石墨烯量子点复合材料的制备及其对抗坏血酸的荧光检测  

Preparation of graphene quantum dot composites and fluorescence detection of ascorbic acid

作　　者：赵宝茹 王健恺 黄鑫 王悦 杜小雨 张永[2] 马文辉[1] ZHAO Bao-ru;WANG Jian-kai;HUANG Xin;WANG Yue;DU Xiao-yu;ZHANG Yong;MA Wen-hui(College of Chemistry and Chemical Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China;College of Materials Science and Engineering,Qiqihar University,Heilongjiang Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2022年第2期62-65,共4页Journal of Qiqihar University(Natural Science Edition)

基　　金：黑龙江省自然科学基金联合引导项目(LH2020E126);齐齐哈尔大学研究生创新科研项目资助(YJSCX2019041,YJSCX2020003);黑龙江省表面活性剂与工业助剂重点实验室开放课题基金资助项目(BMHXJKF002)。

摘　　要：:设计并制备了一种在纯水系中荧光增强识别抗坏血酸(AA)的石墨烯量子点复合材料NB-GQDs@MOF-5,利用TEM、FT-IR和XRD对其形貌和结构进行了表征,结果表明NB-GQDs与MOF-5成功复合。荧光检测结果表明,在纯水体系中,NB-GQDs@MOF-5可在考察的有机小分子及阳离子范围内专一性地识别AA,滴加AA后引起荧光增强8.1倍,检出限为0.039μmol/L。A graphene quantum dot composite NB-GQDs@MOF-5 was designed and prepared for the fluorescence recognition of ascorbic acid(AA)in pure water system.The morphology and structure of NB-GQDs were characterized by TEM,FT-IR and XRD.The results showed that the NB-GQDs was successfully combined with MOF-5.The fluorescence detection results exhibited that in pure water system,NB-GQDs@MOF-5 could specifically identify AA among the organic small molecules and cations.The addition of AA led to a 8.1-fold fluorescence enhancement with a detection limits of 0.039μmol/L.

关 键 词：石墨烯量子点 MOF-5 荧光识别 抗坏血酸 

分 类 号：O657.3[理学—分析化学]