Synthesis of rod-like ultrafine K sub(4Ce) sub(2)Nb sub(10O) sub(3)0 via a salt-assistant stearic acid method

A salt-assistant stearic acid method (SAM) capable of forming ultrafine K sub(4Ce) sub(2)Nb sub(10O) sub(3)0 products was described. XRD pattern revealed that tetragonal K sub(4Ce) sub(2)Nb sub(10O) sub(3)0 products could be obtained by heat treatment at 900 degree C for 2 h. Transmission electron microscopy (TEM) observations indicated the introduction of KCl could lead to the formation of rod-like K sub(4Ce) sub(2)Nb sub(10O) sub(3)0 products. The species of salts played a crucial role in fine tuning the shapes and sizes of K sub(4Ce) sub(2)Nb sub(10O) sub(3)0 products. Furthermore, the K sub(4Ce) sub(2)Nb sub(10O) sub(3)0 prepared by salt-assistant SAM had considerable activity under visible light irradiation.