The study of semiconductor material and their characteristics is an important topic of analytical chemistry. Nickel tungstate nanoparticles have been studied in different applications like sensor, microelectronics, solar cell, batteries, drug delivery, catalysis, etc. due to various interesting properties (highest melting temperature, high surface area, low sintering temperature etc.), controllable particle size and narrow band gap. In this project, four different metal tungstate nanoparticles (CuWO4, CoWO4, NiWO4, and ZnWO4)) were synthesized from using co-precipitation method. These nanoparticles were then calcinated at different temperatures and the resulting materials will be characterized by diffusion reflectance-UV (to measure band gap), transmission electron spectroscopy (TEM, to know particle size), X-ray diffraction (for purity and structural pattern), BET (to get surface area), IR (for functional group), TGA (to get the water loss) analysis. To observe the photocatalytic efficiency, these nanoparticles will also be studied in photodegradation under controlled lighting source with an organic dye molecule, methylene blue. All the experimental data from different samples will be analyzed to discover the annealing effect on particle size, crystallization, and catalytic properties.

Synthesis and characterization of nickel tungstate nanomaterials and their applications in photodegradation

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