Effective removal of malachite green from local dyeing wastewater using zinc-tungstate based materials.

The frequent use of an industrial dye such as malachite green (MG) has caused major water body deterioration and is one of the most pressing global challenges, demanding effective treatment techniques. To solve these issues, a simplistic method was developed to synthesize zinc-tungstate (ZnWO) nanoparticles and also dope the surface matrix of the ZnWO nanoparticles using nonmetals of boron (B), carbon (C), and nitrogen (N) at different ratios for enhanced MG removal from wastewater. The prepared nanomaterials were characterized by different methods for crystal structure composition, surface properties, surface morphology, microstructures, functional groups, and elemental oxidation states.

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

The monoclinic wolframite-phase structure of ZnWO materials has been frequently synthesised, characterised, and applied in optical fibres, environmental decontamination, electrochemistry, photonics, catalysis, and not limited to magnetic applications. However, the problems of crystal growth conditions and mechanisms, growth, the crystal quality, stability, and the role of synthesis parameters of ZnWO nanoparticles remain a challenge limiting its commercial applications. This review presents recent advances of ZnWO as an advanced multi-functional material for Industrial wastewater treatment.