State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China.
Department of Chemistry, Nano Smart Science Institute, Tehran, Iran; Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Int J Biol Macromol. 2020 Jul 15;155:36-41. doi: 10.1016/j.ijbiomac.2020.03.077. Epub 2020 Mar 11.
The material of CuS/polyvinyl alcohol-chitosan (CuS/PVACS) was prepared with a novel synthesis analysis. The crystallinity, morphological characteristics, and photocatalytic performance of the nano-materials were investigated by X-ray diffraction, field emission scanning electron microscopy X-ray photoelectron, and UV-vis spectrophotometry. The band gap values (Eg) was found as 2.50, and 2.04 eV for CuS, and CuS/PVACS nano-catalyst, respectively. The photo-degradation amount of the malachite green solutions which were degraded by CuS/PVACS in the UV-irradiation in 60 min was above 96.51%. The antibacterial properties of the CuS/PVACS has been evaluated versus (G+/G-) bacteria. The results of antibacterial performance indicated that CuS/PVACS nanocomposites have bacteriostatic behavior versus Escherichia coli, Pseudomonas syringae, Staphylococcus aureus and Streptococcus pneumoniae.
采用一种新的合成分析方法制备了 CuS/聚乙烯醇-壳聚糖（CuS/PVACS）材料。通过 X 射线衍射、场发射扫描电子显微镜 X 射线光电子能谱和紫外可见分光光度法研究了纳米材料的结晶度、形貌特征和光催化性能。发现 CuS 和 CuS/PVACS 纳米催化剂的能带隙值（Eg）分别为 2.50 和 2.04 eV。在 60 分钟的 UV 照射下，CuS/PVACS 对孔雀石绿溶液的光降解量超过 96.51%。CuS/PVACS 的抗菌性能已经针对（G+/G-）细菌进行了评估。抗菌性能的结果表明，CuS/PVACS 纳米复合材料对大肠杆菌、丁香假单胞菌、金黄色葡萄球菌和肺炎链球菌具有抑菌作用。
