摘要
在乙醇-水溶液中,合成了一系列不同配比的稀土掺杂(La/Dy)-L-苏氨酸(L-Thr)-邻菲罗啉(Phen)三元固体配合物。对其进行了元素分析、摩尔电导、紫外光谱、红外光谱、热重分析等表征及分析,推测配合物的组成为[LaxDy1-x(L-Thr)3Phen]Cl3.2H2O。通过荧光光谱讨论配合物的发光特性,当La和Dy掺杂比为4∶6时,配合物的荧光强度达到最大。通过抑菌实验对配合物的生物活性进行了比较研究,当La和Dy掺杂比为6∶4时,对大肠杆菌的抑菌效果最强。
In the ethanol-water medium,a series of doped ternary complexes of La/Dy-L-threonine-1,10-Phenanthroline was synthesized in different proportions of La/Dy.Through element analysis,molar conductance,ultraviolet spectra（UV）,infrared spectra（IR） and TG-DTG,the general formula of the complexes was conformed to be [LaxDy1-x（L-Thr）3Phen]Cl3·2H2O.Then fluorescence spectra were used to discuss their glowing characteristics,and when La and Dy doping ratio was set as 4∶6,the fluorescence intensity achieved maximum.Finally their biological activity was studied by antibacterial experiment.When the doping ratio of La and Dy was 6∶4,the antibacterial effect of e.coli was the best.
出处
《中国稀土学报》
CAS
CSCD
北大核心
2013年第1期1-6,共6页
Journal of the Chinese Society of Rare Earths
基金
湖北省教育厅重点科研项目(D20082202)
污染物分析与资源化技术湖北省重点实验室2012年开放基金
湖北师范学院研究生创新研究项目(201203)资助
关键词
掺杂
配合物
荧光
抑菌效应
稀土
doped
complexes
fluorescence
bacteriostasis
rare earths
