1 To synthesize pure BiVO4 and BiVO4 co-doped with Y3+/Mo6+, Y3+/W6+, Ce3+/Mo6+, and Ce3+/W6+ at Bi3+site and V5+ site by hydrothermal method.
2 To characterize the physicochemical properties of the as-prepared photocatalyst samples
3 To study photocatalytic activity and recyclability of all photocatalyst samples for organic dyes degradation (e.g. Methylene blue (MB), Rhodamine B (RhB), and Methyl orange (MO)) as dyes model under visible light irradiation
4 To study photocatalytic activity of the as-prepared photocatalysts for wastewater effluent degradation from textile and/or Sa paper industries in Chiang Mai, Thailand
5 To investigate active species and intermediate products formed during the photocatalytic degradation of organic dyes
6 To explain photocatalytic mechanism of pure BiVO4 and BiVO4 after co-doping with metal ions
