Nitrogen-doped ZnWO4 nanophotocatalyst: synthesis, characterization and photodegradation of methylene blue under visible light

A review on the applications of zinc tungstate (ZnWO4) photocatalyst for wastewater treatment

“…Hosseinpour-Mashkani et al ( 2016) also studied the effect of surfactants such as polyethylene glycol (PEG), carboxymethyl cellulose (CMC) as well as polyvinyl alcohol (PVA). Here, it was observed that using propylene glycol as a solvent and CMC as a Rahmani and Sedaghat (2019). This report proved that pure ZnWO 4 nanoparticles with the best crystallinity can be obtained by controlling the pH value and maintaining it at 6.…”

“…Grossin (2021) describe this method as involving the hydrolysis of the precursor in acidic or basic mediums and the polycondensation of the hydrolyzed. Rahmani and Sedaghat (2019) studied the nature of the ZnWO 4 nanoparticles obtained from this study. The nanoparticles were synthesized by adding 30mL ethanol and 3 mL HCL into a mixture of zinc acetate dropwise, while sodium tungstate in deionized water was added to 20 mL of ethanol in a dropwise form.…”

“…The members of the tungstate family have, over the years, been used for the mineralization of organic pollutants under UV (Rahmani and Sedaghat, 2019) and sunlight (Paliki et al, 2016) irradiation. However, the photocatalytic strength of ZnWO 4 stand-alone is not strong enough (Rahmani and Sedaghat, 2019).…”

“…The members of the tungstate family have, over the years, been used for the mineralization of organic pollutants under UV (Rahmani and Sedaghat, 2019) and sunlight (Paliki et al, 2016) irradiation. However, the photocatalytic strength of ZnWO 4 stand-alone is not strong enough (Rahmani and Sedaghat, 2019). The enhancement of the photocatalytic activity of semiconductor ZnWO 4 for practical applications has deeply been considered for the degradation of contaminants.…”

Synthesis Methods and Applications of Semiconductor Material ZnWO4 with Multifunctions and Multiconstructions

“…In addition, the team prepared nitrogen‐doped ZnWO 4 nanoparticles by the sol−gel method. [ 45 ] Compared with pure ZnWO 4 , the absorption wavelength of nitrogen‐doped ZnWO 4 shifted to the visible light region, and it also enhanced the photocatalytic degradation of MB.…”