Study of Photocatalytic Activity and Properties of Transition Metal Ions Doped Nanocrystalline TiO₂ Prepared by Sol-Gel Method

Table 1

XRD data for 1% TM doped TiO₂ for different temperatures.

Temperature	2𝜃 (deg)	Highest intensity peak (cps·deg)	Interplanar distance dÅ	Cell values 𝑎,𝑏,𝑐	Corresponding plane (h, k, l)	Average crystalline size (nm)	Phase
200°C	25.22°	189	𝑑=3.540 Å	3.700, 2.5134, 9.4200	(1, 0, 1)	4.4 nm	Anatase,; (JSPDS 21-1272)
400°C	25.49°	545	𝑑=3.520 Å	3.7960, 2.5134, 9.4440	(1, 0, 1)	5.8 nm	Anatase,; (JSPDS 21-1272)
600°C	25.06°	952	𝑑=3.531 Å	3.7800, 2.5134, 9.5140.	(1, 0, 1)	9.2 nm	Anatase,; (JSPDS 21-1272)
800°C	27.47°	2320	𝑑=3.271 Å	4.5922, 2.9574,; 0.6440	(1, 1, 0)	40.4 nm	Rutile phase exist (JSPDS 86-0146)