Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran; Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
Department of Materials Engineering, Karaj Branch, Islamic Azad University, Karaj, Iran.
J Photochem Photobiol B. 2017 Aug;173:204-209. doi: 10.1016/j.jphotobiol.2017.05.041. Epub 2017 May 31.
The Magnetite FeO quantum dots anchored SnO nanofibers (FeO QDs/SnO NFs) have been synthesized using the facile one step hydrothermal method. The characteristic structure of synthesized FeO QDs/SnO NFs was analyzed using X-ray diffraction, Transmission electron Microscopy, Scanning electron microscopy, UV-vis diffuse reflectance, photoluminescence spectroscopy, and N adsorption-desorption instrumental techniques. The crystallites size of FeOQDs/SnO NFs was 7.0nm. The average diameters of FeOQDs/SnO NFs were 7.25nm. BET surface area of FeOQDs/SnO NFs has been found 53.064m/g. The activity of FeO QDs/SnO NFs samples were compared towards adsorption and degradation of mutagenic compound such as Ethyl methanesulfonate (EMS). The FeO QDs/SnO NFs demonstrates 93.85% and 56.85% photo degradation and adsorption activity towards 10ppm EMS solution in 30 and 40min, respectively. FeO QDs/SnO NFs shows maximum removal of EMS at pH5. Additionally, cytotoxicity test showed that the newly developed catalyst has low cytotoxic effects on three kinds of human cells. The antibacterial activity evaluation against two bacterials, including Staphylococcus aureus (ATCC 43300), and Pseudomonas aeruginosa (ATCC 27853) was considered. It was found that the MIC values for the antibacterial assay in the presence of FeO QDs/SnO NFs were around 0.38mM with 83.4, and 85.5% inhibition for the S. aureus, and P. aeruginosa bacterial strains, respectively.
采用简便的一步水热法合成了磁铁矿 FeO 量子点锚定的 SnO 纳米纤维（FeO QDs/SnO NFs）。利用 X 射线衍射、透射电子显微镜、扫描电子显微镜、紫外-可见漫反射、光致发光光谱和 N2 吸附-脱附等仪器技术分析了合成的 FeO QDs/SnO NFs 的特征结构。FeOQDs/SnO NFs 的晶粒度为 7.0nm。FeOQDs/SnO NFs 的平均直径为 7.25nm。FeOQDs/SnO NFs 的 BET 比表面积为 53.064m/g。比较了 FeO QDs/SnO NFs 样品对致突变化合物乙基甲磺酸（EMS）的吸附和降解活性。FeO QDs/SnO NFs 在 30 和 40min 内对 10ppm EMS 溶液分别显示出 93.85%和 56.85%的光降解和吸附活性。FeO QDs/SnO NFs 在 pH5 时表现出最大的 EMS 去除率。此外，细胞毒性试验表明，新开发的催化剂对三种人类细胞的细胞毒性作用较低。还评估了其对两种细菌（金黄色葡萄球菌（ATCC 43300）和铜绿假单胞菌（ATCC 27853）的抗菌活性。发现存在 FeO QDs/SnO NFs 时，抗菌测定的 MIC 值约为 0.38mM，对金黄色葡萄球菌和铜绿假单胞菌的抑制率分别为 83.4%和 85.5%。
