摘要
以二氧化钛纳米颗粒和硫酸铜溶液为原料,在紫外线灯的照射下进行铜负载二氧化钛纳米带复合材料制备,采用扫描电子显微镜(SEM)、X-射线能谱仪(EDS)、X-射线衍射仪(XRD)、抑菌圈法、细菌比浊法等分析技术研究了所制备负载纳米带复合材料的微观结构及抗菌性能。结果表明,纳米二氧化钛粒子在水热条件下可生长成纳米带,铜均匀负载在纳米带上,从而制备出铜负载二氧化钛纳米带复合材料,负载程度可以通过更改照射时间、硫酸铜浓度等条件进行微调;该负载纳米带复合材料对革兰氏菌有很好的抗菌性能,且负载程度越高,产物抗菌性能越大。
Using nanosized titanium dioxide and copper sulfate solution as raw materials,copper loaded titanium dioxide nanobelts composites were prepared under ultraviolet light irradiation.The microstructure and antibacterial properties of the composite were investigated by means of scanning electron microscopy（SEM）,X-ray energy dispersive spectroscopy（EDS）,X-ray diffraction（XRD）,antibacterial ring method and bacteria turbidimetry method.The results showed that titanium dioxide nanoparticles grew to become TiO_2 nanobelts and copper was uniformly loaded on these nanobelts during the hydrothermal reaction.Moreover,it was found that the load degree of copper can be adjusted by changing the experimental conditions such as irradiation time and concentration of copper sulfate solution.The prepared composites had excellent antibacterial property against Gram bacteria and the antibacterial activity increased with the load degree of copper.
出处
《材料科学与工程学报》
CAS
CSCD
北大核心
2016年第6期884-889,922,共7页
Journal of Materials Science and Engineering
基金
国家高技术研究发展计划863资助项目(2012AA030312)
深圳电磁控制重点实验室开放基金资助项目(EMCKF201405)
深圳市龙岗区产学研合作资助项目(CXY2012006)
关键词
二氧化钛纳米带
铜负载
革兰氏菌
抗菌性
TiO2 nanobelts
copper loaded
gram bacteria
antibacterial activity
