Solubility and photocorrosion of small CdS particles

M. I. Vučemilović, N. Vukelić, T. Rajh

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

In this work small-particle CdS colloids of approximate diameter 250 Å and below 25 Å were prepared and an increase in solubility product from 7.2 × 10-27 for large particles to about 10-15 for small-particle colloids (d < 25 Å) was found. Moreover, the observed change in the cathodic corrosion potential to a more positive value of -0.7 V (for particle sizes below 25 Å) can be explained in terms of the increase in the solubility of the small particles. Cadmium metal formation in the cathodic corrosion process of small-particle colloids was found only in the presence of a sacrificial hole scavenger (triethanolamine), but hydrogen was produced even upon illumination of pure CdS colloid in water (Φ(H2) = 3.84%).

Original languageEnglish (US)
Pages (from-to)157-167
Number of pages11
JournalJournal of Photochemistry and Photobiology, A: Chemistry
Volume42
Issue number1
DOIs
StatePublished - Mar 1988
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Solubility and photocorrosion of small CdS particles'. Together they form a unique fingerprint.

Cite this