An Overview on the Photocatalytic Activity of Nano-Doped-TiO_𝟐 in the Degradation of Organic Pollutants

Table 3

Properties of metalloid or halogen-doped TiO₂ photocatalysts under various conditions.

Type of dopant	(Metal dopant/TiO2) molar ratio	Preparation of doped TiO2	Starting material of TiO2	Starting material of dopants	Crystallite size (nm)	Phase	BET surface area (m^2/g)	Reference
Metalloid
B	0.001	Hydrothermal	Ti(OBu)4	NaBH4	2.59	Anatase	268.31	[63]
	9.000	Sol gel	Ti(OBu)4	VO(OPr)3	6.00	Anatase	127.00	[66]
	0.040	Sol gel	TTIP	H3BO3	—	Anatase	219.00	[82]
	0.148	Sol gel	TiO2	(C2H5O)3B	7.00	Anatase	192.00	[83]
Si	0.111	Destabilization	HFTA	HFSA	6.50	—	155.00	[84]
	0.030	Hydrothermal	Ti(OC4H9)4	(C2H5)4SiO4	8.20	Anatase	191.70	[85]
	0.150	Templating	TBOT	TEOS	10.00	Anatase	120.00	[86]
Halogen
F	0.050	Hydrothermal	Ti(OC3H7)4	NH4F	—	Anatase	48.00	[75]
	0.500	Hydrothermal	TBOT	NH4HF2-H2O	11.20	Anatase	122.00	[77]
	0.770	Hydrothermal	TIP	NaF	10.00	Anatase	148.00	[78]
	0.039	Sol gel	Ti(C2H5O)4	CF3COOH	13.20	Anatase	—	[80]
	0.190	Spray pyrolysis	H2TiF6	H2TiF6	—	Anatase	27.10	[87]
	0.001	Sol gel	Ti(OBu)4	NH4F	3.78	Anatase	169.48	[81]
I	0.033	Hydrothermal	TTIP	HIO3	5.50	Anatase/brookite	137.60	[88]
	0.117	Hydrothermal	TNBT	KI	4.46	Anatase	184.87	[89]
	0.025	Sol gel	Ti(OBu)4	HIO3	5.50	Anatase	259.10	[90]