光激发氧敏纳米纤维材料的制备及其性能  

The preparation and application of blue light stimulated oxygen sensitive nanofibers

作　　者：陈美萍 姚纪文 李蓉[1] 卢雪峰[1] 郭亚 CHEN Meiping;YAO Jiwen;LI Rong;LU Xuefeng;GUO Ya(Key Laboratory of Eco-Textile Ministry of Education, Jiangnan University, Wuxi 214122, China;School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, China)

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122 [2]江南大学物联网工程学院,江苏无锡214122

出　　处：《功能材料》2021年第11期11127-11131,11154,共6页Journal of Functional Materials

基　　金：国家自然科学基金青年基金资助项目(21706093,51805211)。

摘　　要：溶解氧的检测在医学、水产养殖及日常生活中具有极其重要的作用,制备了一种蓝光激发氧敏纳米纤维材料,可用于溶解氧的检测。首先采用改进Stober法将氧敏指示剂三(4,7-联苯-1,10-邻菲啰啉)二氯化钌(Ru(dpp)_(3)Cl_(2))掺杂到二氧化硅纳米颗粒(SiO_(2))中,再将掺杂氧敏指示剂的纳米二氧化硅颗粒与醋酸纤维素(CA)共混,利用静电纺丝技术制备出蓝光激发氧敏纳米纤维。对掺杂Ru(dpp)_(3)Cl_(2)的纳米二氧化硅颗粒进行了透射电镜(TEM)、扫描电镜(SEM)表征,并对其进行了表面元素分析。对纳米纤维进行了扫描电镜表征,测定了纳米纤维在不同溶解氧含量下的荧光强度,结果显示该纤维材料可被蓝光有效激发,并且荧光强度随溶解氧浓度变化呈线性相关,其线性相关系数较高,说明该纳米纤维可用于对溶解氧的测定,且结果较为准确。The detection of dissolved oxygen plays an important role in medicine,aquaculture and daily life.A blue light excited nanofiber used for the detection of dissolved oxygen is prepared in this paper.The fluorescence indicator(tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II)dichloride,abbreviated as Ru(dpp)_(3)Cl_(2))is mixed into silica nanoparticles(SiO_(2))by modified Stober method.And the prepared nano silica particles are mixed with cellulose acetate(CA)to prepare blue light stimulated oxygen sensitive nanofibers using electrospinning technology.The preapared nano silica particles are characterized by transmission electron microscopy(TEM)and scanning electron microscopy(SEM),and the surface element analysis on nano silica particles is performed by energy dispersive spectrometer(EDS).The nanofiber is characterized by scanning electron microscopy,and the fluorescence intensity of the nanofiber under different dissolved oxygen content is determined.The results indicate that the nanofiber can be effectively stimulated by blue light,and the fluorescence intensity is linear with the dissolved oxygen concentration with higher correlation coefficient,which shows that the nanofiber can be used for the determination of dissolved oxygen with higher accuracy.

关 键 词：静电纺丝 溶解氧 二氧化硅纳米颗粒 三(4 7-联苯-1 10-邻菲啰啉)二氯化钌 纳米纤维 

分 类 号：TQ342.8[化学工程—化纤工业]