Quantification of radicals generated in a sonicator

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dc.contributor.authorFatoba, Ojo O.
dc.contributor.authorBadmus, Kassim Olasunkanmi
dc.contributor.authorTijani, Jimoh O.
dc.contributor.authorEze, C.P.
dc.date.accessioned2017-12-13T09:27:15Z
dc.date.available2017-12-13T09:27:15Z
dc.date.issued2016
dc.description.abstractThe hydroxyl radical (OH•) is a powerful oxidant produced as a consequence of cavitation in water. It can react nonspecifically in breaking down persistent organic pollutants in water into their mineral form. It can also recombine to form hydrogen peroxide which is very useful in water treatment. In this study, terephthalic acid (TA) and potassium iodide dosimetry were used to quantify and investigate the behaviour of the generated OH radical in a laboratory scale sonicator. The 2-hydroxyl terephthalic acid (HTA) formed during terephthalic acid dosimetry was determined by optical fibre spectrometer. The production rate of HTA served as a means of evaluating and characterizing the OH• generated over given time in a sonicator. The influence of sonicator power intensity, solution pH and irradiation time upon OH• generation were investigated. Approximately 2.2 x 10-9 M s-1 of OH radical was generated during the sonication process. The rate of generation of the OH radicals was established to be independent of the concentration of the initial reactant. Thus, the rate of generation of OH• can be predicted by zero order kinetics in a sonicator.en_US
dc.identifier.citationBadmus, K.O. et al. (2016). Quantification of radicals generated in a sonicator. Analytical and Bioanalytical Chemistry Research, 3(1): 139-147en_US
dc.identifier.issn2383-093X
dc.identifier.urihttp://dx.doi.org/10.22036/abcr.2016.15086
dc.identifier.urihttp://hdl.handle.net/10566/3326
dc.language.isoenen_US
dc.privacy.showsubmitterFALSE
dc.publisherIranian Chemical Societyen_US
dc.rightsThis journal is open access for everything with completely Free-of-Charge publication policy.
dc.status.ispeerreviewedTRUE
dc.subjectHydroxyl radicalen_US
dc.subjectHydrogen peroxideen_US
dc.subjectCavitationen_US
dc.subjectTerephthalic aciden_US
dc.subjectSonicatoren_US
dc.subjectDosimetryen_US
dc.titleQuantification of radicals generated in a sonicatoren_US
dc.typeArticleen_US

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