Factors affecting the kinetics of methyl orange reduction photosensitized by colloidal CdS

José Peral; Andrew Mills

doi:https://doi.org/10.1016/1010-6030(93)80031-4

Factors affecting the kinetics of methyl orange reduction photosensitized by colloidal CdS

José Peral, Andrew Mills

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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. © 1993.

Original language	English
Pages (from-to)	47-52
Journal	Journal of Photochemistry and Photobiology, A: Chemistry
Volume	73
DOIs	https://doi.org/10.1016/1010-6030(93)80031-4
Publication status	Published - 15 Jun 1993

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title = "Factors affecting the kinetics of methyl orange reduction photosensitized by colloidal CdS",

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. {\textcopyright} 1993.",

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AU - Peral, José

AU - Mills, Andrew

PY - 1993/6/15

Y1 - 1993/6/15

N2 - 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. © 1993.

AB - 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. © 1993.

U2 - https://doi.org/10.1016/1010-6030(93)80031-4

DO - https://doi.org/10.1016/1010-6030(93)80031-4

M3 - Article

VL - 73

SP - 47

EP - 52

ER -

Factors affecting the kinetics of methyl orange reduction photosensitized by colloidal CdS

Abstract

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