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中空UiO-66-NH2材料的制备及其在铅离子和铜离子电化学同时检测中的应用

作者:时间:2020-07-28点击数:

全文下载:    202004003.pdf


文章编号: 1672-6987202004-0027-09 DOI 10.16351/j.1672-6987.2020.04.003

 

齐有啸1a 申优1a 李红霞2 万钧1a 王新星1b*

(1.青岛科技大学 a.环境与安全工程学院;b.化学与分子工程学院,山东 青岛 266042;2.潍坊海关,山东 潍坊 261031)

 

摘要: 采用酸刻蚀后处理制备了具有中空结构的UiO-66-NH2材料(P-UiO-66-NH2),并利用其构建电化学传感平台实现了对水溶液中铅离子(Pb2+)和铜离子(Cu2+)的同时电化学检测。采用扫描电子显微镜(SEM),透射电子显微镜(TEM)和各种电化学技术对材料的形貌及其电化学性质进行了表征。结果表明:P-UiO-66-NH2具有较UiO-66-NH2明显改善的电化学性质。基于P-UiO-66-NH2所构建的电化学传感平台,在优化条件下可实现对Pb2+Cu2+的灵敏检测,检测限分别为0 .020 μmol·L-1(Pb2+)0 .030 μmol·L-1(Cu2+)。此外,该传感器还具有良好的选择性、重现性和稳定性,对实际样品中Pb2+Cu2+的检测也表现出令人满意的结果。

关键词: UiO-66-NH2 酸刻蚀; 铅离子; 铜离子; 电化学检测

中图分类号: TP 212.2文献标志码: A

引用格式: 齐有啸, 申优, 李红霞, . 中空UiO-66-NH2材料的制备及其在铅离子和铜离子电化学同时检测中的应用\[J\]. 青岛科技大学学报(自然科学版), 2020 414): 27-35.

QI Youxiao SHEN You LI Hongxia, et al. Preparation of hollow UiO-66-NH2 material and its application in simultaneous electrochemical detection of lead and copper ions\[J\]. Journal of Qingdao University of Science and TechnologyNatural Science Edition), 2020 414): 27-35.

 


Preparation of Hollow UiO-66-NH2 Material and Its Application in Simultaneous

 

 Electrochemical Detection of Lead and Copper Ions

 

QI Youxiao1a SHEN You1a LI Hongxia2, WAN Jun1a, WANG Xinxing1b

(1.a.College of Environment and Safety Engineering; b.College of Chemistry and Molecular Engineering,

Qingdao University of Science and Technology, Qingdao 266042, China2.Weifang Customs,Weifang 261031,China)

 

Abstract: In this paper, the UiO-66-NH2 material with hollow structure (P-UiO-66-NH2) was prepared by acid etching, and an electrochemical sensing platform was constructed based on the material to realize simultaneous electrochemical detection of lead ions (Pb2+) and copper ions (Cu2+) in aqueous solution. The morphology and electrochemical properties of the material were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and various electrochemical techniques. The results show that the electrochemical properties of the P-UiO-66-NH2 have significantly improved compared with that of UiO-66-NH2. Based on the electrochemical sensing platform, sensitive detection of Pb2+ and Cu2+ was achieved under optimized conditions, and the detection limits were 0.020 μmol·L-1(Pb2+) and 0.030 μmol·L-1 (Cu2+), respectively. In addition, the sensor also exhibited good selectivity, reproducibility and stability, and the result for the detection of Pb2+ and Cu2+ in real samples was satisfactory.

Key words: UiO-66-NH2; acid etching; lead ion; copper ion; electrochemical detection


收稿日期:  2019-09-04

基金项目: 国家自然科学基金青年项目(21804076);山东省自然科学基金博士基金项目(ZR2017BB040);青岛市应用基础研究计划项目(17-1-1-65-jch);光电传感与生命分析教育部重点实验室开放基金项目(SATM201708).

作者简介: 齐有啸(1994),,硕士研究生.*通信联系人.


 

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