8776f7ed9e79f8d7173bb488f7b2cfa3bd8fa1b11c4f297632f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Anatase</topic><topic>Catalysts</topic><topic>Catalytic activity</topic><topic>Chemical activity</topic><topic>Chemical reactions</topic><topic>Chemical reduction</topic><topic>Chemical synthesis</topic><topic>Climate change</topic><topic>Crystal structure</topic><topic>Crystallinity</topic><topic>Electromagnetic absorption</topic><topic>Ethylenediamine</topic><topic>Hydrogen</topic><topic>Hydrogen production</topic><topic>Light</topic><topic>Morphology</topic><topic>Nanocrystals</topic><topic>Nanoparticles</topic><topic>Optical properties</topic><topic>Photocatalysis</topic><topic>Photocatalysts</topic><topic>Roasting</topic><topic>Rutile</topic><topic>Sol-gel processes</topic><topic>Solar energy</topic><topic>Surface chemistry</topic><topic>Surfactants</topic><topic>Titanium</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Na Yeon</creatorcontrib><creatorcontrib>Lee, Hyeon Kyeong</creatorcontrib><creatorcontrib>Moon, Jong Tae</creatorcontrib><creatorcontrib>Joo, Ji Bong</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology 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>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials 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>Catalysts</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Na Yeon</au><au>Lee, Hyeon Kyeong</au><au>Moon, Jong Tae</au><au>Joo, Ji Bong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of Spherical TiO2 Particles with Disordered Rutile Surface for Photocatalytic Hydrogen Production</atitle><jtitle>Catalysts</jtitle><date>2019-06-01</date><risdate>2019</risdate><volume>9</volume><issue>6</issue><spage>491</spage><pages>491-</pages><issn>2073-4344</issn><eissn>2073-4344</eissn><abstract>One of the most important issues in photocatalysis research has been the development of TiO2-based photocatalysts that work efficiently under visible light conditions. Here, we report the monodispersed, spherical TiO2 particles with disordered rutile surface for use as visible-light photocatalysts. The spherical TiO2 particles with disordered surface were synthesized by sol-gel synthesis, followed by sequential calcination, and chemical reduction process using Li/Ethylenediamine (Li/EDA) solution. Variation of the calcination temperature allowed the crystalline properties of the calcined TiO2 samples, such as the ratio of anatase and rutile, to be finely controlled. The content ratios of anatase phase to rutile phase leads to different degrees of disorder of the rutile surface, which is closely related to the photocatalysis activity. Chemical reduction using the Li/EDA solution enables selective reduction of the rutile surface of the calcined TiO2, resulting in enhanced light absorption. As a result, we were able to synthesize spherical TiO2 photocatalysts having a disordered rutile surface in a mixed crystalline phase, which is beneficial during photocatalysis in terms of light absorption and charge separation. When used as photocatalysts for hydrogen production under solar light conditions, the chemically-reduced TiO2 particles with both the disordered rutile surface and mixed crystalline phase showed significantly enhanced catalytic activity.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/catal9060491</doi><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 2073-4344 |
ispartof | Catalysts, 2019-06, Vol.9 (6), p.491 |
issn | 2073-4344 2073-4344 |
language | eng |
recordid | cdi_proquest_journals_2547548428 |
source | MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals |
subjects | Anatase Catalysts Catalytic activity Chemical activity Chemical reactions Chemical reduction Chemical synthesis Climate change Crystal structure Crystallinity Electromagnetic absorption Ethylenediamine Hydrogen Hydrogen production Light Morphology Nanocrystals Nanoparticles Optical properties Photocatalysis Photocatalysts Roasting Rutile Sol-gel processes Solar energy Surface chemistry Surfactants Titanium Titanium dioxide |
title | Synthesis of Spherical TiO2 Particles with Disordered Rutile Surface for Photocatalytic Hydrogen Production |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-13T09%3A47%3A52IST&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=Synthesis%20of%20Spherical%20TiO2%20Particles%20with%20Disordered%20Rutile%20Surface%20for%20Photocatalytic%20Hydrogen%20Production&rft.jtitle=Catalysts&rft.au=Kim,%20Na%20Yeon&rft.date=2019-06-01&rft.volume=9&rft.issue=6&rft.spage=491&rft.pages=491-&rft.issn=2073-4344&rft.eissn=2073-4344&rft_id=info:doi/10.3390/catal9060491&rft_dat=%3Cproquest_cross%3E2547548428%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=2547548428&rft_id=info:pmid/&rfr_iscdi=true |