FACTORS AFFECTING THE KINETICS OF METHYL-ORANGE REDUCTION PHOTOSENSITIZED BY COLLOIDAL CDS

J. Peral, Andrew Mills

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The kinetics of photoreduction of methyl orange by ascorbic acid sensitized by colloidal CdS has been studied. Different experimental factors such a [O2], pH and temperature, as well as the presence of potential competitive species like MV2+ and Cd2+ have been taken as variables in this study. O2 and Cd2+ clearly inhibit the photoreduction but the presence of MV2+ increases the reaction rate. The pH greatly influences the kinetics and temperature (T) has little effect. The results are interpreted using a reaction scheme proposed in earlier papers where dispersions of crystalline CdS were used as the photocatalyst and EDTA as the hole scavenger.
Original languageEnglish
Pages (from-to)47-52
Number of pages6
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume73
Publication statusPublished - 1993

Fingerprint

Dive into the research topics of 'FACTORS AFFECTING THE KINETICS OF METHYL-ORANGE REDUCTION PHOTOSENSITIZED BY COLLOIDAL CDS'. Together they form a unique fingerprint.

Cite this