Electrochemical-assisted photodegradation of dye on TiO2 thin films: investigation on the effect of operational parameters
Electrochemical-assisted photodegradation of methyl orange has been investigated using TiO2 thin films. The films were prepared by sol-gel dip-coating method. Several operational parameters to achieve optimum efficiency of this electrochemical-assisted photodegradation system have been tested. Photo...
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| Veröffentlicht in: | Journal of hazardous materials 2005-02, Vol.118 (1-3), p.197-203 |
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| container_title | Journal of hazardous materials |
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| creator | ZAINAL, Zulkarnain CHONG YONG LEE MOHD ZOBIR HUSSEIN KASSIM, Anuar YUSOF, Nor Azah |
| description | Electrochemical-assisted photodegradation of methyl orange has been investigated using TiO2 thin films. The films were prepared by sol-gel dip-coating method. Several operational parameters to achieve optimum efficiency of this electrochemical-assisted photodegradation system have been tested. Photoelectrochemical degradation was studied using different light sources and light intensity. The light sources chosen ranged from ultraviolet to visible light. The effect of agitation of the solution at different speeds has also been studied. Slight improvement of photodegradation rate was observed by applying higher agitation speed. Investigation on the electrode after repeated usages show the electrode can be reused up to 20 times with percentage of deficiency less than 15%. The study on the effect of solution temperature indicated that the activation energy of the methyl orange degradation is 18.63 kJ mol(-1). |
| doi_str_mv | 10.1016/j.jhazmat.2004.11.009 |
| format | Article |
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The films were prepared by sol-gel dip-coating method. Several operational parameters to achieve optimum efficiency of this electrochemical-assisted photodegradation system have been tested. Photoelectrochemical degradation was studied using different light sources and light intensity. The light sources chosen ranged from ultraviolet to visible light. The effect of agitation of the solution at different speeds has also been studied. Slight improvement of photodegradation rate was observed by applying higher agitation speed. Investigation on the electrode after repeated usages show the electrode can be reused up to 20 times with percentage of deficiency less than 15%. 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The films were prepared by sol-gel dip-coating method. Several operational parameters to achieve optimum efficiency of this electrochemical-assisted photodegradation system have been tested. Photoelectrochemical degradation was studied using different light sources and light intensity. The light sources chosen ranged from ultraviolet to visible light. The effect of agitation of the solution at different speeds has also been studied. Slight improvement of photodegradation rate was observed by applying higher agitation speed. Investigation on the electrode after repeated usages show the electrode can be reused up to 20 times with percentage of deficiency less than 15%. The study on the effect of solution temperature indicated that the activation energy of the methyl orange degradation is 18.63 kJ mol(-1).</description><subject>Applied sciences</subject><subject>Azo Compounds - chemistry</subject><subject>Catalysis</subject><subject>Catalytic reactions</subject><subject>Chemical engineering</subject><subject>Chemistry</subject><subject>Coloring Agents - chemistry</subject><subject>Electrochemistry</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Indicators and Reagents - chemistry</subject><subject>Photochemistry</subject><subject>Pollution</subject><subject>Reactors</subject><subject>Theory of reactions, general kinetics. Catalysis. 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Nomenclature, chemical documentation, computer chemistry</topic><topic>Titanium - chemistry</topic><topic>Water Movements</topic><topic>Water Purification - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ZAINAL, Zulkarnain</creatorcontrib><creatorcontrib>CHONG YONG LEE</creatorcontrib><creatorcontrib>MOHD ZOBIR HUSSEIN</creatorcontrib><creatorcontrib>KASSIM, Anuar</creatorcontrib><creatorcontrib>YUSOF, Nor Azah</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>Ceramic Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of hazardous materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ZAINAL, Zulkarnain</au><au>CHONG YONG LEE</au><au>MOHD ZOBIR HUSSEIN</au><au>KASSIM, Anuar</au><au>YUSOF, Nor Azah</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrochemical-assisted photodegradation of dye on TiO2 thin films: investigation on the effect of operational parameters</atitle><jtitle>Journal of hazardous materials</jtitle><addtitle>J Hazard Mater</addtitle><date>2005-02-14</date><risdate>2005</risdate><volume>118</volume><issue>1-3</issue><spage>197</spage><epage>203</epage><pages>197-203</pages><issn>0304-3894</issn><eissn>1873-3336</eissn><coden>JHMAD9</coden><abstract>Electrochemical-assisted photodegradation of methyl orange has been investigated using TiO2 thin films. 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| identifier | ISSN: 0304-3894 |
| ispartof | Journal of hazardous materials, 2005-02, Vol.118 (1-3), p.197-203 |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Azo Compounds - chemistry Catalysis Catalytic reactions Chemical engineering Chemistry Coloring Agents - chemistry Electrochemistry Exact sciences and technology General and physical chemistry Indicators and Reagents - chemistry Photochemistry Pollution Reactors Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Titanium - chemistry Water Movements Water Purification - methods |
| title | Electrochemical-assisted photodegradation of dye on TiO2 thin films: investigation on the effect of operational parameters |
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