Photocatalytic oxidation of chlorinated hydrocarbons in water
The impact of surface modification on the photocatalytic activity of two different commercial TiO 2 catalysts is studied using different impregnation methods with platinum, silver and iron oxide. The Degussa P-25 TiO 2 as received is more active than Aldrich TiO 2, but the photocatalytic activity of...
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| Veröffentlicht in: | Water research (Oxford) 1997, Vol.31 (3), p.429-438 |
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| creator | Crittenden, John C. Liu, Junbiao Hand, David W. Perram, David L. |
| description | The impact of surface modification on the photocatalytic activity of two different commercial TiO
2 catalysts is studied using different impregnation methods with platinum, silver and iron oxide. The Degussa P-25 TiO
2 as received is more active than Aldrich TiO
2, but the photocatalytic activity of Aldrich TiO
2 can be greatly increased by surface modification with platinum or silver. No improvement in the photocatalytic activity has been observed for the Degussa P-25 TiO
2 impregnated with platinum. The most active photocatalyst for the trichloroethylene (TCE) destruction is Aldrich TiO
2 loaded with 1.0 wt% platinum using a photoreduction method. Similar destruction efficiency was obtained for the destruction of
para-Dichlorobenzene (
p-DCB) using platinized Aldrich TiO
2 as catalyst. A kinetic model developed in this study can quantitatively describe the effect of light intensity and catalyst dosage on the photocatalytic oxidation of TCE. The reaction rate is proportional to the half-order of incident light intensity for the light intensity within the range studied (83.2–743.3 mW/L). The optimum catalyst dosage increases as the incident light intensity increases. |
| doi_str_mv | 10.1016/S0043-1354(96)00267-9 |
| format | Article |
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2 catalysts is studied using different impregnation methods with platinum, silver and iron oxide. The Degussa P-25 TiO
2 as received is more active than Aldrich TiO
2, but the photocatalytic activity of Aldrich TiO
2 can be greatly increased by surface modification with platinum or silver. No improvement in the photocatalytic activity has been observed for the Degussa P-25 TiO
2 impregnated with platinum. The most active photocatalyst for the trichloroethylene (TCE) destruction is Aldrich TiO
2 loaded with 1.0 wt% platinum using a photoreduction method. Similar destruction efficiency was obtained for the destruction of
para-Dichlorobenzene (
p-DCB) using platinized Aldrich TiO
2 as catalyst. A kinetic model developed in this study can quantitatively describe the effect of light intensity and catalyst dosage on the photocatalytic oxidation of TCE. The reaction rate is proportional to the half-order of incident light intensity for the light intensity within the range studied (83.2–743.3 mW/L). The optimum catalyst dosage increases as the incident light intensity increases.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/S0043-1354(96)00267-9</identifier><identifier>CODEN: WATRAG</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>advanced oxidation ; Applied sciences ; Drinking water and swimming-pool water. Desalination ; Exact sciences and technology ; Freshwater ; organic contaminant oxidation ; photocatalysis ; platinized titanium dioxide ; Pollution ; silverized titanium dioxide ; titanium dioxide ; Water treatment and pollution</subject><ispartof>Water research (Oxford), 1997, Vol.31 (3), p.429-438</ispartof><rights>1997</rights><rights>1997 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c464t-e52e63d3d885dbf68045c3b73827ba03739df8b08edbc91d51518c99728c1a7d3</citedby><cites>FETCH-LOGICAL-c464t-e52e63d3d885dbf68045c3b73827ba03739df8b08edbc91d51518c99728c1a7d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0043-1354(96)00267-9$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,4025,27928,27929,27930,46000</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2625076$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Crittenden, John C.</creatorcontrib><creatorcontrib>Liu, Junbiao</creatorcontrib><creatorcontrib>Hand, David W.</creatorcontrib><creatorcontrib>Perram, David L.</creatorcontrib><title>Photocatalytic oxidation of chlorinated hydrocarbons in water</title><title>Water research (Oxford)</title><description>The impact of surface modification on the photocatalytic activity of two different commercial TiO
2 catalysts is studied using different impregnation methods with platinum, silver and iron oxide. The Degussa P-25 TiO
2 as received is more active than Aldrich TiO
2, but the photocatalytic activity of Aldrich TiO
2 can be greatly increased by surface modification with platinum or silver. No improvement in the photocatalytic activity has been observed for the Degussa P-25 TiO
2 impregnated with platinum. The most active photocatalyst for the trichloroethylene (TCE) destruction is Aldrich TiO
2 loaded with 1.0 wt% platinum using a photoreduction method. Similar destruction efficiency was obtained for the destruction of
para-Dichlorobenzene (
p-DCB) using platinized Aldrich TiO
2 as catalyst. A kinetic model developed in this study can quantitatively describe the effect of light intensity and catalyst dosage on the photocatalytic oxidation of TCE. The reaction rate is proportional to the half-order of incident light intensity for the light intensity within the range studied (83.2–743.3 mW/L). The optimum catalyst dosage increases as the incident light intensity increases.</description><subject>advanced oxidation</subject><subject>Applied sciences</subject><subject>Drinking water and swimming-pool water. Desalination</subject><subject>Exact sciences and technology</subject><subject>Freshwater</subject><subject>organic contaminant oxidation</subject><subject>photocatalysis</subject><subject>platinized titanium dioxide</subject><subject>Pollution</subject><subject>silverized titanium dioxide</subject><subject>titanium dioxide</subject><subject>Water treatment and pollution</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqFkMtKAzEUhoMoWKuPIMxCRBejuUxuC5FSvEFBQV2HTJKhkemkJqnat3d6oduuDhy-__yHD4BzBG8QROz2HcKKlIjQ6kqyawgx46U8AAMkuCxxVYlDMNghx-AkpS_YU5jIAbh7m4YcjM66XWZvivDnrc4-dEVoCjNtQ_Sdzs4W06WNPRfr0KXCd8Vvv42n4KjRbXJn2zkEn48PH-PncvL69DIeTUpTsSqXjmLHiCVWCGrrhglYUUNqTgTmtYaEE2kbUUPhbG0kshRRJIyUHAuDNLdkCC43d-cxfC9cymrmk3FtqzsXFkkhBgnmhO0HqRRIStKDdAOaGFKKrlHz6Gc6LhWCamVVra2qlTIlmVpbVbLPXWwLdDK6baLujE-7MGaYQr76436Dud7Kj3dRJeNdZ5z10ZmsbPB7iv4BQQiLTw</recordid><startdate>1997</startdate><enddate>1997</enddate><creator>Crittenden, John C.</creator><creator>Liu, Junbiao</creator><creator>Hand, David W.</creator><creator>Perram, David L.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TV</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>1997</creationdate><title>Photocatalytic oxidation of chlorinated hydrocarbons in water</title><author>Crittenden, John C. ; Liu, Junbiao ; Hand, David W. ; Perram, David L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-e52e63d3d885dbf68045c3b73827ba03739df8b08edbc91d51518c99728c1a7d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>advanced oxidation</topic><topic>Applied sciences</topic><topic>Drinking water and swimming-pool water. Desalination</topic><topic>Exact sciences and technology</topic><topic>Freshwater</topic><topic>organic contaminant oxidation</topic><topic>photocatalysis</topic><topic>platinized titanium dioxide</topic><topic>Pollution</topic><topic>silverized titanium dioxide</topic><topic>titanium dioxide</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Crittenden, John C.</creatorcontrib><creatorcontrib>Liu, Junbiao</creatorcontrib><creatorcontrib>Hand, David W.</creatorcontrib><creatorcontrib>Perram, David L.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Crittenden, John C.</au><au>Liu, Junbiao</au><au>Hand, David W.</au><au>Perram, David L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photocatalytic oxidation of chlorinated hydrocarbons in water</atitle><jtitle>Water research (Oxford)</jtitle><date>1997</date><risdate>1997</risdate><volume>31</volume><issue>3</issue><spage>429</spage><epage>438</epage><pages>429-438</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><coden>WATRAG</coden><abstract>The impact of surface modification on the photocatalytic activity of two different commercial TiO
2 catalysts is studied using different impregnation methods with platinum, silver and iron oxide. The Degussa P-25 TiO
2 as received is more active than Aldrich TiO
2, but the photocatalytic activity of Aldrich TiO
2 can be greatly increased by surface modification with platinum or silver. No improvement in the photocatalytic activity has been observed for the Degussa P-25 TiO
2 impregnated with platinum. The most active photocatalyst for the trichloroethylene (TCE) destruction is Aldrich TiO
2 loaded with 1.0 wt% platinum using a photoreduction method. Similar destruction efficiency was obtained for the destruction of
para-Dichlorobenzene (
p-DCB) using platinized Aldrich TiO
2 as catalyst. A kinetic model developed in this study can quantitatively describe the effect of light intensity and catalyst dosage on the photocatalytic oxidation of TCE. The reaction rate is proportional to the half-order of incident light intensity for the light intensity within the range studied (83.2–743.3 mW/L). The optimum catalyst dosage increases as the incident light intensity increases.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0043-1354(96)00267-9</doi><tpages>10</tpages></addata></record> |
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| ispartof | Water research (Oxford), 1997, Vol.31 (3), p.429-438 |
| issn | 0043-1354 1879-2448 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | advanced oxidation Applied sciences Drinking water and swimming-pool water. Desalination Exact sciences and technology Freshwater organic contaminant oxidation photocatalysis platinized titanium dioxide Pollution silverized titanium dioxide titanium dioxide Water treatment and pollution |
| title | Photocatalytic oxidation of chlorinated hydrocarbons in water |
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