Toluene decomposition using silver vanadate/SBA-15 photocatalysts: DRIFTS study of surface chemistry and recyclability
[Display omitted] ► SVO/SBA-15 composite was synthesized using a wetness impregnation procedure. ► SVO/SBA-15 has a much higher photodegradation ability than those of P25 and SVO. ► The mass spectra prove the main oxidation intermediate of toluene is benzaldehyde. ► A favorable crystalline phase, Br...
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| Veröffentlicht in: | Applied catalysis. A, General General, 2011-11, Vol.407 (1), p.224-230 |
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| creator | Chang, Wen-Sheng Li, Yu-Chu M. Chung, Tsair-Wang Lin, Yung-Sen Huang, Chao-Ming |
| description | [Display omitted]
► SVO/SBA-15 composite was synthesized using a wetness impregnation procedure. ► SVO/SBA-15 has a much higher photodegradation ability than those of P25 and SVO. ► The mass spectra prove the main oxidation intermediate of toluene is benzaldehyde. ► A favorable crystalline phase, Brønsted, and Lewis acids are responsible for photoactivity.
Silver vanadate (SVO) containing SBA-15 visible-light-driven photocatalyst was synthesized using the incipient wetness impregnation procedure. X-ray diffraction (XRD) results reveal that the SVO/SBA-15 powders consisted of three kinds of phase: pure Ag
4V
2O
7 or pure α-Ag
3VO
4 or mixed phases of Ag
4V
2O
7 and α-Ag
3VO
4. The mass spectra indicate that the main oxidation intermediate of toluene is benzaldehyde. The sample loaded with 51
wt% SVO (51SVO/SBA-15) exhibited the best photocatalytic activity. The results of two consecutive cyclic runs and regeneration indicate that the accumulation of benzaldehyde causes an irreversible deactivation of P25, but no deactivation of 51SVO/SBA-15. The enhanced photocatalytic activity of 51SVO/SBA-15 is attributed to mixed crystalline phases of Ag
4V
2O
7 and α-Ag
3VO
4, where α-Ag
3VO
4 is the major component. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) confirms the presence of Brønsted and Lewis acids on the SVO/SBA-15 composites. A favorable crystalline phase combined with high intensities of Brønsted and Lewis acids is considered the main cause of the enhanced adsorption capacity, outstanding photoactivity, and long term stability of the SVO/SBA-15 composites. |
| doi_str_mv | 10.1016/j.apcata.2011.08.043 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_963841435</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0926860X11005102</els_id><sourcerecordid>963841435</sourcerecordid><originalsourceid>FETCH-LOGICAL-c368t-c258fc0bae2d9d9b7ba6ea892c01042106d7969830490501b163eba30faa30a63</originalsourceid><addsrcrecordid>eNp9kEFv1DAQhS0EEkvhH3DwBXFKOo4Tr80BqRRKK1VCoovEzZo4E-pVNg62s1L-PVltxbGXmct78958jL0XUAoQ6nJf4uQwY1mBECXoEmr5gm2E3spC6m3zkm3AVKrQCn6_Zm9S2gNAVZtmw467MMw0Eu_IhcMUks8-jHxOfvzDkx-OFPkRR-ww0-XDl6tCNHx6DDmc8oYl5fSJf_15d7N74CnP3cJDz9Mce3TE3SMdfMpx4Th2PJJb3ICtH3xe3rJXPQ6J3j3tC_br5tvu-ra4__H97vrqvnBS6Vy4qtG9gxap6kxn2m2LilCbyoGAuhKguq1RRkuoDTQgWqEktSihx3Wgkhfs4_nuFMPfmVK2ayNHw4AjhTlZo6SuRS2bVVmflS6GlCL1dor-gHGxAuyJst3bM2V7omxB25XyavvwFIDJ4dBHHJ1P_71VrSpZq1ORz2cdrd8ePUWbnKfRUedXMNl2wT8f9A_nf5Xy</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>963841435</pqid></control><display><type>article</type><title>Toluene decomposition using silver vanadate/SBA-15 photocatalysts: DRIFTS study of surface chemistry and recyclability</title><source>Elsevier ScienceDirect Journals</source><creator>Chang, Wen-Sheng ; Li, Yu-Chu M. ; Chung, Tsair-Wang ; Lin, Yung-Sen ; Huang, Chao-Ming</creator><creatorcontrib>Chang, Wen-Sheng ; Li, Yu-Chu M. ; Chung, Tsair-Wang ; Lin, Yung-Sen ; Huang, Chao-Ming</creatorcontrib><description>[Display omitted]
► SVO/SBA-15 composite was synthesized using a wetness impregnation procedure. ► SVO/SBA-15 has a much higher photodegradation ability than those of P25 and SVO. ► The mass spectra prove the main oxidation intermediate of toluene is benzaldehyde. ► A favorable crystalline phase, Brønsted, and Lewis acids are responsible for photoactivity.
Silver vanadate (SVO) containing SBA-15 visible-light-driven photocatalyst was synthesized using the incipient wetness impregnation procedure. X-ray diffraction (XRD) results reveal that the SVO/SBA-15 powders consisted of three kinds of phase: pure Ag
4V
2O
7 or pure α-Ag
3VO
4 or mixed phases of Ag
4V
2O
7 and α-Ag
3VO
4. The mass spectra indicate that the main oxidation intermediate of toluene is benzaldehyde. The sample loaded with 51
wt% SVO (51SVO/SBA-15) exhibited the best photocatalytic activity. The results of two consecutive cyclic runs and regeneration indicate that the accumulation of benzaldehyde causes an irreversible deactivation of P25, but no deactivation of 51SVO/SBA-15. The enhanced photocatalytic activity of 51SVO/SBA-15 is attributed to mixed crystalline phases of Ag
4V
2O
7 and α-Ag
3VO
4, where α-Ag
3VO
4 is the major component. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) confirms the presence of Brønsted and Lewis acids on the SVO/SBA-15 composites. A favorable crystalline phase combined with high intensities of Brønsted and Lewis acids is considered the main cause of the enhanced adsorption capacity, outstanding photoactivity, and long term stability of the SVO/SBA-15 composites.</description><identifier>ISSN: 0926-860X</identifier><identifier>EISSN: 1873-3875</identifier><identifier>DOI: 10.1016/j.apcata.2011.08.043</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Benzaldehyde ; Brønsted and Lewis acids ; Catalysis ; Chemistry ; Colloidal state and disperse state ; Drift ; Exact sciences and technology ; General and physical chemistry ; Lewis acid ; Phase (cyclic) ; Photocatalysis ; Photocatalysts ; Photochemistry ; Physical chemistry of induced reactions (with radiations, particles and ultrasonics) ; Porous materials ; SBA-15 ; Silver ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Toluene photo-oxidation ; Vanadates ; Visible-light-driven photocatalyst</subject><ispartof>Applied catalysis. A, General, 2011-11, Vol.407 (1), p.224-230</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c368t-c258fc0bae2d9d9b7ba6ea892c01042106d7969830490501b163eba30faa30a63</citedby><cites>FETCH-LOGICAL-c368t-c258fc0bae2d9d9b7ba6ea892c01042106d7969830490501b163eba30faa30a63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.apcata.2011.08.043$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24623466$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Chang, Wen-Sheng</creatorcontrib><creatorcontrib>Li, Yu-Chu M.</creatorcontrib><creatorcontrib>Chung, Tsair-Wang</creatorcontrib><creatorcontrib>Lin, Yung-Sen</creatorcontrib><creatorcontrib>Huang, Chao-Ming</creatorcontrib><title>Toluene decomposition using silver vanadate/SBA-15 photocatalysts: DRIFTS study of surface chemistry and recyclability</title><title>Applied catalysis. A, General</title><description>[Display omitted]
► SVO/SBA-15 composite was synthesized using a wetness impregnation procedure. ► SVO/SBA-15 has a much higher photodegradation ability than those of P25 and SVO. ► The mass spectra prove the main oxidation intermediate of toluene is benzaldehyde. ► A favorable crystalline phase, Brønsted, and Lewis acids are responsible for photoactivity.
Silver vanadate (SVO) containing SBA-15 visible-light-driven photocatalyst was synthesized using the incipient wetness impregnation procedure. X-ray diffraction (XRD) results reveal that the SVO/SBA-15 powders consisted of three kinds of phase: pure Ag
4V
2O
7 or pure α-Ag
3VO
4 or mixed phases of Ag
4V
2O
7 and α-Ag
3VO
4. The mass spectra indicate that the main oxidation intermediate of toluene is benzaldehyde. The sample loaded with 51
wt% SVO (51SVO/SBA-15) exhibited the best photocatalytic activity. The results of two consecutive cyclic runs and regeneration indicate that the accumulation of benzaldehyde causes an irreversible deactivation of P25, but no deactivation of 51SVO/SBA-15. The enhanced photocatalytic activity of 51SVO/SBA-15 is attributed to mixed crystalline phases of Ag
4V
2O
7 and α-Ag
3VO
4, where α-Ag
3VO
4 is the major component. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) confirms the presence of Brønsted and Lewis acids on the SVO/SBA-15 composites. A favorable crystalline phase combined with high intensities of Brønsted and Lewis acids is considered the main cause of the enhanced adsorption capacity, outstanding photoactivity, and long term stability of the SVO/SBA-15 composites.</description><subject>Benzaldehyde</subject><subject>Brønsted and Lewis acids</subject><subject>Catalysis</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Drift</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Lewis acid</subject><subject>Phase (cyclic)</subject><subject>Photocatalysis</subject><subject>Photocatalysts</subject><subject>Photochemistry</subject><subject>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</subject><subject>Porous materials</subject><subject>SBA-15</subject><subject>Silver</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Toluene photo-oxidation</subject><subject>Vanadates</subject><subject>Visible-light-driven photocatalyst</subject><issn>0926-860X</issn><issn>1873-3875</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kEFv1DAQhS0EEkvhH3DwBXFKOo4Tr80BqRRKK1VCoovEzZo4E-pVNg62s1L-PVltxbGXmct78958jL0XUAoQ6nJf4uQwY1mBECXoEmr5gm2E3spC6m3zkm3AVKrQCn6_Zm9S2gNAVZtmw467MMw0Eu_IhcMUks8-jHxOfvzDkx-OFPkRR-ww0-XDl6tCNHx6DDmc8oYl5fSJf_15d7N74CnP3cJDz9Mce3TE3SMdfMpx4Th2PJJb3ICtH3xe3rJXPQ6J3j3tC_br5tvu-ra4__H97vrqvnBS6Vy4qtG9gxap6kxn2m2LilCbyoGAuhKguq1RRkuoDTQgWqEktSihx3Wgkhfs4_nuFMPfmVK2ayNHw4AjhTlZo6SuRS2bVVmflS6GlCL1dor-gHGxAuyJst3bM2V7omxB25XyavvwFIDJ4dBHHJ1P_71VrSpZq1ORz2cdrd8ePUWbnKfRUedXMNl2wT8f9A_nf5Xy</recordid><startdate>20111104</startdate><enddate>20111104</enddate><creator>Chang, Wen-Sheng</creator><creator>Li, Yu-Chu M.</creator><creator>Chung, Tsair-Wang</creator><creator>Lin, Yung-Sen</creator><creator>Huang, Chao-Ming</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20111104</creationdate><title>Toluene decomposition using silver vanadate/SBA-15 photocatalysts: DRIFTS study of surface chemistry and recyclability</title><author>Chang, Wen-Sheng ; Li, Yu-Chu M. ; Chung, Tsair-Wang ; Lin, Yung-Sen ; Huang, Chao-Ming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c368t-c258fc0bae2d9d9b7ba6ea892c01042106d7969830490501b163eba30faa30a63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Benzaldehyde</topic><topic>Brønsted and Lewis acids</topic><topic>Catalysis</topic><topic>Chemistry</topic><topic>Colloidal state and disperse state</topic><topic>Drift</topic><topic>Exact sciences and technology</topic><topic>General and physical chemistry</topic><topic>Lewis acid</topic><topic>Phase (cyclic)</topic><topic>Photocatalysis</topic><topic>Photocatalysts</topic><topic>Photochemistry</topic><topic>Physical chemistry of induced reactions (with radiations, particles and ultrasonics)</topic><topic>Porous materials</topic><topic>SBA-15</topic><topic>Silver</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>Toluene photo-oxidation</topic><topic>Vanadates</topic><topic>Visible-light-driven photocatalyst</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chang, Wen-Sheng</creatorcontrib><creatorcontrib>Li, Yu-Chu M.</creatorcontrib><creatorcontrib>Chung, Tsair-Wang</creatorcontrib><creatorcontrib>Lin, Yung-Sen</creatorcontrib><creatorcontrib>Huang, Chao-Ming</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</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><jtitle>Applied catalysis. A, General</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chang, Wen-Sheng</au><au>Li, Yu-Chu M.</au><au>Chung, Tsair-Wang</au><au>Lin, Yung-Sen</au><au>Huang, Chao-Ming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Toluene decomposition using silver vanadate/SBA-15 photocatalysts: DRIFTS study of surface chemistry and recyclability</atitle><jtitle>Applied catalysis. A, General</jtitle><date>2011-11-04</date><risdate>2011</risdate><volume>407</volume><issue>1</issue><spage>224</spage><epage>230</epage><pages>224-230</pages><issn>0926-860X</issn><eissn>1873-3875</eissn><abstract>[Display omitted]
► SVO/SBA-15 composite was synthesized using a wetness impregnation procedure. ► SVO/SBA-15 has a much higher photodegradation ability than those of P25 and SVO. ► The mass spectra prove the main oxidation intermediate of toluene is benzaldehyde. ► A favorable crystalline phase, Brønsted, and Lewis acids are responsible for photoactivity.
Silver vanadate (SVO) containing SBA-15 visible-light-driven photocatalyst was synthesized using the incipient wetness impregnation procedure. X-ray diffraction (XRD) results reveal that the SVO/SBA-15 powders consisted of three kinds of phase: pure Ag
4V
2O
7 or pure α-Ag
3VO
4 or mixed phases of Ag
4V
2O
7 and α-Ag
3VO
4. The mass spectra indicate that the main oxidation intermediate of toluene is benzaldehyde. The sample loaded with 51
wt% SVO (51SVO/SBA-15) exhibited the best photocatalytic activity. The results of two consecutive cyclic runs and regeneration indicate that the accumulation of benzaldehyde causes an irreversible deactivation of P25, but no deactivation of 51SVO/SBA-15. The enhanced photocatalytic activity of 51SVO/SBA-15 is attributed to mixed crystalline phases of Ag
4V
2O
7 and α-Ag
3VO
4, where α-Ag
3VO
4 is the major component. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) confirms the presence of Brønsted and Lewis acids on the SVO/SBA-15 composites. A favorable crystalline phase combined with high intensities of Brønsted and Lewis acids is considered the main cause of the enhanced adsorption capacity, outstanding photoactivity, and long term stability of the SVO/SBA-15 composites.</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.apcata.2011.08.043</doi><tpages>7</tpages></addata></record> |
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| ispartof | Applied catalysis. A, General, 2011-11, Vol.407 (1), p.224-230 |
| issn | 0926-860X 1873-3875 |
| language | eng |
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| subjects | Benzaldehyde Brønsted and Lewis acids Catalysis Chemistry Colloidal state and disperse state Drift Exact sciences and technology General and physical chemistry Lewis acid Phase (cyclic) Photocatalysis Photocatalysts Photochemistry Physical chemistry of induced reactions (with radiations, particles and ultrasonics) Porous materials SBA-15 Silver Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Toluene photo-oxidation Vanadates Visible-light-driven photocatalyst |
| title | Toluene decomposition using silver vanadate/SBA-15 photocatalysts: DRIFTS study of surface chemistry and recyclability |
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