Synthesis, characterization, and investigation of magnetic, photocatalytic and antibacterial properties of TbVO4 nanoparticles
Synthesis, characterization, and investigation of magnetic, photocatalytic and antibacterial properties of TbVO4 nanoparticles
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TbVO4 纳米粒子的合成、表征以及磁性、光催化和抗菌性能的研究
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
M. Eghbali
中科院分区：
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作者：
Farhad Ahmadi;M. Rahimi‐Nasrabadi;M. Rahimi‐Nasrabadi;M. Daneshmehr;M. Eghbali
本工作采用共沉淀法从含有葡萄糖、乳糖和淀粉等多种碳水化合物的溶液中合成了TbVO_4纳米粒子。我们还研究了这些绿色封端剂对纳米粒子的尺寸、形貌和光学行为的影响。通过XRD、SEM、EDX和UV-Vis光谱对产物的结构、形貌和光学性能进行了研究。结果表明，在空气气氛下，将沉淀产物即前驱体在550 ° C下热处理5 h，可以制备出纯的纳米TbVO4晶体。样品的振动磁力仪显示，它在环境条件下具有顺磁性行为。这些纳米尺寸的粒子的存在下，在光降解反应中的作用的研究表明，约83%的最大脱色可以实现的紫外光诱导降解的甲基橙子在钒酸铽纳米晶体的存在下，在紫外光下处理1小时后。纳米粒对金黄色葡萄球菌和大肠杆菌具有良好的抗菌活性。
In this work we synthesized the Nano-sized TbVO4 particles by co-precipitation method from a solution that containing various carbohydrates such as glucose, lactose and starch. We studied the effect of these green capping agents on the dimensions, morphology and optical behavior of NPs too. Studies on the structure, morphology, and the optical behavior of products were made through XRD, SEM, EDX, and UV–Vis spectroscopy studies. The results showed that pure nano-sized TbVO4 crystals could be prepared through thermally treating the precipitation product, i.e. the precursor, at 550 °C for 5 h under an air atmosphere. Vibrating magnetometery of the samples revealed that it has a paramagnetic behavior under ambient conditions. Studies on the role of the presence of these nano-sized particles in a photo-degradation reaction demonstrated that a maximum decolorization of around 83% could be achieved for the UV-induced degradation of methyl orange in the presence of the terbium vanadate nano-crystals after 1 h of treatment under UV light. The NPs have been show a good antibacterial activity against Staphylococcus aureus and Escherichia coli.