|
个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：化学学院副院长
其他任职：辽宁省教学名师，宝钢优秀教师特等奖提名奖，中国分析测试学会青年学术委员会委员
性别：女
毕业院校：南京大学
学位：博士
所在单位：化学学院
学科：分析化学. 生物化学与分子生物学
办公地点：化工综合楼C305
电子邮箱：wushuo@dlut.edu.cn
Covalent Functionalization of Graphene Oxide with a Presynthesized Metal-Organic Framework Enables a Highly Stable Electrochemical Sensing
点击次数：
论文类型：期刊论文
发表时间：2019-09-11
发表刊物：ACS APPLIED MATERIALS & INTERFACES
收录刊物：PubMed、EI、SCIE
卷号：11
期号：36
页面范围：33238-33244
ISSN号：1944-8244
关键字：covalent functionalization; graphene oxide; metal-organic framework; electrochemical sensing; purine derivatives
摘要：This paper reports the covalent functionalization of graphene oxide (GO) by a presynthesized metal-organic framework NH2-MIL-101(Fe) via ultrasonication of the two components. The formation of Fe-O covalent bonding in the NH2-MIL-101(Fe)-GO nanohybrid is clearly evidenced, and the covalent bonding still remains after electrochemical reduction. The morphology and structure of the nanohybrid are characterized via scanning electron microscopy, transmission electron microscopy, UV-vis spectroscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and Raman spectroscopy. The electrode based on electrochemically reduced NH2-MIL-101(Fe)-GO shows ultrastable and high-sensitive performance in simultaneous electrochemical sensing of three purine metabolic derivatives (uric acid, xanthine, and hypoxanthine); in particular, no signal fading is seen even after running for 120 times. The covalent bonding within the nanohybrid is obviously the key to maintain such a stability.
上一条：Promising Mercaptobenzoic Acid-Bridged Charge Transfer for Electrochemiluminescence from CuInS2@ZnS Nanocrystals via Internal Cu+/Cu2+ Couple Cycling
下一条：Phosphonate-Substituted Ruthenium(II) Bipyridyl Derivative as a Photoelectrochemical Probe for Sensitive and Selective Detection of Mercury(II) in Biofluids