Stability of ZnO particles in aqueous suspensions under UV illumination

X. Domènech, A. Prieto

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The effect of UV illumination on the stability of ZnO particles in aqueous suspensions is investigated. The quantity of ZnO photodecomposed has been determined by measuring polarographically the resulting Zn(II) concentration in solution at different irradiation times, pH, and mass of semiconductor in suspension. The effect of different hole scavengers added to the solution in order to increase the stability of the semiconductor is also analyzed. Finally, some electrochemical measurements have been carried out with the aim to estimate the electron energy levels in the semiconductor particle under irradiation. © 1986 American Chemical Society.
Original languageEnglish
Pages (from-to)1123-1126
JournalJournal of Physical Chemistry
Issue number6
Publication statusPublished - 1 Dec 1986


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