Nanocrystalline N-doped ceria porous thin films as efficient visible-active photocatalysts
Nanocrystalline porous N-doped ceria films have been prepared by combining sol-gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH sub(3) gas between 550 and 700 degree C at flow rates of 270 and 670 cm super(3) min super(-1). The maximum nitrogen uptak...
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| Veröffentlicht in: | Journal of materials chemistry 2012-01, Vol.22 (7), p.3220-3226 |
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| container_title | Journal of materials chemistry |
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| creator | Jorge, A. Belén Sakatani, Yoshiaki Boissière, Cédric Laberty-Roberts, Christel Sauthier, Guillaume Fraxedas, Jordi Sanchez, Clément Fuertes, Amparo |
| description | Nanocrystalline porous N-doped ceria films have been prepared by combining sol-gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH sub(3) gas between 550 and 700 degree C at flow rates of 270 and 670 cm super(3) min super(-1). The maximum nitrogen uptake is 0.06 moles per Ce, observed for the sample treated at 600 degree C and NH sub(3) flow rate of 670 cm super(3) min super(-1). Nitrogen bonding to cerium is proved by XPS, through the observation of the characteristic Ce-N feature at similar to 397 eV. Microstructural characterization shows that the mesostructure of the films is lost for treatment temperatures in ammonia higher than 550 degree C but the porous fraction remains between 35 and 40% after ammonolysis for all the samples. The nitrided films show photocatalytic activity under visible light in the acetaldehyde decomposition, with the best results obtained for the films treated at 550 degree C under NH sub(3) flow rate of 670 cm super(3) min super(-1). |
| doi_str_mv | 10.1039/c2jm15230d |
| format | Article |
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Belén ; Sakatani, Yoshiaki ; Boissière, Cédric ; Laberty-Roberts, Christel ; Sauthier, Guillaume ; Fraxedas, Jordi ; Sanchez, Clément ; Fuertes, Amparo</creator><creatorcontrib>Jorge, A. Belén ; Sakatani, Yoshiaki ; Boissière, Cédric ; Laberty-Roberts, Christel ; Sauthier, Guillaume ; Fraxedas, Jordi ; Sanchez, Clément ; Fuertes, Amparo</creatorcontrib><description>Nanocrystalline porous N-doped ceria films have been prepared by combining sol-gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH sub(3) gas between 550 and 700 degree C at flow rates of 270 and 670 cm super(3) min super(-1). The maximum nitrogen uptake is 0.06 moles per Ce, observed for the sample treated at 600 degree C and NH sub(3) flow rate of 670 cm super(3) min super(-1). Nitrogen bonding to cerium is proved by XPS, through the observation of the characteristic Ce-N feature at similar to 397 eV. Microstructural characterization shows that the mesostructure of the films is lost for treatment temperatures in ammonia higher than 550 degree C but the porous fraction remains between 35 and 40% after ammonolysis for all the samples. The nitrided films show photocatalytic activity under visible light in the acetaldehyde decomposition, with the best results obtained for the films treated at 550 degree C under NH sub(3) flow rate of 670 cm super(3) min super(-1).</description><identifier>ISSN: 0959-9428</identifier><identifier>EISSN: 1364-5501</identifier><identifier>DOI: 10.1039/c2jm15230d</identifier><language>eng</language><publisher>Royal Society of Chemistry</publisher><subject>Ammonolysis ; Cerium oxide ; Chemical Sciences ; Flow rate ; Material chemistry ; Nanocrystals ; Photocatalysis ; Self assembly ; Sol gel process ; Thin films ; X-ray photoelectron spectroscopy</subject><ispartof>Journal of materials chemistry, 2012-01, Vol.22 (7), p.3220-3226</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c298t-65083ed4add9715adfd5ca6c577e67728e91e2e5863c126e08f7fbef5d4881273</citedby><cites>FETCH-LOGICAL-c298t-65083ed4add9715adfd5ca6c577e67728e91e2e5863c126e08f7fbef5d4881273</cites><orcidid>0000-0003-1212-6850 ; 0000-0002-6426-4844 ; 0000-0002-2821-4831</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://hal.science/hal-01468498$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Jorge, A. Belén</creatorcontrib><creatorcontrib>Sakatani, Yoshiaki</creatorcontrib><creatorcontrib>Boissière, Cédric</creatorcontrib><creatorcontrib>Laberty-Roberts, Christel</creatorcontrib><creatorcontrib>Sauthier, Guillaume</creatorcontrib><creatorcontrib>Fraxedas, Jordi</creatorcontrib><creatorcontrib>Sanchez, Clément</creatorcontrib><creatorcontrib>Fuertes, Amparo</creatorcontrib><title>Nanocrystalline N-doped ceria porous thin films as efficient visible-active photocatalysts</title><title>Journal of materials chemistry</title><description>Nanocrystalline porous N-doped ceria films have been prepared by combining sol-gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH sub(3) gas between 550 and 700 degree C at flow rates of 270 and 670 cm super(3) min super(-1). The maximum nitrogen uptake is 0.06 moles per Ce, observed for the sample treated at 600 degree C and NH sub(3) flow rate of 670 cm super(3) min super(-1). Nitrogen bonding to cerium is proved by XPS, through the observation of the characteristic Ce-N feature at similar to 397 eV. Microstructural characterization shows that the mesostructure of the films is lost for treatment temperatures in ammonia higher than 550 degree C but the porous fraction remains between 35 and 40% after ammonolysis for all the samples. The nitrided films show photocatalytic activity under visible light in the acetaldehyde decomposition, with the best results obtained for the films treated at 550 degree C under NH sub(3) flow rate of 670 cm super(3) min super(-1).</description><subject>Ammonolysis</subject><subject>Cerium oxide</subject><subject>Chemical Sciences</subject><subject>Flow rate</subject><subject>Material chemistry</subject><subject>Nanocrystals</subject><subject>Photocatalysis</subject><subject>Self assembly</subject><subject>Sol gel process</subject><subject>Thin films</subject><subject>X-ray photoelectron spectroscopy</subject><issn>0959-9428</issn><issn>1364-5501</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNpFkM1KAzEYRYMoWKsbnyBLFUaTzORvWYpaodSNbtwMafKFpmQm42Ra6Ns7paKrC5fDgXsRuqXkkZJSP1m2bShnJXFnaEJLURWcE3qOJkRzXeiKqUt0lfOWEEql4BP0tTJtsv0hDybG0AJeFS514LCFPhjcpT7tMh42ocU-xCZjkzF4H2yAdsD7kMM6QmHsEPaAu00akjWjavTla3ThTcxw85tT9Pny_DFfFMv317f5bFlYptVQCE5UCa4yzmlJuXHecWuE5VKCkJIp0BQYcCVKS5kAorz0a_DcVUpRJsspuj95NybWXR8a0x_qZEK9mC3rY0doJVSl1Z6O7N2J7fr0vYM81E3IFmI0LYxD6_FExXgptBjRhxNq-5RzD_7PTcmR0_X_2eUPSM9y2A</recordid><startdate>20120101</startdate><enddate>20120101</enddate><creator>Jorge, A. 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Belén</creatorcontrib><creatorcontrib>Sakatani, Yoshiaki</creatorcontrib><creatorcontrib>Boissière, Cédric</creatorcontrib><creatorcontrib>Laberty-Roberts, Christel</creatorcontrib><creatorcontrib>Sauthier, Guillaume</creatorcontrib><creatorcontrib>Fraxedas, Jordi</creatorcontrib><creatorcontrib>Sanchez, Clément</creatorcontrib><creatorcontrib>Fuertes, Amparo</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Journal of materials chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jorge, A. Belén</au><au>Sakatani, Yoshiaki</au><au>Boissière, Cédric</au><au>Laberty-Roberts, Christel</au><au>Sauthier, Guillaume</au><au>Fraxedas, Jordi</au><au>Sanchez, Clément</au><au>Fuertes, Amparo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nanocrystalline N-doped ceria porous thin films as efficient visible-active photocatalysts</atitle><jtitle>Journal of materials chemistry</jtitle><date>2012-01-01</date><risdate>2012</risdate><volume>22</volume><issue>7</issue><spage>3220</spage><epage>3226</epage><pages>3220-3226</pages><issn>0959-9428</issn><eissn>1364-5501</eissn><abstract>Nanocrystalline porous N-doped ceria films have been prepared by combining sol-gel chemistry, evaporation-induced self-assembly (EISA), flash crystallization and treatment in NH sub(3) gas between 550 and 700 degree C at flow rates of 270 and 670 cm super(3) min super(-1). The maximum nitrogen uptake is 0.06 moles per Ce, observed for the sample treated at 600 degree C and NH sub(3) flow rate of 670 cm super(3) min super(-1). Nitrogen bonding to cerium is proved by XPS, through the observation of the characteristic Ce-N feature at similar to 397 eV. Microstructural characterization shows that the mesostructure of the films is lost for treatment temperatures in ammonia higher than 550 degree C but the porous fraction remains between 35 and 40% after ammonolysis for all the samples. The nitrided films show photocatalytic activity under visible light in the acetaldehyde decomposition, with the best results obtained for the films treated at 550 degree C under NH sub(3) flow rate of 670 cm super(3) min super(-1).</abstract><pub>Royal Society of Chemistry</pub><doi>10.1039/c2jm15230d</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-1212-6850</orcidid><orcidid>https://orcid.org/0000-0002-6426-4844</orcidid><orcidid>https://orcid.org/0000-0002-2821-4831</orcidid></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Ammonolysis Cerium oxide Chemical Sciences Flow rate Material chemistry Nanocrystals Photocatalysis Self assembly Sol gel process Thin films X-ray photoelectron spectroscopy |
| title | Nanocrystalline N-doped ceria porous thin films as efficient visible-active photocatalysts |
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