Effects of operational parameters on decolorisation of C.I. Reactive Black 5 in UV/TiO(2) system
This study utilises a UV/TiO(2) system to decolorise C.I. Reactive Black 5 (RB5). The effects of TiO(2) dosage, pH, RB5 concentration and light power on the decolorisation efficiency using the UV/TiO(2) system were determined. IO(4)(-) was employed as an oxidant to increase the photodegradation effi...
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| Veröffentlicht in: | Water science and technology 2011, Vol.63 (5), p.1032-1036 |
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| creator | Wu, C H Kuo, C Y Hong, P K A |
| description | This study utilises a UV/TiO(2) system to decolorise C.I. Reactive Black 5 (RB5). The effects of TiO(2) dosage, pH, RB5 concentration and light power on the decolorisation efficiency using the UV/TiO(2) system were determined. IO(4)(-) was employed as an oxidant to increase the photodegradation efficiency of UV/TiO(2). The decolorisation rate constants (k) of RB5 in the UV/TiO(2) system are consistent with pseudo-first-order kinetics. The k values of 0.1, 0.5, 1.0 and 2.0 g/l TiO(2) were 0.53, 0.52, 0.69 and 0.68 h(-1), respectively. The rate constant increases with decreasing pH from 10 to 4. The decolorisation rate approximates linear relationship with RB5 concentration, as given by k=1.05[1/RB5](0.98); it varies nonlinearly with light power, as given by k=0.178[power](0.63). The experimental results reveal that the rate of decolorisation obtained using UV/TiO(2)/IO(4)(-) exceeds that obtained using UV/TiO(2). |
| doi_str_mv | 10.2166/wst.2011.286 |
| format | Article |
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Reactive Black 5 in UV/TiO(2) system</title><source>MEDLINE</source><source>Free E-Journal (出版社公開部分のみ）</source><creator>Wu, C H ; Kuo, C Y ; Hong, P K A</creator><creatorcontrib>Wu, C H ; Kuo, C Y ; Hong, P K A</creatorcontrib><description>This study utilises a UV/TiO(2) system to decolorise C.I. Reactive Black 5 (RB5). The effects of TiO(2) dosage, pH, RB5 concentration and light power on the decolorisation efficiency using the UV/TiO(2) system were determined. IO(4)(-) was employed as an oxidant to increase the photodegradation efficiency of UV/TiO(2). The decolorisation rate constants (k) of RB5 in the UV/TiO(2) system are consistent with pseudo-first-order kinetics. The k values of 0.1, 0.5, 1.0 and 2.0 g/l TiO(2) were 0.53, 0.52, 0.69 and 0.68 h(-1), respectively. The rate constant increases with decreasing pH from 10 to 4. The decolorisation rate approximates linear relationship with RB5 concentration, as given by k=1.05[1/RB5](0.98); it varies nonlinearly with light power, as given by k=0.178[power](0.63). The experimental results reveal that the rate of decolorisation obtained using UV/TiO(2)/IO(4)(-) exceeds that obtained using UV/TiO(2).</description><identifier>ISSN: 0273-1223</identifier><identifier>DOI: 10.2166/wst.2011.286</identifier><identifier>PMID: 21411955</identifier><language>eng</language><publisher>England</publisher><subject>Coloring Agents - chemistry ; Hydrogen-Ion Concentration ; Naphthalenesulfonates - chemistry ; Periodic Acid ; Time Factors ; Titanium - chemistry ; Ultraviolet Rays ; Waste Disposal, Fluid - methods ; Water Pollutants, Chemical - chemistry ; Water Purification - methods</subject><ispartof>Water science and technology, 2011, Vol.63 (5), p.1032-1036</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,4009,27902,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21411955$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, C H</creatorcontrib><creatorcontrib>Kuo, C Y</creatorcontrib><creatorcontrib>Hong, P K A</creatorcontrib><title>Effects of operational parameters on decolorisation of C.I. Reactive Black 5 in UV/TiO(2) system</title><title>Water science and technology</title><addtitle>Water Sci Technol</addtitle><description>This study utilises a UV/TiO(2) system to decolorise C.I. Reactive Black 5 (RB5). The effects of TiO(2) dosage, pH, RB5 concentration and light power on the decolorisation efficiency using the UV/TiO(2) system were determined. IO(4)(-) was employed as an oxidant to increase the photodegradation efficiency of UV/TiO(2). The decolorisation rate constants (k) of RB5 in the UV/TiO(2) system are consistent with pseudo-first-order kinetics. The k values of 0.1, 0.5, 1.0 and 2.0 g/l TiO(2) were 0.53, 0.52, 0.69 and 0.68 h(-1), respectively. The rate constant increases with decreasing pH from 10 to 4. The decolorisation rate approximates linear relationship with RB5 concentration, as given by k=1.05[1/RB5](0.98); it varies nonlinearly with light power, as given by k=0.178[power](0.63). The experimental results reveal that the rate of decolorisation obtained using UV/TiO(2)/IO(4)(-) exceeds that obtained using UV/TiO(2).</description><subject>Coloring Agents - chemistry</subject><subject>Hydrogen-Ion Concentration</subject><subject>Naphthalenesulfonates - chemistry</subject><subject>Periodic Acid</subject><subject>Time Factors</subject><subject>Titanium - chemistry</subject><subject>Ultraviolet Rays</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Purification - methods</subject><issn>0273-1223</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo1kD1PwzAURT2AaClszMgbMCT180fijFAVqFSpEiqswXFepEASBzsB9d9ToEx3OEdXupeQC2AxhySZf4Uh5gwg5jo5IlPGUxEB52JCTkN4Y4ylQrITMuEgATKlpuR1WVVoh0BdRV2P3gy160xDe-NNiwP6PeloidY1ztfhF_-4i3gV0yc0dqg_kd41xr5TReuOPr_Mt_Xmmt_QsAsDtmfkuDJNwPNDzsj2frldPEbrzcNqcbuOeqVUZESVYIYGpARWSi6ZFqJSScFsprMSNWhZWSmkFQZEWaQ8TYTRSbYfp3TBxIxc_dX23n2MGIa8rYPFpjEdujHkWqUaQAnYm5cHcyxaLPPe163xu_z_E_ENR5hevA</recordid><startdate>2011</startdate><enddate>2011</enddate><creator>Wu, C H</creator><creator>Kuo, C Y</creator><creator>Hong, P K A</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>2011</creationdate><title>Effects of operational parameters on decolorisation of C.I. Reactive Black 5 in UV/TiO(2) system</title><author>Wu, C H ; Kuo, C Y ; Hong, P K A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p555-a3f6e9ea14410d4240833f56b0c989de8184fc434c3a13db72763a86922358b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Coloring Agents - chemistry</topic><topic>Hydrogen-Ion Concentration</topic><topic>Naphthalenesulfonates - chemistry</topic><topic>Periodic Acid</topic><topic>Time Factors</topic><topic>Titanium - chemistry</topic><topic>Ultraviolet Rays</topic><topic>Waste Disposal, Fluid - methods</topic><topic>Water Pollutants, Chemical - chemistry</topic><topic>Water Purification - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, C H</creatorcontrib><creatorcontrib>Kuo, C Y</creatorcontrib><creatorcontrib>Hong, P K A</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Water science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, C H</au><au>Kuo, C Y</au><au>Hong, P K A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of operational parameters on decolorisation of C.I. Reactive Black 5 in UV/TiO(2) system</atitle><jtitle>Water science and technology</jtitle><addtitle>Water Sci Technol</addtitle><date>2011</date><risdate>2011</risdate><volume>63</volume><issue>5</issue><spage>1032</spage><epage>1036</epage><pages>1032-1036</pages><issn>0273-1223</issn><abstract>This study utilises a UV/TiO(2) system to decolorise C.I. Reactive Black 5 (RB5). The effects of TiO(2) dosage, pH, RB5 concentration and light power on the decolorisation efficiency using the UV/TiO(2) system were determined. IO(4)(-) was employed as an oxidant to increase the photodegradation efficiency of UV/TiO(2). The decolorisation rate constants (k) of RB5 in the UV/TiO(2) system are consistent with pseudo-first-order kinetics. The k values of 0.1, 0.5, 1.0 and 2.0 g/l TiO(2) were 0.53, 0.52, 0.69 and 0.68 h(-1), respectively. The rate constant increases with decreasing pH from 10 to 4. The decolorisation rate approximates linear relationship with RB5 concentration, as given by k=1.05[1/RB5](0.98); it varies nonlinearly with light power, as given by k=0.178[power](0.63). The experimental results reveal that the rate of decolorisation obtained using UV/TiO(2)/IO(4)(-) exceeds that obtained using UV/TiO(2).</abstract><cop>England</cop><pmid>21411955</pmid><doi>10.2166/wst.2011.286</doi><tpages>5</tpages></addata></record> |
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| ispartof | Water science and technology, 2011, Vol.63 (5), p.1032-1036 |
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| source | MEDLINE; Free E-Journal (出版社公開部分のみ） |
| subjects | Coloring Agents - chemistry Hydrogen-Ion Concentration Naphthalenesulfonates - chemistry Periodic Acid Time Factors Titanium - chemistry Ultraviolet Rays Waste Disposal, Fluid - methods Water Pollutants, Chemical - chemistry Water Purification - methods |
| title | Effects of operational parameters on decolorisation of C.I. Reactive Black 5 in UV/TiO(2) system |
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