Photocatalytic removal of Cr(VI) with illuminated TiO2
The effect of dissolved oxygen on the photocatalytic reduction of Cr(VI) with illuminated TiO2 was studied in this work with variation of the solution pH, contact time, and initial Cr(VI) concentration. Oxygen or nitrogen gas was used as a purging gas. Overall, the removal efficiency of Cr(VI) decre...
Gespeichert in:
| Veröffentlicht in: | Desalination and water treatment 2012-08, Vol.46 (1-3), p.375-380 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 380 |
|---|---|
| container_issue | 1-3 |
| container_start_page | 375 |
| container_title | Desalination and water treatment |
| container_volume | 46 |
| creator | Yang, J.K. Lee, S.M. Farrokhi, M. Giahi, O. Shirzad Siboni, M. |
| description | The effect of dissolved oxygen on the photocatalytic reduction of Cr(VI) with illuminated TiO2 was studied in this work with variation of the solution pH, contact time, and initial Cr(VI) concentration. Oxygen or nitrogen gas was used as a purging gas. Overall, the removal efficiency of Cr(VI) decreased as the solution pH increased. The removal of Cr(VI) by UV/TiO2 increased by decreasing the solution pH because of the increased potential difference between the conduction band of TiO2 and Cr(VI)/Cr(III) as well as the anionic-type adsorption of Cr(VI) onto the TiO2 surface. The removal efficiency of Cr(VI) increased in purging of nitrogen gas compared to that of oxygen gas because of less competition between dissolved oxygen and Cr(VI) in the reaction with the electron in the conduction band of TiO2. The reduction pattern was better described by the first-order kinetic model. |
| doi_str_mv | 10.1080/19443994.2012.677564 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_1934071469</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S1944398624197585</els_id><sourcerecordid>1934071469</sourcerecordid><originalsourceid>FETCH-LOGICAL-c359t-58d37b0bfe5220f7eed1b4d42b9ad35d169b828ae96f3bdfc6d05e9d5c3c8a7f3</originalsourceid><addsrcrecordid>eNp9kEtLAzEUhYMoWGr_gYsBEXQxNe9MNoIUH4VCXVS3IZMHTZk2NZkq_fdOmSquvJt7uZxzD_cD4BLBMYIVvEOSUiIlHWOI8JgLwTg9AYPDuiSy4qd_5nMwynkFu2JUMIoHgL8uYxuNbnWzb4MpklvHT90U0ReTdPM-vS2-QrssQtPs1mGjW2eLRZjjC3DmdZPd6NiH4O3pcTF5KWfz5-nkYVYawmRbssoSUcPaO4Yx9MI5i2pqKa6ltoRZxGVd4Uo7yT2prTfcQuakZYaYSgtPhuCqv7tN8WPncqtWcZc2XaRCklAoEOWyU9FeZVLMOTmvtimsddorBNUBkvqBpA6QVA-ps10fj-tsdOOT3piQf72YQygYE53uvte57tPP4JLKJriNcTYkZ1plY_g_6BuyW3j0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1934071469</pqid></control><display><type>article</type><title>Photocatalytic removal of Cr(VI) with illuminated TiO2</title><source>Alma/SFX Local Collection</source><creator>Yang, J.K. ; Lee, S.M. ; Farrokhi, M. ; Giahi, O. ; Shirzad Siboni, M.</creator><creatorcontrib>Yang, J.K. ; Lee, S.M. ; Farrokhi, M. ; Giahi, O. ; Shirzad Siboni, M.</creatorcontrib><description>The effect of dissolved oxygen on the photocatalytic reduction of Cr(VI) with illuminated TiO2 was studied in this work with variation of the solution pH, contact time, and initial Cr(VI) concentration. Oxygen or nitrogen gas was used as a purging gas. Overall, the removal efficiency of Cr(VI) decreased as the solution pH increased. The removal of Cr(VI) by UV/TiO2 increased by decreasing the solution pH because of the increased potential difference between the conduction band of TiO2 and Cr(VI)/Cr(III) as well as the anionic-type adsorption of Cr(VI) onto the TiO2 surface. The removal efficiency of Cr(VI) increased in purging of nitrogen gas compared to that of oxygen gas because of less competition between dissolved oxygen and Cr(VI) in the reaction with the electron in the conduction band of TiO2. The reduction pattern was better described by the first-order kinetic model.</description><identifier>ISSN: 1944-3986</identifier><identifier>ISSN: 1944-3994</identifier><identifier>EISSN: 1944-3986</identifier><identifier>DOI: 10.1080/19443994.2012.677564</identifier><language>eng</language><publisher>L'Aquila: Elsevier Inc</publisher><subject>Anions ; Applied sciences ; Biological competition ; Chromium ; Competition ; Conduction ; Conduction bands ; Cr(VI) ; Dissolved oxygen ; Exact sciences and technology ; Nitrogen ; Oxygen ; pH effects ; Photocatalysis ; Pollution ; Purging ; Reduction ; Removal ; TiO2 ; Titanium dioxide ; Ultraviolet radiation ; Water treatment and pollution</subject><ispartof>Desalination and water treatment, 2012-08, Vol.46 (1-3), p.375-380</ispartof><rights>2012 Elsevier Inc.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright Desalination Publications</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c359t-58d37b0bfe5220f7eed1b4d42b9ad35d169b828ae96f3bdfc6d05e9d5c3c8a7f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26007557$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Yang, J.K.</creatorcontrib><creatorcontrib>Lee, S.M.</creatorcontrib><creatorcontrib>Farrokhi, M.</creatorcontrib><creatorcontrib>Giahi, O.</creatorcontrib><creatorcontrib>Shirzad Siboni, M.</creatorcontrib><title>Photocatalytic removal of Cr(VI) with illuminated TiO2</title><title>Desalination and water treatment</title><description>The effect of dissolved oxygen on the photocatalytic reduction of Cr(VI) with illuminated TiO2 was studied in this work with variation of the solution pH, contact time, and initial Cr(VI) concentration. Oxygen or nitrogen gas was used as a purging gas. Overall, the removal efficiency of Cr(VI) decreased as the solution pH increased. The removal of Cr(VI) by UV/TiO2 increased by decreasing the solution pH because of the increased potential difference between the conduction band of TiO2 and Cr(VI)/Cr(III) as well as the anionic-type adsorption of Cr(VI) onto the TiO2 surface. The removal efficiency of Cr(VI) increased in purging of nitrogen gas compared to that of oxygen gas because of less competition between dissolved oxygen and Cr(VI) in the reaction with the electron in the conduction band of TiO2. The reduction pattern was better described by the first-order kinetic model.</description><subject>Anions</subject><subject>Applied sciences</subject><subject>Biological competition</subject><subject>Chromium</subject><subject>Competition</subject><subject>Conduction</subject><subject>Conduction bands</subject><subject>Cr(VI)</subject><subject>Dissolved oxygen</subject><subject>Exact sciences and technology</subject><subject>Nitrogen</subject><subject>Oxygen</subject><subject>pH effects</subject><subject>Photocatalysis</subject><subject>Pollution</subject><subject>Purging</subject><subject>Reduction</subject><subject>Removal</subject><subject>TiO2</subject><subject>Titanium dioxide</subject><subject>Ultraviolet radiation</subject><subject>Water treatment and pollution</subject><issn>1944-3986</issn><issn>1944-3994</issn><issn>1944-3986</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhYMoWGr_gYsBEXQxNe9MNoIUH4VCXVS3IZMHTZk2NZkq_fdOmSquvJt7uZxzD_cD4BLBMYIVvEOSUiIlHWOI8JgLwTg9AYPDuiSy4qd_5nMwynkFu2JUMIoHgL8uYxuNbnWzb4MpklvHT90U0ReTdPM-vS2-QrssQtPs1mGjW2eLRZjjC3DmdZPd6NiH4O3pcTF5KWfz5-nkYVYawmRbssoSUcPaO4Yx9MI5i2pqKa6ltoRZxGVd4Uo7yT2prTfcQuakZYaYSgtPhuCqv7tN8WPncqtWcZc2XaRCklAoEOWyU9FeZVLMOTmvtimsddorBNUBkvqBpA6QVA-ps10fj-tsdOOT3piQf72YQygYE53uvte57tPP4JLKJriNcTYkZ1plY_g_6BuyW3j0</recordid><startdate>20120801</startdate><enddate>20120801</enddate><creator>Yang, J.K.</creator><creator>Lee, S.M.</creator><creator>Farrokhi, M.</creator><creator>Giahi, O.</creator><creator>Shirzad Siboni, M.</creator><general>Elsevier Inc</general><general>Desalination Publications</general><general>Elsevier Limited</general><scope>6I.</scope><scope>AAFTH</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7QL</scope><scope>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7TN</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>H97</scope><scope>KR7</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope></search><sort><creationdate>20120801</creationdate><title>Photocatalytic removal of Cr(VI) with illuminated TiO2</title><author>Yang, J.K. ; Lee, S.M. ; Farrokhi, M. ; Giahi, O. ; Shirzad Siboni, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c359t-58d37b0bfe5220f7eed1b4d42b9ad35d169b828ae96f3bdfc6d05e9d5c3c8a7f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Anions</topic><topic>Applied sciences</topic><topic>Biological competition</topic><topic>Chromium</topic><topic>Competition</topic><topic>Conduction</topic><topic>Conduction bands</topic><topic>Cr(VI)</topic><topic>Dissolved oxygen</topic><topic>Exact sciences and technology</topic><topic>Nitrogen</topic><topic>Oxygen</topic><topic>pH effects</topic><topic>Photocatalysis</topic><topic>Pollution</topic><topic>Purging</topic><topic>Reduction</topic><topic>Removal</topic><topic>TiO2</topic><topic>Titanium dioxide</topic><topic>Ultraviolet radiation</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, J.K.</creatorcontrib><creatorcontrib>Lee, S.M.</creatorcontrib><creatorcontrib>Farrokhi, M.</creatorcontrib><creatorcontrib>Giahi, O.</creatorcontrib><creatorcontrib>Shirzad Siboni, M.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</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>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Desalination and water treatment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, J.K.</au><au>Lee, S.M.</au><au>Farrokhi, M.</au><au>Giahi, O.</au><au>Shirzad Siboni, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photocatalytic removal of Cr(VI) with illuminated TiO2</atitle><jtitle>Desalination and water treatment</jtitle><date>2012-08-01</date><risdate>2012</risdate><volume>46</volume><issue>1-3</issue><spage>375</spage><epage>380</epage><pages>375-380</pages><issn>1944-3986</issn><issn>1944-3994</issn><eissn>1944-3986</eissn><abstract>The effect of dissolved oxygen on the photocatalytic reduction of Cr(VI) with illuminated TiO2 was studied in this work with variation of the solution pH, contact time, and initial Cr(VI) concentration. Oxygen or nitrogen gas was used as a purging gas. Overall, the removal efficiency of Cr(VI) decreased as the solution pH increased. The removal of Cr(VI) by UV/TiO2 increased by decreasing the solution pH because of the increased potential difference between the conduction band of TiO2 and Cr(VI)/Cr(III) as well as the anionic-type adsorption of Cr(VI) onto the TiO2 surface. The removal efficiency of Cr(VI) increased in purging of nitrogen gas compared to that of oxygen gas because of less competition between dissolved oxygen and Cr(VI) in the reaction with the electron in the conduction band of TiO2. The reduction pattern was better described by the first-order kinetic model.</abstract><cop>L'Aquila</cop><pub>Elsevier Inc</pub><doi>10.1080/19443994.2012.677564</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1944-3986 |
| ispartof | Desalination and water treatment, 2012-08, Vol.46 (1-3), p.375-380 |
| issn | 1944-3986 1944-3994 1944-3986 |
| language | eng |
| recordid | cdi_proquest_journals_1934071469 |
| source | Alma/SFX Local Collection |
| subjects | Anions Applied sciences Biological competition Chromium Competition Conduction Conduction bands Cr(VI) Dissolved oxygen Exact sciences and technology Nitrogen Oxygen pH effects Photocatalysis Pollution Purging Reduction Removal TiO2 Titanium dioxide Ultraviolet radiation Water treatment and pollution |
| title | Photocatalytic removal of Cr(VI) with illuminated TiO2 |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-22T10%3A32%3A58IST&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=Photocatalytic%20removal%20of%20Cr(VI)%20with%20illuminated%20TiO2&rft.jtitle=Desalination%20and%20water%20treatment&rft.au=Yang,%20J.K.&rft.date=2012-08-01&rft.volume=46&rft.issue=1-3&rft.spage=375&rft.epage=380&rft.pages=375-380&rft.issn=1944-3986&rft.eissn=1944-3986&rft_id=info:doi/10.1080/19443994.2012.677564&rft_dat=%3Cproquest_cross%3E1934071469%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=1934071469&rft_id=info:pmid/&rft_els_id=S1944398624197585&rfr_iscdi=true |