Use of Undoped
and Carbon-Doped Calcium Molybdate for degradation of basic Fuchsin: A Green Chemical
Route
Chawda H.S., Bhatt J., Rathore R., Ameta S.C. and Ameta R.
Res. J. Chem. Environ; Vol. 25(8); 121-128;
doi: https://doi.org/10.25303/258rjce121128; (2021)
Abstract
Calcium molybdate (undoped and carbon-doped) has been used as photocatalyst for
the degradation of basic fuchsin. Calcium molybdate is a ternary photocatalyst.
The reaction was monitored spectrophotometrically.
The effect of various operating parameters on rate of degradation was observed such
as pH, concentration of dye, amount of semiconductor and light intensity. Optimum
conditions were: pH = 9.0, concentration of basic fuchsin = 4.00 × 10−4 M, amount
of CaMoO4 = 0.08 g and light intensity = 50.0 mWcm–2. A tentative mechanism for
the photocatalytic degradation of basic fuchsin has been proposed which involves
hydroxyl radicals as the oxidant. 2% C-doped was found to show better photocatalytic
performance than undoped, 1 and 3% C-doped samples.
