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dc.contributor.authorZhang, Shanqing
dc.contributor.authorLi, Lihong
dc.contributor.authorZhao, Huijun
dc.date.accessioned2017-05-03T11:42:59Z
dc.date.available2017-05-03T11:42:59Z
dc.date.issued2009
dc.date.modified2010-06-03T09:26:17Z
dc.identifier.issn0013-936X
dc.identifier.doi10.1021/es901320a
dc.identifier.urihttp://hdl.handle.net/10072/30011
dc.description.abstractA photoelectrochem. probe for rapid detn. of COD is developed using a nanostructured mixed-phase TiO2 photoanode, namely PeCOD probe. A UV-LED light source and a USB mircroelectrochem. station are powered and controlled by a laptop computer, which makes the probe portable for onsite COD analyses. The photoelectrochem. measurement of COD was optimized in terms of light intensity, applied bias, and pH. Under the optimized conditions, the net steady state currents originated from the oxidn. of orgs. were found to be directly proportional to COD concns. A practical detection limit of 0.2 ppm COD and a linear range of 0-120 ppm COD were achieved. The anal. method using the portable PeCOD probe has the advantages of being rapid, low cost, robust, user-friendly, and environmental friendly. It was used to det. the COD of the synthetic samples consisting of K hydrogen phthalate, D-glucose, glutamic acid, glutaric acid, succinic acid, and malonic acid, and real samples from various industries, such as bakery, oil and grease manufacturer, poultry, hotel, fine food factory, and fresh food producer, com. bread manufacturer. Excellent agreement between the proposed method and the conventional COD method (dichromate) was achieved.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_AU
dc.publisherAmerican Chemical Society
dc.publisher.placeUSA
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom7810
dc.relation.ispartofpageto7815
dc.relation.ispartofissue20
dc.relation.ispartofjournalEnvironmental Science and Technology
dc.relation.ispartofvolume43
dc.rights.retentionY
dc.subject.fieldofresearchCatalysis and Mechanisms of Reactions
dc.subject.fieldofresearchNanotechnology not elsewhere classified
dc.subject.fieldofresearchSensor Technology (Chemical aspects)
dc.subject.fieldofresearchcode030601
dc.subject.fieldofresearchcode100799
dc.subject.fieldofresearchcode030107
dc.titleA portable photoelectrochemical probe for rapid determination of chemical oxygen demand in wastewaters
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2009 American Chemical Society. Self-archiving of the author-manuscript version is not yet supported by this publisher. Please refer to the journal link for access to the definitive, published version or contact the authors for more information.
gro.date.issued2009
gro.hasfulltextNo Full Text
gro.griffith.authorZhao, Huijun
gro.griffith.authorZhang, Shanqing
gro.griffith.authorLi, Lihong


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