International Scholarly Research Notices

Review Article

An Overview on the Photocatalytic Activity of Nano-Doped- in the Degradation of Organic Pollutants

Effect of dopant amount on the photocatalytic activity of nano-doped-TiO₂ in the photocatalytic degradation of various organic pollutants.


Type of dopant	Doped TiO₂ preparation method	Range of dopant amount (wt%)	Optimum dopant concentration (wt%)	Organic pollutant	Initial reactant concentration (mg/L)	Light source	Irradiation time (h)	Degradation efficiency (%)	Reference

Fe	Sol gel	0.0–1.0	0.500	Methyl orange	20.0	UV-vis	3.0	99.7	[46]
	Hydrothermal	0.00–0.12	0.090	XRG	100.0	UV	7.0	42	[50]
	Controlled hydrolysis	0.00–0.20	0.200	Methyl orange	20.0	UV	6.0	72	[53]
	Co-precipitation	0.0–10..0	0.017	Phenol	18.8	Visible	3.1	20	[55]
	Hydrothermal	0.0–5.0	0.001	Methylene blue	100.0	UV	1.0	72	[51]
Pt	Impregnation	0.0–1.6	0.800	Acid green 16	122.0	UV	1.0	94	[57]
Pt	Photochemical reduction	0.0–3.0	1.500	Methyl orange	20.0	UV	0.5	88	[58]
Pd	Impregnation	0.0–2.0	0.050	Acid green 16	122.0	UV	1.0	80	[57]
Au	Impregnation	0.0–1.6	0.800	Acid green 16	122.0	UV	1.0	98	[57]
S	Hydrothermal	0.0–2.0	0.012	Methyl orange	20.0	UV	0.7	96	[79]
Ce	Hydrothermal	0.0–5.0	0.017	Rhodamine B	24.0	UV	2.0	90	[62]