Template-Free Synthesis of Star-Like ZrO₂ Nanostructures and Their Application in Photocatalysis

Table 1

Estimated crystallite sizes of ZrO₂ synthesized at different reaction times.

Sample	Crystal face	FWHM (rad)	Crystallite size (nm)
ZrO2 (120 min)	[−1 1 1]	0.0215	6.97
ZrO2 (200 min)	[−1 1 1]	0.0205	7.31
ZrO2 (280 min)	[−1 1 1]	0.0182	8.23
ZrO2 (360 min)	[−1 1 1]	0.0166	9.02