纤维素纳米晶荧光探针的制备及其对Fe^3+荧光传感检测  

Preparation of Cellulose Nanocrystal Fluorescent Probe for Fe^3+ Sensing

作　　者：褚友露 宋如愿 戴红旗[2] 吴伟兵 CHU Youlu;SONG Ruyuan;DAI Hongqi;WU Weibing(State Key Laboratory of Bio-based Materials and Green Papermaking,Qilu University of Technology(Shandong Academy of Sciences),Ji'nan,Shandong Province,250353;Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources,Nanjing Forestry University,Nanjing,Jiangsu Province,210037)

机构地区：[1]齐鲁工业大学(山东省科学院)生物基材料与绿色造纸国家重点实验室,山东济南250353 [2]南京林业大学江苏省林业资源高效加工利用协同创新中心,江苏南京210037

出　　处：《中国造纸学报》2020年第4期1-7,共7页Transactions of China Pulp and Paper

基　　金：江苏省自然科学基金(BK20171450);国家重点研究开发项目(2017YFD0601005);生物基材料与绿色造纸国家重点实验室基金(No.KF201804);齐鲁工业大学、山东科学院和江苏省高等院校优先学科建设(PAPD)。

摘　　要：将纤维素纳米晶(CNC)与N-(4-氨基苯基)-4-(N,N-二甲基乙二胺基)-1,8-萘酰亚胺(EADANI)进行共价键结合,制备得到纤维素纳米晶荧光探针(FCNC),并应用于Fe3+的荧光传感检测。结果表明,由于表面羧基和羟基的存在,FCNC具有较好的水分散性,在水溶液中呈现良好的黄色荧光发射性能;Fe3+对FCNC具有荧光增强效果,荧光增强因子达9.5,同时在竞争性离子存在情况下,FCNC表现出良好的选择性。In this study,cellulose nanocrystal(CNC)was covalently bonded with N-(4-aminophenyl)-4-(N,N-dimethylenediamine)-1,8-naphthalimide(EADANI)to prepare fluorescent probe(FCNC),which was further applied for the fluorescence detection of Fe^3+.The study results found that because of the presence of surface carboxyl and hydroxyl groups,FCNC possessed good water dispersibility and intense yellow fluorescence emission in aqueous solution.FCNC showed selective detection performance for Fe^3+with the fluorescence enhancement factor high up to 9.5.In addition,FCNC had good anti-interference ability in the presence of competitive metal ions.

关 键 词：纤维素纳米晶 荧光探针 特异性识别 FE^3+ 

分 类 号：TS721[轻工技术与工程—制浆造纸工程] TQ3[化学工程]