NiO impregnated MCM-48 based on recycled silica fume (Ni/SF-MCM-48) was synthesized as a novel nanocomposite of effective photocatalytic and antimicrobial properties. The Ni/SF-MCM-48 is of 2.38 nm pore diameter, 504 m²/g as surface area, and 2.13 eV as bandgap energy which are promising technical properties. The photocatalytic activity of Ni/SF-MCM-48 was evaluated for promising oxidation of Levofloxacin (LVX) residuals and as an antimicrobial agent for Gram-positive bacterium Staphylococcus aureus and Gram-negative bacterium Vibrio sp. The complete oxidation for 10 mg/L, 20 mg/L, 30 mg/L, 40 mg/L, 50 mg/L, and 60 mg/L of LVX was recognized after 20 min, 40 min, 60 min, 70 min, 90 min, and 120 min, respectively using 0.1 g of it as dosage. The oxidation pathway was described based on the obtained intermediate compounds which verified complete converting of them into their end products. Additionally, the trapping tests confirmed an essential role for both the electron-hole pairs and the hydroxyl radicals as the reacting oxidizing species. The recyclability of Ni/SF-MCM-48 showed stability for it for five oxidation experiments achieving a percentage higher than 90% for the inspected tests. The synthetic Ni/SF-MCM-48 composite as antimicrobial agent showed inhabitation zones of 36 mm and 33 mm for Gram-positive Staphylococcus aureus and Gram-negative bacterium Vibrio Sp, respectively. Also, it displayed 18.75 μg/mL and 18.75 μg/mL as minimum inhibitory and minimum inhibitory concentrations against Staphylococcus aureus, respectively.

以回收的硅粉（Ni / SF-MCM-48）为基础，浸渍了NiO浸渍的MCM-48作为具有有效光催化和抗菌性能的新型纳米复合材料。Ni / SF-MCM-48的孔径为2.38nm ，表面积为504m ² / g，带隙能量为2.13eV，这是有希望的技术性能。对Ni / SF-MCM-48的光催化活性进行了评估，以证明有希望将左氧氟沙星（LVX）残留物氧化，并将其用作革兰氏阳性细菌金黄色葡萄球菌的抗菌剂和革兰氏阴性菌弧菌。在20分钟，40分钟，60分钟，70分钟后，LVX 10 mg / L，20 mg / L，30 mg / L，40 mg / L，50 mg / L和60 mg / L的完全氧化被识别分别使用0.1克，90分钟和120分钟。基于获得的中间体化合物描述了氧化途径，该中间体证实了它们已完全转化成其最终产物。另外，俘获测试证实了电子-空穴对和羟基自由基作为反应性氧化物质都起着至关重要的作用。Ni / SF-MCM-48的可回收性表明它在五个氧化实验中均具有稳定性，对于所检查的测试，该百分比高于90％。合成的Ni / SF-MCM-48复合抗菌剂对革兰氏阳性菌的居住区为36 mm和33 mm金黄色葡萄球菌和革兰氏阴性菌弧菌Sp。此外，它对金黄色葡萄球菌的最低抑菌浓度和最低抑菌浓度分别为18.75μg/ mL和18.75μg/ mL 。