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

Table 5

Effect of silver nitrate concentration.

[AgNO3] × 10^5/M	Methylene blue	Safranine-O
	/sec^−1	/sec^−1
1.0	1.01	1.07
2.0	1.20	1.88
3.0	1.42	2.06
4.0	1.68	2.14
5.0	1.90	2.25
6.0	2.11	3.07

For methylene blue, pH = 5.0; [Methylene Blue] =  mol dm⁻³; [] =  mol dm⁻³; light intensity = 60.0 mW cm⁻². For safranine-O; pH = 4.5; [Safranine-O] =  mol dm⁻³; [] =  mol dm⁻³; light intensity = 60.0 mW cm⁻².