Synthesis and Characterization of CuO, TiO₂, and CuO-TiO₂ Mixed Oxide by a Modified Oxalate Route

Table 2

Composition and colors of the precursor and decomposition products.

Sample code	Color of precursor	Color of decomposition product	Formula of decomposed product
E1	Greenish blue	Black	CuO/TiO2
E2	Greenish blue	Pale brown	TiO2
E3	Greenish blue	Black	CuO
E4	Greenish blue	Black	Cu-TiO2