In the present work, zinc tungstate (ZnWO₄) nanoparticles were synthesized by a simple co-precipitation technique without the addition of any templates and complexing agent. The X-ray diffraction study confirmed the formation of monoclinic structure ZnWO₄. The annealing temperatures play a significant role on the crystallization of the samples and the crystallite size of ZnWO₄ nanoparticles are varied between 30 and 65 nm. The well dispersed spherical solid shells along with nanoplatelet like morphology was obtained from the surface morphological study. The concomitant decrease in optical energy band gap value of ZnWO₄ is due to the effect of crystallite size enhancement. It was observed that the crystallinity is one of the primary factors that affect the luminescence property of ZnWO₄ nanoparticles. The purity and stoichiometric nature of synthesized product was confirmed by compositional analysis. The highest degradation efficiency of 87% was observed for 300 °C annealed ZnWO₄ nanoparticles in the photocatalytic study by the degradation of methylene blue dye under ultraviolet light irradiation. The photocatalytic study confirmed the decomposition of methylene blue after 1 h irradiation.

在目前的工作中，钨酸锌（ZnWO ₄）纳米粒子是通过简单的共沉淀技术合成的，无需添加任何模板和络合剂。X射线衍射研究证实了单斜晶结构ZnWO ₄的形成。退火温度对样品的结晶起重要作用，ZnWO ₄纳米粒子的微晶尺寸在30至65 nm之间变化。从表面形态研究中获得了良好分散的球形固体壳以及纳米片状形态。ZnWO _4的光能带隙值随之降低是由于微晶尺寸增加的影响。观察到结晶度是影响ZnWO ₄纳米粒子的发光性能的主要因素之一。通过组成分析确认了合成产物的纯度和化学计量性质。在光催化研究中，通过亚甲基蓝染料在紫外线照射下的降解，对300°C退火的ZnWO ₄纳米颗粒观察到最高的降解效率为87％。光催化研究证实了照射1 h后亚甲基蓝的分解。