Sonochemical oxidation of arsenite in aqueous phase
The objective of this research is to assess critically the experimental rate data for sonochemical oxidation of arsenite [As(III)] at different frequencies and powers in the aqueous phase. The oxidative conversion of As(III) into arsenate [As(V)] was >90% in the range of 283 to 450 kHz. With...
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| Language: | en |
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IOP Publishing
2011
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| Online Access: | http://eprints.um.edu.my/9191/1/Sonochemical_oxidation_of_arsenite_in_aqueous_phase.pdf http://eprints.um.edu.my/9191/ http://www.scopus.com/inward/record.url?eid=2-s2.0-79960579911&partnerID=40&md5=709d3bdb6c8453ffdc4a19283df83bc5 http://adsabs.harvard.edu/abs/2011JaJAP..50gHE13C |
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| author | Cui, M. Lee, S. Jang, Min Kweon, B. Jo, H. Khim, J. |
| author_facet | Cui, M. Lee, S. Jang, Min Kweon, B. Jo, H. Khim, J. |
| author_sort | Cui, M. |
| building | UM Library |
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| content_provider | Universiti Malaya |
| content_source | UM Research Repository |
| continent | Asia |
| country | Malaysia |
| description | The objective of this research is to assess critically the experimental rate data for sonochemical oxidation of arsenite [As(III)] at different frequencies and powers in the aqueous phase. The oxidative conversion of As(III) into arsenate [As(V)] was >90% in the range of 283 to 450 kHz. With a power density of 69WL-1, the oxidation of As(III) for 40min at 283kHz showed a second-order rate constant of 7:1 × 102 M-1 s-1, whereas it was 3:8 × 103M-1 s -1 at 450 kHz. As calculated by the calorimetric method, the power transferred into samples was in the range of 7-34.5 W with the two frequencies of 283 or 450 kHz. Approximately 100% oxidation efficiency was obtained with a frequency of 450 kHz and 34.5 W. As the pretreatment process, oxidation by sonication has potential applications to groundwater contaminated with both As(III) and As(V). © 2011 The Japan Society of Applied Physics. |
| format | Article |
| id | my.um.eprints-9191 |
| institution | Universiti Malaya |
| language | en |
| publishDate | 2011 |
| publisher | IOP Publishing |
| record_format | eprints |
| spelling | my.um.eprints-91912019-03-21T04:40:25Z http://eprints.um.edu.my/9191/ Sonochemical oxidation of arsenite in aqueous phase Cui, M. Lee, S. Jang, Min Kweon, B. Jo, H. Khim, J. TA Engineering (General). Civil engineering (General) The objective of this research is to assess critically the experimental rate data for sonochemical oxidation of arsenite [As(III)] at different frequencies and powers in the aqueous phase. The oxidative conversion of As(III) into arsenate [As(V)] was >90% in the range of 283 to 450 kHz. With a power density of 69WL-1, the oxidation of As(III) for 40min at 283kHz showed a second-order rate constant of 7:1 × 102 M-1 s-1, whereas it was 3:8 × 103M-1 s -1 at 450 kHz. As calculated by the calorimetric method, the power transferred into samples was in the range of 7-34.5 W with the two frequencies of 283 or 450 kHz. Approximately 100% oxidation efficiency was obtained with a frequency of 450 kHz and 34.5 W. As the pretreatment process, oxidation by sonication has potential applications to groundwater contaminated with both As(III) and As(V). © 2011 The Japan Society of Applied Physics. IOP Publishing 2011 Article PeerReviewed application/pdf en http://eprints.um.edu.my/9191/1/Sonochemical_oxidation_of_arsenite_in_aqueous_phase.pdf Cui, M. and Lee, S. and Jang, Min and Kweon, B. and Jo, H. and Khim, J. (2011) Sonochemical oxidation of arsenite in aqueous phase. Japanese Journal of Applied Physics, 50 (7 PART). ISSN 0021-4922, DOI https://doi.org/10.1143/JJAP.50.07HE13 <https://doi.org/10.1143/JJAP.50.07HE13>. http://www.scopus.com/inward/record.url?eid=2-s2.0-79960579911&partnerID=40&md5=709d3bdb6c8453ffdc4a19283df83bc5 http://adsabs.harvard.edu/abs/2011JaJAP..50gHE13C 10.1143/JJAP.50.07HE13 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Cui, M. Lee, S. Jang, Min Kweon, B. Jo, H. Khim, J. Sonochemical oxidation of arsenite in aqueous phase |
| title | Sonochemical oxidation of arsenite in aqueous phase |
| title_full | Sonochemical oxidation of arsenite in aqueous phase |
| title_fullStr | Sonochemical oxidation of arsenite in aqueous phase |
| title_full_unstemmed | Sonochemical oxidation of arsenite in aqueous phase |
| title_short | Sonochemical oxidation of arsenite in aqueous phase |
| title_sort | sonochemical oxidation of arsenite in aqueous phase |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.um.edu.my/9191/1/Sonochemical_oxidation_of_arsenite_in_aqueous_phase.pdf http://eprints.um.edu.my/9191/ http://www.scopus.com/inward/record.url?eid=2-s2.0-79960579911&partnerID=40&md5=709d3bdb6c8453ffdc4a19283df83bc5 http://adsabs.harvard.edu/abs/2011JaJAP..50gHE13C |
| url_provider | http://eprints.um.edu.my/ |