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| 微波加热法所制Ag/Cu双金属纳米粒子的表征及其抗菌性能分析 |
| Characterization and antibacterial properties of Ag/Cu bimetallic nanoparticles prepared by microwave heating method |
| 投稿时间：2017-01-05 |
| DOI： |
| 中文关键词: Ag/Cu 双金属 纳米粒子 醇还原 微波加热 抗菌性能 |
| 英文关键词: Ag/Cu bimetal nanoparticle polyol reduction microwave heating antibacterial property |
| 基金项目:国家自然科学基金资助项目(50901053)；湖北省自然科学基金资助项目 (2014CFB799). |
| 作者 | 单位 | E-mail | | 李培义 | 武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081
武汉科技大学材料与冶金学院,湖北 武汉,430081 | 15671616389@163.com | | 宋述鹏 | 武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081
武汉科技大学材料与冶金学院,湖北 武汉,430081 | | | 王今朝 | 湖北大学材料科学与工程学院,湖北 武汉,430062 | | | 张远卓 | 武汉科技大学材料与冶金学院,湖北 武汉,430081 | | | 万天 | 武汉科技大学材料与冶金学院,湖北 武汉,430081 | |
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| 中文摘要: |
| 以AgNO3和Cu(CH3COO)2·H2O为前驱体,PVP为分散剂,分别以乙醇和乙二醇为还原剂,采用微波加热法制备Ag/Cu双金属纳米粒子,利用XRD、TEM、XPS等技术对其进行表征,并分析反应温度、n(Ag+)∶n(Cu2+)等因素对Ag/Cu双金属纳米粒子微观形貌及抗菌性能的影响。结果表明,以乙二醇为还原剂,当反应温度为169 ℃、n(Ag+)∶n(Cu2+)为4∶1时,所制Ag/Cu双金属纳米粒子粒径小且分散均匀,粒子粒径在20~60 nm范围内,并呈现出各种多面体结构,其对大肠杆菌具有良好的抗菌效果。 |
| 英文摘要: |
| With AgNO3 and Cu(CH3COO)2·H2O as the precursors, PVP as dispersing agent, ethylene glycol and ethanol as reductants respectively, Ag/Cu bimetallic nanoparticles were synthesised by microwave heating method. XRD, TEM, XPS, etc. techniques were applied to characterize Ag/Cu bimetallic nanoparticles. At the same time, the effects of reaction temperature, n(Ag+)∶n(Cu2+), etc. on morphology and antibacterial properties of Ag/Cu bimetallic nanoparticles were investigated. The results show that, with ethylene glycol used as the reduction agent ,when the reaction temperature is 169 ℃ and n(Ag+)∶n(Cu2+) is 4∶1, Ag/Cu bimetallic nanoparticles prepared have small particle size and uniform dispersion, the particle size is in the range of 20~60 nm, showing a variety of polyhedral structures with good antibacterial properties against Escherichia coli. |
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