Silver(I) Catalyzed Photochemical Oxidation of Methylene Blue and Safranine-O by Peroxydisulphate: A Green Chemical Approach | Zendy

Ravisha Chhajed | Zendy; Sanyogita Sharma | Zendy; Rakshit Ameta | Zendy; Pinki B. Punjabi | Zendy

Open Access

Silver(I) Catalyzed Photochemical Oxidation of Methylene Blue and Safranine-O by Peroxydisulphate: A Green Chemical Approach

Author(s) -

Ravisha Chhajed,

Sanyogita Sharma,

Rakshit Ameta,

Pinki B. Punjabi

Publication year - 2014

Publication title -

international journal of photochemistry

Language(s) - English

Resource type - Journals

eISSN - 2356-7090

pISSN - 2314-7148

DOI - 10.1155/2014/232475

Subject(s) - methylene blue , photochemistry , chemistry , catalysis , silver nitrate , redox , reaction mechanism , inorganic chemistry , photocatalysis , nuclear chemistry , organic chemistry

In the present investigation, a comparative study of silver(I) catalysed photochemical oxidation of methylene blue (MB) and safranine-O (SO) by peroxydisulphate has been reported. The effect of different parameters, such as pH, concentration of peroxydisulphate, silver nitrate, and light intensity, on the reaction rate has been observed. The progress of the photochemical oxidation was monitored spectrophotometrically. The optimum conditions for photochemical oxidation were achieved. The dyes were completely oxidized and degraded into CO2 and H2O. A tentative mechanism for silver(I) catalyzed photochemical oxidation of these dyes by peroxydisulphate has also been proposed.

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