The activated carbon (AC) supported sulphur-based Ni/Co photocatalysts were prepared using the simple chemical precipitation method. The prepared samples were characterized with advanced scanning electron microscope, x-ray diffraction, Raman, UV-DRS, PL analyses. SEM images presented that AC-supported NiS and CoS nanocomposites were spherical and had rod-like morphologies. To determine photocatalytic performance and the kinetic model, the decomposition of Methyl Violet (MV) was carried out on all the photocatalyst samples. The synergetic effect was performed by comparing NiS/AC, CoS/AC and Ni/CoS/AC composites. The photocatalytic yield of the Ni7Co3/AC nanocomposite sample towards (MV) was found to be 98% in 90 min also under the same experimental conditions other AC-supported samples which CoS/AC, NiS/AC, and Ni3Co7/AC showed 56%, 74% and 78% photodegradation efficiency, respectively. The obtained results showed that the optimal content of component affects the degradation ability and also composites with increased NiS content displaying better photocatalytic performance. Ni7Co3/AC inactivation performance against S. aureus and E. faecalis was outstanding; nearly 100% inactivation was attained in less than 2 h. S. aureus and E. faecalis are both Gram positive (Gr+) bacteria. The Ni7Co3/AC composite deactivated Gr+ bacteria but had no effect against Gr− bacteria during the incubation period.

使用简单的化学沉淀法制备了活性炭 (AC) 负载的硫基 Ni/Co 光催化剂。通过先进的扫描电子显微镜，X射线衍射，拉曼光谱，UV-DRS，PL分析对制备的样品进行表征。SEM 图像表明 AC 负载的 NiS 和 CoS 纳米复合材料是球形的并且具有棒状形态。为了确定光催化性能和动力学模型，对所有光催化剂样品进行了甲基紫 (MV) 的分解。通过比较 NiS/AC、CoS/AC 和 Ni/CoS/AC 复合材料来实现协同效应。在相同的实验条件下，Ni7Co3/AC 纳米复合材料样品对 (MV) 的光催化产率为 98%，在相同的实验条件下，CoS/AC、NiS/AC 和 Ni3Co7/AC 的其他 AC 负载样品显示为 56% , 分别为 74% 和 78% 的光降解效率。所得结果表明，组分的最佳含量会影响降解能力，并且增加 NiS 含量的复合材料显示出更好的光催化性能。Ni7Co3/AC 灭活性能金黄色葡萄球菌和粪肠球菌表现出色；在不到 2 小时内实现了近 100% 的灭活。金黄色葡萄球菌和粪肠球菌都是革兰氏阳性 (Gr+) 细菌。Ni7Co3/AC 复合物使 Gr+ 细菌失活，但在潜伏期内对 Gr- 细菌没有影响。