Fate of coagulant species and conformational effects during the aggregation of a model of a humic substance with Al13 polycations
A model of a humic substance (MHS) obtained from auto-oxidation of catechol and glycine, was aggregated at pH 6 and 8 with Al(13) polycations. The fate of Al(13) coagulant species upon association with MHS functional groups was studied using solid state (27)Al Magic-angle spinning (MAS) NMR and CP-M...
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| Veröffentlicht in: | Water research (Oxford) 2006-06, Vol.40 (10), p.1965-1974 |
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| container_end_page | 1974 |
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| container_issue | 10 |
| container_start_page | 1965 |
| container_title | Water research (Oxford) |
| container_volume | 40 |
| creator | Kazpard, V Lartiges, B.S Frochot, C d'Espinose de la Caillerie, J.B Viriot, M.L Portal, J.M Gorner, T Bersillon, J.L |
| description | A model of a humic substance (MHS) obtained from auto-oxidation of catechol and glycine, was aggregated at pH 6 and 8 with Al(13) polycations. The fate of Al(13) coagulant species upon association with MHS functional groups was studied using solid state (27)Al Magic-angle spinning (MAS) NMR and CP-MAS (13)C NMR. Electrophoretic measurements and steady-state fluorescence spectroscopy with pyrene as a fluoroprobe, were combined to investigate structural re-organization of humic material with aluminum concentration. MAS (27)Al NMR revealed that the coagulant species are Al(13) polycations or oligomers of Al(13) units at both pHs. CP MAS (13)C spectra indicated that, at low Al concentration, hydrolyzed aluminum species bind selectively to carboxylic groups at pH 6 and to phenolic moieties at pH 8. At higher coagulant concentrations, the remaining functional groups also interact with hydrolyzed Al to yield similar CP MAS (13)C spectra in the optimum concentration range. Negative values of electrophoretic mobility were obtained at optimum coagulant concentrations even though an overall charge balance was achieved between MHS anionic charge and Al(13) cationic charge at pH 6. The polarity-sensitive fluorescence of pyrene revealed that the interaction of Al(13) coagulant species with MHS functional groups induces the formation of intramolecular hydrophobic microenvironments. Such structural changes were reversed upon further addition of Al(13) polycations. |
| doi_str_mv | 10.1016/j.watres.2006.03.014 |
| format | Article |
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The fate of Al(13) coagulant species upon association with MHS functional groups was studied using solid state (27)Al Magic-angle spinning (MAS) NMR and CP-MAS (13)C NMR. Electrophoretic measurements and steady-state fluorescence spectroscopy with pyrene as a fluoroprobe, were combined to investigate structural re-organization of humic material with aluminum concentration. MAS (27)Al NMR revealed that the coagulant species are Al(13) polycations or oligomers of Al(13) units at both pHs. CP MAS (13)C spectra indicated that, at low Al concentration, hydrolyzed aluminum species bind selectively to carboxylic groups at pH 6 and to phenolic moieties at pH 8. At higher coagulant concentrations, the remaining functional groups also interact with hydrolyzed Al to yield similar CP MAS (13)C spectra in the optimum concentration range. Negative values of electrophoretic mobility were obtained at optimum coagulant concentrations even though an overall charge balance was achieved between MHS anionic charge and Al(13) cationic charge at pH 6. The polarity-sensitive fluorescence of pyrene revealed that the interaction of Al(13) coagulant species with MHS functional groups induces the formation of intramolecular hydrophobic microenvironments. Such structural changes were reversed upon further addition of Al(13) polycations.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2006.03.014</identifier><identifier>PMID: 16678232</identifier><identifier>CODEN: WATRAG</identifier><language>eng</language><publisher>Oxford: Elsevier Science</publisher><subject>aluminum ; Aluminum Compounds - chemistry ; Applied sciences ; catechol ; cations ; coagulants ; coagulation ; drinking water ; Electrophoresis ; Environmental Engineering ; Environmental Sciences ; Exact sciences and technology ; fluorescence ; glycine (amino acid) ; humic substances ; Humic Substances - analysis ; Hydrogen-Ion Concentration ; hydrolysis ; hydrophobicity ; Magnetic Resonance Spectroscopy ; nuclear magnetic resonance spectroscopy ; organic matter ; Other industrial wastes. Sewage sludge ; Pollution ; Polyamines - chemistry ; provenance ; river water ; simulation models ; soil aggregates ; spectroscopy ; Wastes ; Water Pollutants, Chemical - analysis ; Water Purification - methods ; water treatment ; Water treatment and pollution</subject><ispartof>Water research (Oxford), 2006-06, Vol.40 (10), p.1965-1974</ispartof><rights>2006 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3544-a6e98077623841521c04b2a60b922a11232fe06622b146d8f5f553bb29fe0d113</citedby><cites>FETCH-LOGICAL-c3544-a6e98077623841521c04b2a60b922a11232fe06622b146d8f5f553bb29fe0d113</cites><orcidid>0000-0002-7659-3864 ; 0000-0002-6722-053X ; 0000-0002-2463-6877</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17788083$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16678232$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-02265622$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Kazpard, V</creatorcontrib><creatorcontrib>Lartiges, B.S</creatorcontrib><creatorcontrib>Frochot, C</creatorcontrib><creatorcontrib>d'Espinose de la Caillerie, J.B</creatorcontrib><creatorcontrib>Viriot, M.L</creatorcontrib><creatorcontrib>Portal, J.M</creatorcontrib><creatorcontrib>Gorner, T</creatorcontrib><creatorcontrib>Bersillon, J.L</creatorcontrib><title>Fate of coagulant species and conformational effects during the aggregation of a model of a humic substance with Al13 polycations</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>A model of a humic substance (MHS) obtained from auto-oxidation of catechol and glycine, was aggregated at pH 6 and 8 with Al(13) polycations. The fate of Al(13) coagulant species upon association with MHS functional groups was studied using solid state (27)Al Magic-angle spinning (MAS) NMR and CP-MAS (13)C NMR. Electrophoretic measurements and steady-state fluorescence spectroscopy with pyrene as a fluoroprobe, were combined to investigate structural re-organization of humic material with aluminum concentration. MAS (27)Al NMR revealed that the coagulant species are Al(13) polycations or oligomers of Al(13) units at both pHs. CP MAS (13)C spectra indicated that, at low Al concentration, hydrolyzed aluminum species bind selectively to carboxylic groups at pH 6 and to phenolic moieties at pH 8. At higher coagulant concentrations, the remaining functional groups also interact with hydrolyzed Al to yield similar CP MAS (13)C spectra in the optimum concentration range. Negative values of electrophoretic mobility were obtained at optimum coagulant concentrations even though an overall charge balance was achieved between MHS anionic charge and Al(13) cationic charge at pH 6. The polarity-sensitive fluorescence of pyrene revealed that the interaction of Al(13) coagulant species with MHS functional groups induces the formation of intramolecular hydrophobic microenvironments. Such structural changes were reversed upon further addition of Al(13) polycations.</description><subject>aluminum</subject><subject>Aluminum Compounds - chemistry</subject><subject>Applied sciences</subject><subject>catechol</subject><subject>cations</subject><subject>coagulants</subject><subject>coagulation</subject><subject>drinking water</subject><subject>Electrophoresis</subject><subject>Environmental Engineering</subject><subject>Environmental Sciences</subject><subject>Exact sciences and technology</subject><subject>fluorescence</subject><subject>glycine (amino acid)</subject><subject>humic substances</subject><subject>Humic Substances - analysis</subject><subject>Hydrogen-Ion Concentration</subject><subject>hydrolysis</subject><subject>hydrophobicity</subject><subject>Magnetic Resonance Spectroscopy</subject><subject>nuclear magnetic resonance spectroscopy</subject><subject>organic matter</subject><subject>Other industrial wastes. Sewage sludge</subject><subject>Pollution</subject><subject>Polyamines - chemistry</subject><subject>provenance</subject><subject>river water</subject><subject>simulation models</subject><subject>soil aggregates</subject><subject>spectroscopy</subject><subject>Wastes</subject><subject>Water Pollutants, Chemical - analysis</subject><subject>Water Purification - methods</subject><subject>water treatment</subject><subject>Water treatment and pollution</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkE1v1DAQQC0EokvhHyDwhQOHhPFHHOe4qlqKtBIH6NmaOHY2q3ys7ISqR_45TrOiJ1uj90aaR8hHBjkDpr6d8kecg4s5B1A5iByYfEV2TJdVxqXUr8kOQIqMiUJekXcxngCAc1G9JVdMqVJzwXfk7x3Ojk6e2gnbpcdxpvHsbOcixbFJ09FPYcC5m0bsqfPe2TnSZgnd2NL56Ci2bXDtM7CuQTpMjeu373EZOkvjUscZR-voYzcf6b5ngp6n_sk-S_E9eeOxj-7D5b0mD3e3v2_us8PP7z9u9ofMpgNkhspVGspScaElKzizIGuOCuqKc2QsXeMdKMV5zaRqtC98UYi65lUaN4yJa_J123vE3pxDN2B4MhN25n5_MOssxVFF8v-srNxYG6YYg_P_BQZmrW9OZqtv1voGhEn1k_Zp085LPbjmRbrkTsCXC4DRYu9DytLFF64stQYtEvd54zxOBtuQmIdfHJgABroAJcU_h3mX_Q</recordid><startdate>200606</startdate><enddate>200606</enddate><creator>Kazpard, V</creator><creator>Lartiges, B.S</creator><creator>Frochot, C</creator><creator>d'Espinose de la Caillerie, J.B</creator><creator>Viriot, M.L</creator><creator>Portal, J.M</creator><creator>Gorner, T</creator><creator>Bersillon, J.L</creator><general>Elsevier Science</general><general>IWA Publishing/Elsevier</general><scope>FBQ</scope><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>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-7659-3864</orcidid><orcidid>https://orcid.org/0000-0002-6722-053X</orcidid><orcidid>https://orcid.org/0000-0002-2463-6877</orcidid></search><sort><creationdate>200606</creationdate><title>Fate of coagulant species and conformational effects during the aggregation of a model of a humic substance with Al13 polycations</title><author>Kazpard, V ; Lartiges, B.S ; Frochot, C ; d'Espinose de la Caillerie, J.B ; Viriot, M.L ; Portal, J.M ; Gorner, T ; Bersillon, J.L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3544-a6e98077623841521c04b2a60b922a11232fe06622b146d8f5f553bb29fe0d113</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>aluminum</topic><topic>Aluminum Compounds - chemistry</topic><topic>Applied sciences</topic><topic>catechol</topic><topic>cations</topic><topic>coagulants</topic><topic>coagulation</topic><topic>drinking water</topic><topic>Electrophoresis</topic><topic>Environmental Engineering</topic><topic>Environmental Sciences</topic><topic>Exact sciences and technology</topic><topic>fluorescence</topic><topic>glycine (amino acid)</topic><topic>humic substances</topic><topic>Humic Substances - analysis</topic><topic>Hydrogen-Ion Concentration</topic><topic>hydrolysis</topic><topic>hydrophobicity</topic><topic>Magnetic Resonance Spectroscopy</topic><topic>nuclear magnetic resonance spectroscopy</topic><topic>organic matter</topic><topic>Other industrial wastes. Sewage sludge</topic><topic>Pollution</topic><topic>Polyamines - chemistry</topic><topic>provenance</topic><topic>river water</topic><topic>simulation models</topic><topic>soil aggregates</topic><topic>spectroscopy</topic><topic>Wastes</topic><topic>Water Pollutants, Chemical - analysis</topic><topic>Water Purification - methods</topic><topic>water treatment</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kazpard, V</creatorcontrib><creatorcontrib>Lartiges, B.S</creatorcontrib><creatorcontrib>Frochot, C</creatorcontrib><creatorcontrib>d'Espinose de la Caillerie, J.B</creatorcontrib><creatorcontrib>Viriot, M.L</creatorcontrib><creatorcontrib>Portal, J.M</creatorcontrib><creatorcontrib>Gorner, T</creatorcontrib><creatorcontrib>Bersillon, J.L</creatorcontrib><collection>AGRIS</collection><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>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kazpard, V</au><au>Lartiges, B.S</au><au>Frochot, C</au><au>d'Espinose de la Caillerie, J.B</au><au>Viriot, M.L</au><au>Portal, J.M</au><au>Gorner, T</au><au>Bersillon, J.L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fate of coagulant species and conformational effects during the aggregation of a model of a humic substance with Al13 polycations</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2006-06</date><risdate>2006</risdate><volume>40</volume><issue>10</issue><spage>1965</spage><epage>1974</epage><pages>1965-1974</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><coden>WATRAG</coden><abstract>A model of a humic substance (MHS) obtained from auto-oxidation of catechol and glycine, was aggregated at pH 6 and 8 with Al(13) polycations. The fate of Al(13) coagulant species upon association with MHS functional groups was studied using solid state (27)Al Magic-angle spinning (MAS) NMR and CP-MAS (13)C NMR. Electrophoretic measurements and steady-state fluorescence spectroscopy with pyrene as a fluoroprobe, were combined to investigate structural re-organization of humic material with aluminum concentration. MAS (27)Al NMR revealed that the coagulant species are Al(13) polycations or oligomers of Al(13) units at both pHs. CP MAS (13)C spectra indicated that, at low Al concentration, hydrolyzed aluminum species bind selectively to carboxylic groups at pH 6 and to phenolic moieties at pH 8. At higher coagulant concentrations, the remaining functional groups also interact with hydrolyzed Al to yield similar CP MAS (13)C spectra in the optimum concentration range. Negative values of electrophoretic mobility were obtained at optimum coagulant concentrations even though an overall charge balance was achieved between MHS anionic charge and Al(13) cationic charge at pH 6. The polarity-sensitive fluorescence of pyrene revealed that the interaction of Al(13) coagulant species with MHS functional groups induces the formation of intramolecular hydrophobic microenvironments. Such structural changes were reversed upon further addition of Al(13) polycations.</abstract><cop>Oxford</cop><pub>Elsevier Science</pub><pmid>16678232</pmid><doi>10.1016/j.watres.2006.03.014</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-7659-3864</orcidid><orcidid>https://orcid.org/0000-0002-6722-053X</orcidid><orcidid>https://orcid.org/0000-0002-2463-6877</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | aluminum Aluminum Compounds - chemistry Applied sciences catechol cations coagulants coagulation drinking water Electrophoresis Environmental Engineering Environmental Sciences Exact sciences and technology fluorescence glycine (amino acid) humic substances Humic Substances - analysis Hydrogen-Ion Concentration hydrolysis hydrophobicity Magnetic Resonance Spectroscopy nuclear magnetic resonance spectroscopy organic matter Other industrial wastes. Sewage sludge Pollution Polyamines - chemistry provenance river water simulation models soil aggregates spectroscopy Wastes Water Pollutants, Chemical - analysis Water Purification - methods water treatment Water treatment and pollution |
| title | Fate of coagulant species and conformational effects during the aggregation of a model of a humic substance with Al13 polycations |
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