Table 1.

Comparative study of the photocatalytic efficiencies of the different photocatalysts.

Catalyst	Dye degraded	Conc. of dye (mg/L−1)	Amount of catalyst (mg/mL)	% Degradation	Degradation time (min)	Source of light	Reference
Chitosan/PANI/Co3O4	Methylene Blue	10	0.3	88	180	UV	[10]
Graphene/ZnS	Methylene Blue	10	0.2	95	180	UV	[29]
PANI/CdO	Methylene Blue	4.8	0.4	97	240	Sunlight	[47]
TiO2	Methylene Blue	5	–	88	120	LED	[27]
PANI/ZnO	Methylene Blue	3.2	0.4	99	300	Sunlight	[52]
PANI/FZNPs	Methylene Blue	3.2	0.25	99.47	300	Sunlight	[53]
AgBr/ZnO	Methylene Blue	10	1	87	240	LED	[54]
PANI/ZnO	Methylene Blue	10	300	82	60	Visible light	[55]
FeOOH-LDO	Methylene Blue	3	35	95	180	Visible light	[56]
PANI/SrTiO3	Methylene Blue	10	0.3	97	90	Visible light	This work