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银系金属有机框架物与纤维素纤维复合抗菌材料的制备及性能研究 |
In Situ Preparation of Sliver-based Metal-organic Frameworks@Cellulose Fibers Composite and Its Antibacterial Performance |
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DOI:10.11980/j.issn.0254-508X.2018.05.003 |
关键词: 金属有机框架物 纤维素纤维 抗菌 复合材料 |
Key Words:metal-organic frameworks cellulose fiber antibacterial composite |
基金项目:国家自然科学基金青年基金(31700510);齐鲁工业大学教育部重点实验室开放基金(KF201626);陕西科技大学轻工科学与工程“生物质化学与材料”院士工作室项目(134090002)。 |
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摘要:采用原位合成法制备银系金属有机框架物与纤维素纤维(Ag-MOFs @CFs)复合抗菌材料。通过扫描电镜能谱仪(SEM-EDX)、傅里叶变换红外光谱仪(FT-IR)、X射线衍射仪(XRD)等对复合抗菌材料的形貌及结构进行表征分析。结果表明,采用原位合成法可成功将Ag-MOFs负载在纤维表面,其中Ag-MOFs为长3.0~9.0 μm,宽0.3~1.1 μm的棒状晶须,Ag-MOFs中的Ag+与纤维表面羟基可发生静电吸附作用,强化两者界面结合。抗菌测定结果表明,合成的Ag-MOFs @CFs复合材料对大肠杆菌和金黄色葡萄球菌表现出良好的抗菌性,且通过电感耦合等离子体质仪(ICP-AES)检测结果进一步证明Ag-MOFs具有缓慢释放Ag+的作用,从而实现持久抗菌的效果。 |
Abstract:Sliver-based metal-organic frameworks@cellulose fibers (Ag-MOFs@CFs) composites were prepared by in-situ synthesis method. The composites were characterized and analyzed by scanning electron microscopy with Scanning electron microscope-energydispersive Spectroscopy(SEM-EDX), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffractometer (XRD). The results showed that Ag-MOFs were successfully immobilized on the fibers surfaces thanks to the electrostatic adsorption between Ag ions in MOFs and cellulose. The test results of inductively coupled plasma (ICP)indicated that Ag-MOFs could release Ag ions lonely in the atomic emission spectrometer. The new synthetized Ag-MOFs /fibers composite showed desirable and sustainable antibacterial activity against escherichia coli and staphylococcus aureus. |
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