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Photocatalytic reduction of some alkali carbonates in the presence of methylene blue

✍ Scribed by Sarita Jain; Geeta Dangi; Jitendra Vardia; Suresh C. Ameta

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
72 KB
Volume
23
Category
Article
ISSN
0363-907X

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✦ Synopsis

The photoreduction of aqueous sodium and potassium carbonates has been carried out in the presence of methylene blue solution (which is a photocatalyst also). The photocatalytic formation of formic acid and formaldehyde were measured spectrophotometrically using Nash reagent. The effect of variation of various parameters like pH, amount of photocatalyst (methylene blue concentration), concentration of Na CO and K CO , light intensity, etc. on the yield of photoproducts was also investigated. A tentative mechanism for this reduction has been proposed.

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