Facile Synthesis of Solid Solution Microspheres through Ultrasonic Spray Pyrolysis for Improved Photocatalytic Activity

Table 1

Composition (Zn/Cd molar ratio) of the reactant solutions and the resulting microspheres.

Samples	ZnS				CdS
Molar ration of Zn/Cd in precursor	1 : 0	3 : 1	1 : 1	1 : 3	0 : 1
of in product	—	0.73	0.47	0.24	0.01
Abortion edge (nm)	335	390	454	484	525
Band gap (eV)	3.7	3.2	2.7	2.6	2.4

The value of in product was detected by energy dispersive X-ray spectroscopy.