Factors influencing the preparation of supported iron oxide in fluidized-bed crystallization
Our previous work applied a novel supported iron oxyhydroxide (FeOOH) catalyst to effectively treat benzoic acid by hydrogen peroxide. The FeOOH catalyst was prepared via the oxidation of Fe 2+ by H 2O 2 in the acidic condition using a fluidized-bed crystallization reactor. The major components coat...
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| Veröffentlicht in: | Chemosphere (Oxford) 2004-02, Vol.54 (7), p.859-866 |
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| creator | Chou, Shanshan Liao, Chi-Chung Perng, Shwu-Huey Chang, Sheng-Hsin |
| description | Our previous work applied a novel supported iron oxyhydroxide (FeOOH) catalyst to effectively treat benzoic acid by hydrogen peroxide. The FeOOH catalyst was prepared via the oxidation of Fe
2+ by H
2O
2 in the acidic condition using a fluidized-bed crystallization reactor. The major components coated on the surface were identified as amorphous FeOOH and γ-FeOOH.
In terms of the crystallization conditions of FeOOH, some parameters including the operational pH, superficial velocity, specific iron loading, and influent H
2O
2 concentration were investigated to quantify their effects on the crystallization efficiency. All these parameters were found to significantly influence the crystallization efficiency. Two types of FeOOH catalysts were synthesized: FeOOH I was prepared at pH 3.5, and FeOOH II was formed by aging FeOOH I at pH 13. The percentages of surface amorphous FeOOH reduced from 70% to 30% after aging. The FeOOH II catalyst presented a higher reactivity toward H
2O
2 but lower stoichiometric efficiency in oxidizing benzoic acid than FeOOH I, similar to the result of the commercial goethite. Therefore, it is concluded that the crystalline property significantly affects the performance of catalytic oxidation. |
| doi_str_mv | 10.1016/j.chemosphere.2003.09.034 |
| format | Article |
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2+ by H
2O
2 in the acidic condition using a fluidized-bed crystallization reactor. The major components coated on the surface were identified as amorphous FeOOH and γ-FeOOH.
In terms of the crystallization conditions of FeOOH, some parameters including the operational pH, superficial velocity, specific iron loading, and influent H
2O
2 concentration were investigated to quantify their effects on the crystallization efficiency. All these parameters were found to significantly influence the crystallization efficiency. Two types of FeOOH catalysts were synthesized: FeOOH I was prepared at pH 3.5, and FeOOH II was formed by aging FeOOH I at pH 13. The percentages of surface amorphous FeOOH reduced from 70% to 30% after aging. The FeOOH II catalyst presented a higher reactivity toward H
2O
2 but lower stoichiometric efficiency in oxidizing benzoic acid than FeOOH I, similar to the result of the commercial goethite. Therefore, it is concluded that the crystalline property significantly affects the performance of catalytic oxidation.</description><identifier>ISSN: 0045-6535</identifier><identifier>EISSN: 1879-1298</identifier><identifier>DOI: 10.1016/j.chemosphere.2003.09.034</identifier><identifier>PMID: 14637343</identifier><identifier>CODEN: CMSHAF</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; Catalysis ; Catalyst ; Catalysts: preparations and properties ; Chemistry ; Crystallization ; Exact sciences and technology ; Fenton ; Ferric Compounds - chemistry ; Fluidized bed ; General and physical chemistry ; General purification processes ; Hydrogen Peroxide ; Hydrogen-Ion Concentration ; Iron oxide ; Pollution ; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry ; Wastewaters ; Water Purification - methods ; Water treatment and pollution</subject><ispartof>Chemosphere (Oxford), 2004-02, Vol.54 (7), p.859-866</ispartof><rights>2003 Elsevier Ltd</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c403t-658a09b65b2226375980a07d6e0e4f2d28a03ff030027ad9629c36153c971c813</citedby><cites>FETCH-LOGICAL-c403t-658a09b65b2226375980a07d6e0e4f2d28a03ff030027ad9629c36153c971c813</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.chemosphere.2003.09.034$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27922,27923,45993</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15479069$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/14637343$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chou, Shanshan</creatorcontrib><creatorcontrib>Liao, Chi-Chung</creatorcontrib><creatorcontrib>Perng, Shwu-Huey</creatorcontrib><creatorcontrib>Chang, Sheng-Hsin</creatorcontrib><title>Factors influencing the preparation of supported iron oxide in fluidized-bed crystallization</title><title>Chemosphere (Oxford)</title><addtitle>Chemosphere</addtitle><description>Our previous work applied a novel supported iron oxyhydroxide (FeOOH) catalyst to effectively treat benzoic acid by hydrogen peroxide. The FeOOH catalyst was prepared via the oxidation of Fe
2+ by H
2O
2 in the acidic condition using a fluidized-bed crystallization reactor. The major components coated on the surface were identified as amorphous FeOOH and γ-FeOOH.
In terms of the crystallization conditions of FeOOH, some parameters including the operational pH, superficial velocity, specific iron loading, and influent H
2O
2 concentration were investigated to quantify their effects on the crystallization efficiency. All these parameters were found to significantly influence the crystallization efficiency. Two types of FeOOH catalysts were synthesized: FeOOH I was prepared at pH 3.5, and FeOOH II was formed by aging FeOOH I at pH 13. The percentages of surface amorphous FeOOH reduced from 70% to 30% after aging. The FeOOH II catalyst presented a higher reactivity toward H
2O
2 but lower stoichiometric efficiency in oxidizing benzoic acid than FeOOH I, similar to the result of the commercial goethite. Therefore, it is concluded that the crystalline property significantly affects the performance of catalytic oxidation.</description><subject>Applied sciences</subject><subject>Catalysis</subject><subject>Catalyst</subject><subject>Catalysts: preparations and properties</subject><subject>Chemistry</subject><subject>Crystallization</subject><subject>Exact sciences and technology</subject><subject>Fenton</subject><subject>Ferric Compounds - chemistry</subject><subject>Fluidized bed</subject><subject>General and physical chemistry</subject><subject>General purification processes</subject><subject>Hydrogen Peroxide</subject><subject>Hydrogen-Ion Concentration</subject><subject>Iron oxide</subject><subject>Pollution</subject><subject>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</subject><subject>Wastewaters</subject><subject>Water Purification - methods</subject><subject>Water treatment and pollution</subject><issn>0045-6535</issn><issn>1879-1298</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkMtq4zAUQEXp0KSPXyjuorOz50qybGtZQl9QmM3MbkAo0nWj4FiuZJe2Xz9KE0iXXQl0z5Euh5ArCgUFWv1aF2aFGx-HFQYsGAAvQBbAyyMyp00tc8pkc0zmAKXIK8HFjJzGuAZIspAnZEbLite85HPy706b0YeYub7tJuyN65-zcYXZEHDQQY_O95lvszgNgw8j2syF7c2bs5icLEnOug-0-TLNTHiPo-469_EpnpMfre4iXuzPM_L37vbP4iF_-n3_uLh5yk0JfEwbNhrkshJLxlhaTMgGNNS2QsCyZZalMW9b4ACs1lZWTBpeUcGNrKlpKD8jP3fvDsG_TBhHtXHRYNfpHv0UVU2FYMBZAuUONMHHGLBVQ3AbHd4VBbVNq9bqS1q1TatAqpQ2uZf7T6blBu3B3LdMwPUe0NHorg061YwHTpS1hEombrHjMCV5dRhUNC6VR-sCmlFZ776xzn86o537</recordid><startdate>20040201</startdate><enddate>20040201</enddate><creator>Chou, Shanshan</creator><creator>Liao, Chi-Chung</creator><creator>Perng, Shwu-Huey</creator><creator>Chang, Sheng-Hsin</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20040201</creationdate><title>Factors influencing the preparation of supported iron oxide in fluidized-bed crystallization</title><author>Chou, Shanshan ; Liao, Chi-Chung ; Perng, Shwu-Huey ; Chang, Sheng-Hsin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c403t-658a09b65b2226375980a07d6e0e4f2d28a03ff030027ad9629c36153c971c813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Applied sciences</topic><topic>Catalysis</topic><topic>Catalyst</topic><topic>Catalysts: preparations and properties</topic><topic>Chemistry</topic><topic>Crystallization</topic><topic>Exact sciences and technology</topic><topic>Fenton</topic><topic>Ferric Compounds - chemistry</topic><topic>Fluidized bed</topic><topic>General and physical chemistry</topic><topic>General purification processes</topic><topic>Hydrogen Peroxide</topic><topic>Hydrogen-Ion Concentration</topic><topic>Iron oxide</topic><topic>Pollution</topic><topic>Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry</topic><topic>Wastewaters</topic><topic>Water Purification - methods</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chou, Shanshan</creatorcontrib><creatorcontrib>Liao, Chi-Chung</creatorcontrib><creatorcontrib>Perng, Shwu-Huey</creatorcontrib><creatorcontrib>Chang, Sheng-Hsin</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Chemosphere (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chou, Shanshan</au><au>Liao, Chi-Chung</au><au>Perng, Shwu-Huey</au><au>Chang, Sheng-Hsin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Factors influencing the preparation of supported iron oxide in fluidized-bed crystallization</atitle><jtitle>Chemosphere (Oxford)</jtitle><addtitle>Chemosphere</addtitle><date>2004-02-01</date><risdate>2004</risdate><volume>54</volume><issue>7</issue><spage>859</spage><epage>866</epage><pages>859-866</pages><issn>0045-6535</issn><eissn>1879-1298</eissn><coden>CMSHAF</coden><abstract>Our previous work applied a novel supported iron oxyhydroxide (FeOOH) catalyst to effectively treat benzoic acid by hydrogen peroxide. The FeOOH catalyst was prepared via the oxidation of Fe
2+ by H
2O
2 in the acidic condition using a fluidized-bed crystallization reactor. The major components coated on the surface were identified as amorphous FeOOH and γ-FeOOH.
In terms of the crystallization conditions of FeOOH, some parameters including the operational pH, superficial velocity, specific iron loading, and influent H
2O
2 concentration were investigated to quantify their effects on the crystallization efficiency. All these parameters were found to significantly influence the crystallization efficiency. Two types of FeOOH catalysts were synthesized: FeOOH I was prepared at pH 3.5, and FeOOH II was formed by aging FeOOH I at pH 13. The percentages of surface amorphous FeOOH reduced from 70% to 30% after aging. The FeOOH II catalyst presented a higher reactivity toward H
2O
2 but lower stoichiometric efficiency in oxidizing benzoic acid than FeOOH I, similar to the result of the commercial goethite. Therefore, it is concluded that the crystalline property significantly affects the performance of catalytic oxidation.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>14637343</pmid><doi>10.1016/j.chemosphere.2003.09.034</doi><tpages>8</tpages></addata></record> |
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| ispartof | Chemosphere (Oxford), 2004-02, Vol.54 (7), p.859-866 |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Catalysis Catalyst Catalysts: preparations and properties Chemistry Crystallization Exact sciences and technology Fenton Ferric Compounds - chemistry Fluidized bed General and physical chemistry General purification processes Hydrogen Peroxide Hydrogen-Ion Concentration Iron oxide Pollution Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Wastewaters Water Purification - methods Water treatment and pollution |
| title | Factors influencing the preparation of supported iron oxide in fluidized-bed crystallization |
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