Decomposition of H2O2 on activated carbon obtained from olive stones
Activated carbons were prepared from olive oil solid wastes by treatment in different schemes: impregnation with H3PO4 followed by pyrolysis at 300–700 °C, by steam pyrolysis at 600–700 °C, or by conventional steam activation at 850 °C. Porosity characteristics were determined by analysis of nitroge...
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| Veröffentlicht in: | Journal of chemical technology and biotechnology (1986) 2001-11, Vol.76 (11), p.1132-1140 |
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| container_title | Journal of chemical technology and biotechnology (1986) |
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| creator | Khalil, Laila B Girgis, Badie S Tawfik, Tarek A M |
| description | Activated carbons were prepared from olive oil solid wastes by treatment in different schemes: impregnation with H3PO4 followed by pyrolysis at 300–700 °C, by steam pyrolysis at 600–700 °C, or by conventional steam activation at 850 °C. Porosity characteristics were determined by analysis of nitrogen adsorption isotherms, and carbons of widely different properties and surface pH values were obtained. Decomposition of H2O2 in dilute unbuffered solution was followed by measuring evolved oxygen volumetrically. First‐order kinetics was followed, and the catalytic rate coefficients were evaluated. The carbons tested showed appreciable activity where evolved oxygen attained ≈10% of the stoichiometric amount in 1 h. The degree of decomposition showed inverse dependence on surface area, pore volume and mean pore dimensions. The chemical nature of the surface, rather than the porosity characteristics, was the principal factor in enhancing the disproportionation of H2O2 on the activated carbon surface.
© 2001 Society of Chemical Industry |
| doi_str_mv | 10.1002/jctb.481 |
| format | Article |
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© 2001 Society of Chemical Industry</description><identifier>ISSN: 0268-2575</identifier><identifier>EISSN: 1097-4660</identifier><identifier>DOI: 10.1002/jctb.481</identifier><identifier>CODEN: JCTBDC</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>activated carbon ; Agriculture, rearing and food industries wastes ; Applied sciences ; Biological and medical sciences ; Catalysis ; Catalysts: preparations and properties ; Chemistry ; Exact sciences and technology ; Food industries ; Fundamental and applied biological sciences. Psychology ; General and physical chemistry ; H2O2 decomposition ; Pollution ; porosity ; surface acidity ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Use and upgrading of agricultural and food by-products. Biotechnology ; Wastes</subject><ispartof>Journal of chemical technology and biotechnology (1986), 2001-11, Vol.76 (11), p.1132-1140</ispartof><rights>2001 Society of Chemical Industry</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjctb.481$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjctb.481$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14068123$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Khalil, Laila B</creatorcontrib><creatorcontrib>Girgis, Badie S</creatorcontrib><creatorcontrib>Tawfik, Tarek A M</creatorcontrib><title>Decomposition of H2O2 on activated carbon obtained from olive stones</title><title>Journal of chemical technology and biotechnology (1986)</title><addtitle>J. Chem. Technol. Biotechnol</addtitle><description>Activated carbons were prepared from olive oil solid wastes by treatment in different schemes: impregnation with H3PO4 followed by pyrolysis at 300–700 °C, by steam pyrolysis at 600–700 °C, or by conventional steam activation at 850 °C. Porosity characteristics were determined by analysis of nitrogen adsorption isotherms, and carbons of widely different properties and surface pH values were obtained. Decomposition of H2O2 in dilute unbuffered solution was followed by measuring evolved oxygen volumetrically. First‐order kinetics was followed, and the catalytic rate coefficients were evaluated. The carbons tested showed appreciable activity where evolved oxygen attained ≈10% of the stoichiometric amount in 1 h. The degree of decomposition showed inverse dependence on surface area, pore volume and mean pore dimensions. The chemical nature of the surface, rather than the porosity characteristics, was the principal factor in enhancing the disproportionation of H2O2 on the activated carbon surface.
© 2001 Society of Chemical Industry</description><subject>activated carbon</subject><subject>Agriculture, rearing and food industries wastes</subject><subject>Applied sciences</subject><subject>Biological and medical sciences</subject><subject>Catalysis</subject><subject>Catalysts: preparations and properties</subject><subject>Chemistry</subject><subject>Exact sciences and technology</subject><subject>Food industries</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General and physical chemistry</subject><subject>H2O2 decomposition</subject><subject>Pollution</subject><subject>porosity</subject><subject>surface acidity</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Use and upgrading of agricultural and food by-products. Biotechnology</subject><subject>Wastes</subject><issn>0268-2575</issn><issn>1097-4660</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNpFkMFKAzEQhoMoWKvgI-zF42oy2U2yR93aVin2UvEYkmwiqdtN2YRq394tFXv6Z_g_BuZD6Jbge4IxPKxN0veFIGdoRHDF84IxfI5GGJjIoeTlJbqKcY0xZgLYCE0m1oTNNkSffOiy4LI5LCEbRmWS36lkm8yoXh86nZTvht31YZOF1u9sFlPobLxGF0610d785Ri9T59X9TxfLGcv9eMi_4SKkRxoYYmjrmlKRlnjQFsjKCeUc8EcqQRoVQLWwDDljWDaFRUHU1FDG62Uo2N0d7y7VdGo1vWqMz7Kbe83qt9LUgxPEaADlx-5b9_a_anH8qBIHhTJQZF8rVdPQ554H5P9-edV_yUZp7yUH28zOQhc4brickp_AXgQaU8</recordid><startdate>200111</startdate><enddate>200111</enddate><creator>Khalil, Laila B</creator><creator>Girgis, Badie S</creator><creator>Tawfik, Tarek A M</creator><general>John Wiley & Sons, Ltd</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope></search><sort><creationdate>200111</creationdate><title>Decomposition of H2O2 on activated carbon obtained from olive stones</title><author>Khalil, Laila B ; Girgis, Badie S ; Tawfik, Tarek A M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g2961-234e1f3fdd5636df2bec837137786f1982ba520b26037d86bf4972c93c3dbaaf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>activated carbon</topic><topic>Agriculture, rearing and food industries wastes</topic><topic>Applied sciences</topic><topic>Biological and medical sciences</topic><topic>Catalysis</topic><topic>Catalysts: preparations and properties</topic><topic>Chemistry</topic><topic>Exact sciences and technology</topic><topic>Food industries</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>General and physical chemistry</topic><topic>H2O2 decomposition</topic><topic>Pollution</topic><topic>porosity</topic><topic>surface acidity</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>Use and upgrading of agricultural and food by-products. Biotechnology</topic><topic>Wastes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khalil, Laila B</creatorcontrib><creatorcontrib>Girgis, Badie S</creatorcontrib><creatorcontrib>Tawfik, Tarek A M</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><jtitle>Journal of chemical technology and biotechnology (1986)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Khalil, Laila B</au><au>Girgis, Badie S</au><au>Tawfik, Tarek A M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decomposition of H2O2 on activated carbon obtained from olive stones</atitle><jtitle>Journal of chemical technology and biotechnology (1986)</jtitle><addtitle>J. Chem. Technol. Biotechnol</addtitle><date>2001-11</date><risdate>2001</risdate><volume>76</volume><issue>11</issue><spage>1132</spage><epage>1140</epage><pages>1132-1140</pages><issn>0268-2575</issn><eissn>1097-4660</eissn><coden>JCTBDC</coden><abstract>Activated carbons were prepared from olive oil solid wastes by treatment in different schemes: impregnation with H3PO4 followed by pyrolysis at 300–700 °C, by steam pyrolysis at 600–700 °C, or by conventional steam activation at 850 °C. Porosity characteristics were determined by analysis of nitrogen adsorption isotherms, and carbons of widely different properties and surface pH values were obtained. Decomposition of H2O2 in dilute unbuffered solution was followed by measuring evolved oxygen volumetrically. First‐order kinetics was followed, and the catalytic rate coefficients were evaluated. The carbons tested showed appreciable activity where evolved oxygen attained ≈10% of the stoichiometric amount in 1 h. The degree of decomposition showed inverse dependence on surface area, pore volume and mean pore dimensions. The chemical nature of the surface, rather than the porosity characteristics, was the principal factor in enhancing the disproportionation of H2O2 on the activated carbon surface.
© 2001 Society of Chemical Industry</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/jctb.481</doi><tpages>9</tpages></addata></record> |
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| ispartof | Journal of chemical technology and biotechnology (1986), 2001-11, Vol.76 (11), p.1132-1140 |
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| subjects | activated carbon Agriculture, rearing and food industries wastes Applied sciences Biological and medical sciences Catalysis Catalysts: preparations and properties Chemistry Exact sciences and technology Food industries Fundamental and applied biological sciences. Psychology General and physical chemistry H2O2 decomposition Pollution porosity surface acidity Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Use and upgrading of agricultural and food by-products. Biotechnology Wastes |
| title | Decomposition of H2O2 on activated carbon obtained from olive stones |
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