Herein, ZnWO₄ nanoparticles (NP_S) with controllable size were synthesized by a facile solvothermal method via changing EG concentration in the solvent. The physicochemical properties of ZnWO₄ NP_S were characterized by XRD, TEM, EDS, BET, XPS, UV–vis DRS, PL and photocurrent. The results shown that the EG concentration has a great influence on the morphology, size and crystallinity of ZnWO₄ NP_S. On the one hand, the photocatalytic activity of ZnWO₄-EG62.5 was obviously better than that of ZnWO₄-EG0 in the removal of hazardous pollutants including Cr⁶⁺, MB, RhB and MO by 71.4, 33.3, 13.5 and 21.3 %, respectively. Moreover, ZnWO₄-EG62.5 displayed excellent photocatalytic stability for Cr⁶⁺ reduction. The ZnWO₄-EG75, on the other hand, exhibited the best antibacterial activity to Bacillus subtilis and Vibrio alginolyticus, and the maximal inhibition zone area of Bacillus subtilis and Vibrio alginolyticus over ZnWO₄-EG75 was 3.4 and 6.8 times than that of ZnWO₄-EG0, respectively. Our work indicated that ZnWO₄ NP_S presented potential future application in water treatment and marine antifouling, and it is a feasible approach to enhance the photocatalytic and antibacterial performance of semiconductor NPs by controlling its size and crystallinity.

这里，ZnWO _4个纳米颗粒（NP_小号）具有可控尺寸通过一个浅显的溶剂热法通过在溶剂改变EG浓度合成。ZnWO ₄ NP _S的理化特性通过XRD，TEM，EDS，BET，XPS，UV-vis DRS，PL和光电流进行表征。结果表明，EG浓度对ZnWO ₄ NP _S的形貌，大小和结晶度有很大影响。一方面，ZnWO ₄ -EG62.5的光催化活性在去除Cr ⁶⁺等有害污染物方面明显优于ZnWO ₄ -EG0。，MB，RhB和MO分别降低71.4％，33.3％，13.5和21.3％。此外，ZnWO ₄ -EG62.5对Cr ⁶⁺还原显示出优异的光催化稳定性。所述ZnWO ₄ -EG75，在另一方面，表现出最佳的抗菌活性，以枯草芽孢杆菌和溶藻弧菌，和的最大抑制区面积枯草芽孢杆菌和溶藻弧菌超过ZnWO ₄ -EG75为3.4和6.8倍于ZnWO的₄ -EG0分别。我们的工作表明ZnWO ₄ NP _S 提出了在水处理和海洋防污方面潜在的未来应用，并且通过控制其尺寸和结晶度来增强半导体NP的光催化和抗菌性能是一种可行的方法。