Structural and optical characterization of metal tungstates (MWO4; M=Ni, Ba, Bi) synthesized by a sucrose-templated method

Table 1 Summary of metal tungstates phase formation and calculated crystallite sizes

System	X-ray phase	Crystal structure	2Θ	hkl	t (nm)
NiWO₄	Wolframite	Monoclinic	23.89	100	19.3
			24.85	110	19.3
			30.87	011	17.2
BaWO₄	Scheelite	Body cubic tetragonal	26.38	112	18.9
BaWO₄	Scheelite	Body cubic tetragonal	27.99	004	17.4
Bi₂WO₆	Orthorhombic	Orthorhombic	28.29	131	15.5
			32.83	002	14.9

ISSN: 2661-801X