Abstract
The nanoKNiF3 with its particles size of 50-70 nm was prepared by solvent-thermal method and characterized by means of XRD, TEM and IR technologies. Photocatalysed reduction of aqueous Na2CO3 was carried out by using nanoKNiF3 powders. Formic acid, formaldehyde and methyl alcohol were identified as photoproducts, and were measured in spectrophotometry using Nash reagent. It shows that nanoKNiF3 has superior photocatalytic activity. Irradiation leads to the production of electrons in the conduction band of the KNiF3 nanoparticles. It is likely that the photoproduced electrons reduce CO32- initially to HCOO-, and then to HCHO and CH3OH.
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