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Semiconductor-assisted Photocatalytic Degradation of Reactive Dyes in Aqueous Solution by Carlos A.K. Gouvêa; Fernando Wypych; Sandra G. Moraes; Nelson Durán; Noemi Nagata; Patricio Peralta-Zamora is a Environmental Science article available to read on EtoBox.
What is Semiconductor-assisted Photocatalytic Degradation of Reactive Dyes in Aqueous Solution about?
This work reports the semiconductor-assisted photochemical degradation of reactive dyes. In an oxygenated-UV-ZnO system almost total decolorization of Remazol Brilliant Blue R, Remazol Black B, Reactive Blue 221 and Reactive Blue 222 was observed in reaction times of about 60 min. Extending the photochemical treatment up to 120 min, mineralization higher than 80% for all the dyes was observed. During the same period, the residual acute toxicity was signi®cantly reduced only for Remazol Black B. A systematic optimization study carried out by factorial design showed that for the reactive dyes tested, the ZnO semiconductor exhibits a better eciency than that observed with anatase TiO 2 . A synergistic eect in the coupled TiO 2 ±ZnO system was not observed.
Who reads Semiconductor-assisted Photocatalytic Degradation of Reactive Dyes in Aqueous Solution?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Carlos A.K. Gouvêa; Fernando Wypych; Sandra G. Moraes; Nelson Durán; Noemi Nagata; Patricio Peralta-Zamora
- Publisher
- Elsevier BV
- Published
- 2000
- Language
- EN
- Field
- Environmental Science (Physical Sciences)