钽表面铜掺杂Ta2O5纳米棒的制备及抗菌性能研究  

Preparation and Antibacterial Properties of Ta2O5 Nanorods Doped with Copper on Tantalum

作　　者：王翠翠 李新宇 童晨光 蔡安琦 郭宏伟[1] 殷海荣[1] Wang Cuicui;Li Xinyu;Tong Chenguang;Cai Anqi;Guo Hongwei;Yin Hairong(Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials,School of Material Science and Engineering,Shaanxi University of Science and Technology,Xi'an 710021,China)

机构地区：[1]陕西科技大学材料科学与工程学院陕西省无机材料绿色制备与功能化重点实验室,陕西西安710021

出　　处：《稀有金属材料与工程》2020年第9期3163-3169,共7页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(青年项目)(51801117);陕西省自然科学基金(青年项目)(2018JQ8008);西安市未央区科技计划项目(201706);陕西省国际科技合作计划项目(2018KW-030)。

摘　　要：本实验采用两步水热法在钽基体表面制备出掺杂Cu^2+的Ta2O5纳米棒薄膜。采用XRD、SEM、XPS等方法分析了材料的物相和表面微观结构。用ICP检测了样品在生理盐水中离子析出浓度,最后通过平板计数法检验了不同含量铜掺杂Ta2O5薄膜的抗菌能力。结果表明,通过两步水热处理,在钽表面生成了简单斜方晶体结构的Ta2O5纳米棒阵列,Cu^2+的掺杂不会对纳米棒薄膜的微观形貌和物相造成显著影响。随时间的增加,掺铜薄膜的铜离子析出速率逐渐趋于平缓。平板计数法表明,Cu^2+的掺杂量达到2.68 at%时,铜掺杂Ta2O5纳米棒薄膜的抗菌性能最好,抗菌率达99.2%。Ta2O5 nanorod films doped with Cu^2+were prepared by a two-step hydrothermal method on tantalum.XRD,SEM and XPS were used to analyze the phase and surface microstructure of the materials.The ion precipitation concentration of samples in normal saline was detected by ICP,and the antibacterial ability of Ta2O5 films with different contents of copper was tested by a plate counting method.The results show that Ta2O5 nanorods with simple rhombic crystal structure are generated on the tantalum surface by two-step hydrothermal treatment,and the doping of Cu^2+does not significantly affect the micro structure and phase of the nanorods.With the increase of time,the precipitation rate of copper ions in copper-doped films gradually tends to be stable.The result of plate counting shows that when the doping amount of Cu^2+reaches 2.68 at%,the copper doped Ta2O5 nanorod film has the best antibacterial performance and the antibacterial rate reaches 99.2%.

关 键 词：钽 水热处理 Ta2O5纳米棒 铜掺杂 抗菌性 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TG146.416[金属学及工艺—金属学]