期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 2, 期 7, 页码 527-530出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/S1388-2481(00)00078-3
关键词
photoreduction; charge transfer; ultraviolet irradiation; interfacial reduction kinetics
A new pathway is described for the photocatalytic reduction of metal ions in organic-loaded aqueous TiO2 suspensions. Thus, formate ions act as interfacial anchors to initially sequester Zn(II) and Cd(II) ions onto the TiO2 particle surfaces. Subsequent UV illumination of the suspensions results in the facile photoreduction of these metal ions. In the absence of formate, the metal ions show little proclivity either to adsorb on the TiO2 particle surfaces or to undergo photoreduction. (C) 2000 Elsevier Science S.A. All rights reserved.
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