Kinetic Peculiarities of Redox Reactions Sensitized by Colloidal CdS under Steady-State Irradiation. The Effect of Adsorption-Desorption Processes on the Reaction Full article
Journal |
Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171 |
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Output data | Year: 1995, Volume: 44, Number: 2, Pages: 236-246 Pages count : 11 DOI: 10.1007/BF00702128 | ||
Tags | adsorption, cadmium sulfide, colloid, kinetics, photocatalyst, surfactant | ||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 93-03-4816 |
Abstract:
Photoreduction of Methyl Orange dye (MOr) by sodium sulfide was studied under steady-state photolysis (λ = 365 nm). The reaction was sensitized by the CdS colloid with the characteristic ∼5-nm particle size. The quantum yield of the reaction is independent of the light intensity when the latter is less than 5 mW cm−2. The form of the dependence of the initial quantum yield of the reaction on [MOr] coincides qualitatively with the adsorption isotherm of the dye on the CdS surface. The reaction kinetics under steady-state irradiation were analyzed. The kinetics in solution as a whole are shown to be adequate to those on a single colloidal particle. On the basis of the experimental data, two types of surfaces of the colloidal particles are suggested (“open” and “covered” with macromolecules of a colloid stabilizer), which significantly differ in the rate at which they establish an adsorption-desorption equilibrium with the solution.
Cite:
Martʹyanov I.N.
, Savinov E.N.
, Parmon V.N.
Kinetic Peculiarities of Redox Reactions Sensitized by Colloidal CdS under Steady-State Irradiation. The Effect of Adsorption-Desorption Processes on the Reaction
Russian Chemical Bulletin. 1995. V.44. N2. P.236-246. DOI: 10.1007/BF00702128 WOS Scopus РИНЦ
Kinetic Peculiarities of Redox Reactions Sensitized by Colloidal CdS under Steady-State Irradiation. The Effect of Adsorption-Desorption Processes on the Reaction
Russian Chemical Bulletin. 1995. V.44. N2. P.236-246. DOI: 10.1007/BF00702128 WOS Scopus РИНЦ
Original:
Мартьянов И.Н.
, Савинов Е.Н.
, Пармон В.Н.
Кинетические особенности окислительно-восстановительных реакций, сенсибилизированных коллоидом CdS, в условиях стационарного облучения. Влияние адсорбционно-десорбционных процессов на ход реакции
Известия Академии наук. Серия химическая. 1995. №2. С.244-254. РИНЦ
Кинетические особенности окислительно-восстановительных реакций, сенсибилизированных коллоидом CdS, в условиях стационарного облучения. Влияние адсорбционно-десорбционных процессов на ход реакции
Известия Академии наук. Серия химическая. 1995. №2. С.244-254. РИНЦ
Dates:
Submitted: | Feb 3, 1994 |
Published print: | Feb 1, 1995 |
Identifiers:
Web of science | WOS:A1995RG57500004 |
Scopus | 2-s2.0-21844503188 |
Elibrary | 19003871 |
OpenAlex | W1991279097 |