Degradation of malachite green by a pulsed light/H2O2 process
Pulsed light (PL) is a type of photonic technology characterized by intense short light pulses that enhance the speed of photochemical reactions, and which might be useful as light source in advanced oxidation processes. This work aimed to test PL as light source for the degradation of the dye malac...
Gespeichert in:
| Veröffentlicht in: | Water science and technology 2019-01, Vol.79 (2), p.260-269 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 269 |
|---|---|
| container_issue | 2 |
| container_start_page | 260 |
| container_title | Water science and technology |
| container_volume | 79 |
| creator | Navarro, Patricia Zapata, Jean Pier Gotor, Gemma Gonzalez-Olmos, Rafael Gómez-López, Vicente M. |
| description | Pulsed light (PL) is a type of photonic technology characterized by intense short light pulses that enhance the speed of photochemical reactions, and which might be useful as light source in advanced oxidation processes. This work aimed to test PL as light source for the degradation of the dye malachite green (MG) by combining PL with H2O2. To this end, the effect of dye and H2O2 concentrations and pH on the degradation rate of MG was studied and a degradation pathway was proposed. Dye degradation followed a pseudo-first order kinetics; it increased with low initial dye concentration, high H2O2 concentration and low pH. Complete decolourization was achieved after 35 light pulses (75 J/cm2), with a degradation rate of 0.0710 cm2/J. The degradation was initiated by the attack of hydroxyl radicals to the central carbon of MG generating 4-(dimethylamino)benzophenone (DLBP) followed by the addition of hydroxyl radicals to the non-amino aromatic ring of DLBP and the demethylation of the amino group. Results indicate that PL technology has potential to be implemented to decrease the environmental impact of dyeing industries. |
| doi_str_mv | 10.2166/wst.2019.041 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2314073124</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2314073124</sourcerecordid><originalsourceid>FETCH-LOGICAL-c400t-ec8d6691d3c2e83064a617adef690230723c2414622f6f50debe71f8255424d43</originalsourceid><addsrcrecordid>eNotkEFPAjEUhBujiYje_AFNvLrw3mvpsgcPBlFMSLjouSnbV1gCLLZLDP_eEjzNYSYzmU-IR4QBoTHD39QNCLAagMYr0cOqMkVVKroWPaBSFUikbsVdShsAKJWGnnh541V03nVNu5dtkDu3dfW66ViuIvNeLk_SycNxm9jLbbNad8MZLUgeYltzSvfiJrjsPfxrX3y_T78ms2K--PicvM6LWgN0Bddjb0yFXtXEYwVGO4Ol8xxMBaSgpGxo1IYomDACz0suMYxpNNKkvVZ98XTpzbs_R06d3bTHuM-TlhTq_AXpnHq-pOrYphQ52ENsdi6eLII9A7IZkD0DshmQ-gNrdlaN</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2314073124</pqid></control><display><type>article</type><title>Degradation of malachite green by a pulsed light/H2O2 process</title><source>EZB Electronic Journals Library</source><creator>Navarro, Patricia ; Zapata, Jean Pier ; Gotor, Gemma ; Gonzalez-Olmos, Rafael ; Gómez-López, Vicente M.</creator><creatorcontrib>Navarro, Patricia ; Zapata, Jean Pier ; Gotor, Gemma ; Gonzalez-Olmos, Rafael ; Gómez-López, Vicente M.</creatorcontrib><description>Pulsed light (PL) is a type of photonic technology characterized by intense short light pulses that enhance the speed of photochemical reactions, and which might be useful as light source in advanced oxidation processes. This work aimed to test PL as light source for the degradation of the dye malachite green (MG) by combining PL with H2O2. To this end, the effect of dye and H2O2 concentrations and pH on the degradation rate of MG was studied and a degradation pathway was proposed. Dye degradation followed a pseudo-first order kinetics; it increased with low initial dye concentration, high H2O2 concentration and low pH. Complete decolourization was achieved after 35 light pulses (75 J/cm2), with a degradation rate of 0.0710 cm2/J. The degradation was initiated by the attack of hydroxyl radicals to the central carbon of MG generating 4-(dimethylamino)benzophenone (DLBP) followed by the addition of hydroxyl radicals to the non-amino aromatic ring of DLBP and the demethylation of the amino group. Results indicate that PL technology has potential to be implemented to decrease the environmental impact of dyeing industries.</description><identifier>ISSN: 0273-1223</identifier><identifier>EISSN: 1996-9732</identifier><identifier>DOI: 10.2166/wst.2019.041</identifier><language>eng</language><publisher>London: IWA Publishing</publisher><subject>Aromatic compounds ; Benzophenone ; Chemical engineering ; Color removal ; Decoloring ; Decolorization ; Degradation ; Demethylation ; Dyeing ; Dyes ; Environmental impact ; Food science ; Free radicals ; Hazardous materials ; Hydrogen peroxide ; Hydroxyl radicals ; Industry ; Kinetics ; Light ; Light sources ; Malachite green ; Oxidation ; pH effects ; Photocatalysis ; Photochemical reactions ; Photochemicals ; Photochemistry ; Photodegradation ; Photonics ; Reaction kinetics ; Technology ; Water treatment</subject><ispartof>Water science and technology, 2019-01, Vol.79 (2), p.260-269</ispartof><rights>Copyright IWA Publishing Jan 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c400t-ec8d6691d3c2e83064a617adef690230723c2414622f6f50debe71f8255424d43</citedby><cites>FETCH-LOGICAL-c400t-ec8d6691d3c2e83064a617adef690230723c2414622f6f50debe71f8255424d43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Navarro, Patricia</creatorcontrib><creatorcontrib>Zapata, Jean Pier</creatorcontrib><creatorcontrib>Gotor, Gemma</creatorcontrib><creatorcontrib>Gonzalez-Olmos, Rafael</creatorcontrib><creatorcontrib>Gómez-López, Vicente M.</creatorcontrib><title>Degradation of malachite green by a pulsed light/H2O2 process</title><title>Water science and technology</title><description>Pulsed light (PL) is a type of photonic technology characterized by intense short light pulses that enhance the speed of photochemical reactions, and which might be useful as light source in advanced oxidation processes. This work aimed to test PL as light source for the degradation of the dye malachite green (MG) by combining PL with H2O2. To this end, the effect of dye and H2O2 concentrations and pH on the degradation rate of MG was studied and a degradation pathway was proposed. Dye degradation followed a pseudo-first order kinetics; it increased with low initial dye concentration, high H2O2 concentration and low pH. Complete decolourization was achieved after 35 light pulses (75 J/cm2), with a degradation rate of 0.0710 cm2/J. The degradation was initiated by the attack of hydroxyl radicals to the central carbon of MG generating 4-(dimethylamino)benzophenone (DLBP) followed by the addition of hydroxyl radicals to the non-amino aromatic ring of DLBP and the demethylation of the amino group. Results indicate that PL technology has potential to be implemented to decrease the environmental impact of dyeing industries.</description><subject>Aromatic compounds</subject><subject>Benzophenone</subject><subject>Chemical engineering</subject><subject>Color removal</subject><subject>Decoloring</subject><subject>Decolorization</subject><subject>Degradation</subject><subject>Demethylation</subject><subject>Dyeing</subject><subject>Dyes</subject><subject>Environmental impact</subject><subject>Food science</subject><subject>Free radicals</subject><subject>Hazardous materials</subject><subject>Hydrogen peroxide</subject><subject>Hydroxyl radicals</subject><subject>Industry</subject><subject>Kinetics</subject><subject>Light</subject><subject>Light sources</subject><subject>Malachite green</subject><subject>Oxidation</subject><subject>pH effects</subject><subject>Photocatalysis</subject><subject>Photochemical reactions</subject><subject>Photochemicals</subject><subject>Photochemistry</subject><subject>Photodegradation</subject><subject>Photonics</subject><subject>Reaction kinetics</subject><subject>Technology</subject><subject>Water treatment</subject><issn>0273-1223</issn><issn>1996-9732</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNotkEFPAjEUhBujiYje_AFNvLrw3mvpsgcPBlFMSLjouSnbV1gCLLZLDP_eEjzNYSYzmU-IR4QBoTHD39QNCLAagMYr0cOqMkVVKroWPaBSFUikbsVdShsAKJWGnnh541V03nVNu5dtkDu3dfW66ViuIvNeLk_SycNxm9jLbbNad8MZLUgeYltzSvfiJrjsPfxrX3y_T78ms2K--PicvM6LWgN0Bddjb0yFXtXEYwVGO4Ol8xxMBaSgpGxo1IYomDACz0suMYxpNNKkvVZ98XTpzbs_R06d3bTHuM-TlhTq_AXpnHq-pOrYphQ52ENsdi6eLII9A7IZkD0DshmQ-gNrdlaN</recordid><startdate>20190115</startdate><enddate>20190115</enddate><creator>Navarro, Patricia</creator><creator>Zapata, Jean Pier</creator><creator>Gotor, Gemma</creator><creator>Gonzalez-Olmos, Rafael</creator><creator>Gómez-López, Vicente M.</creator><general>IWA Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QH</scope><scope>7UA</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FE</scope><scope>8FG</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>L.G</scope><scope>L6V</scope><scope>M0S</scope><scope>M1P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope></search><sort><creationdate>20190115</creationdate><title>Degradation of malachite green by a pulsed light/H2O2 process</title><author>Navarro, Patricia ; Zapata, Jean Pier ; Gotor, Gemma ; Gonzalez-Olmos, Rafael ; Gómez-López, Vicente M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c400t-ec8d6691d3c2e83064a617adef690230723c2414622f6f50debe71f8255424d43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Aromatic compounds</topic><topic>Benzophenone</topic><topic>Chemical engineering</topic><topic>Color removal</topic><topic>Decoloring</topic><topic>Decolorization</topic><topic>Degradation</topic><topic>Demethylation</topic><topic>Dyeing</topic><topic>Dyes</topic><topic>Environmental impact</topic><topic>Food science</topic><topic>Free radicals</topic><topic>Hazardous materials</topic><topic>Hydrogen peroxide</topic><topic>Hydroxyl radicals</topic><topic>Industry</topic><topic>Kinetics</topic><topic>Light</topic><topic>Light sources</topic><topic>Malachite green</topic><topic>Oxidation</topic><topic>pH effects</topic><topic>Photocatalysis</topic><topic>Photochemical reactions</topic><topic>Photochemicals</topic><topic>Photochemistry</topic><topic>Photodegradation</topic><topic>Photonics</topic><topic>Reaction kinetics</topic><topic>Technology</topic><topic>Water treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Navarro, Patricia</creatorcontrib><creatorcontrib>Zapata, Jean Pier</creatorcontrib><creatorcontrib>Gotor, Gemma</creatorcontrib><creatorcontrib>Gonzalez-Olmos, Rafael</creatorcontrib><creatorcontrib>Gómez-López, Vicente M.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Databases</collection><collection>Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Engineering Database</collection><collection>ProQuest Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering collection</collection><jtitle>Water science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Navarro, Patricia</au><au>Zapata, Jean Pier</au><au>Gotor, Gemma</au><au>Gonzalez-Olmos, Rafael</au><au>Gómez-López, Vicente M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Degradation of malachite green by a pulsed light/H2O2 process</atitle><jtitle>Water science and technology</jtitle><date>2019-01-15</date><risdate>2019</risdate><volume>79</volume><issue>2</issue><spage>260</spage><epage>269</epage><pages>260-269</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><abstract>Pulsed light (PL) is a type of photonic technology characterized by intense short light pulses that enhance the speed of photochemical reactions, and which might be useful as light source in advanced oxidation processes. This work aimed to test PL as light source for the degradation of the dye malachite green (MG) by combining PL with H2O2. To this end, the effect of dye and H2O2 concentrations and pH on the degradation rate of MG was studied and a degradation pathway was proposed. Dye degradation followed a pseudo-first order kinetics; it increased with low initial dye concentration, high H2O2 concentration and low pH. Complete decolourization was achieved after 35 light pulses (75 J/cm2), with a degradation rate of 0.0710 cm2/J. The degradation was initiated by the attack of hydroxyl radicals to the central carbon of MG generating 4-(dimethylamino)benzophenone (DLBP) followed by the addition of hydroxyl radicals to the non-amino aromatic ring of DLBP and the demethylation of the amino group. Results indicate that PL technology has potential to be implemented to decrease the environmental impact of dyeing industries.</abstract><cop>London</cop><pub>IWA Publishing</pub><doi>10.2166/wst.2019.041</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0273-1223 |
| ispartof | Water science and technology, 2019-01, Vol.79 (2), p.260-269 |
| issn | 0273-1223 1996-9732 |
| language | eng |
| recordid | cdi_proquest_journals_2314073124 |
| source | EZB Electronic Journals Library |
| subjects | Aromatic compounds Benzophenone Chemical engineering Color removal Decoloring Decolorization Degradation Demethylation Dyeing Dyes Environmental impact Food science Free radicals Hazardous materials Hydrogen peroxide Hydroxyl radicals Industry Kinetics Light Light sources Malachite green Oxidation pH effects Photocatalysis Photochemical reactions Photochemicals Photochemistry Photodegradation Photonics Reaction kinetics Technology Water treatment |
| title | Degradation of malachite green by a pulsed light/H2O2 process |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-24T18%3A32%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Degradation%20of%20malachite%20green%20by%20a%20pulsed%20light/H2O2%20process&rft.jtitle=Water%20science%20and%20technology&rft.au=Navarro,%20Patricia&rft.date=2019-01-15&rft.volume=79&rft.issue=2&rft.spage=260&rft.epage=269&rft.pages=260-269&rft.issn=0273-1223&rft.eissn=1996-9732&rft_id=info:doi/10.2166/wst.2019.041&rft_dat=%3Cproquest_cross%3E2314073124%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2314073124&rft_id=info:pmid/&rfr_iscdi=true |