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[1]吴生丽,刘　忆,孙艳娟,等.功能化石墨烯四溴双酚A的电化学传感研究[J].武汉工程大学学报,2017,39(05):432-437.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 005]
　WU Shengli,LIU Yi,SUN Yanjuan,et al.An Electrochemical Sensor for Tetrabromobisphenol A Determination Based on Functionalized Graphene[J].Journal of Wuhan Institute of Technology,2017,39(05):432-437.[doi:10. 3969/j. issn. 1674?2869. 2017. 05. 005]
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功能化石墨烯四溴双酚A的电化学传感研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年05期
页码:
432-437
栏目:
化学与化学工程
出版日期:
2017-12-19

文章信息/Info

Title:
An Electrochemical Sensor for Tetrabromobisphenol A Determination Based on Functionalized Graphene
文章编号:
20170505
作者:
吴生丽; 刘　忆; 孙艳娟; 曹　媛; 邹　菁*
武汉工程大学化学与环境工程学院，湖北 武汉 430205
Author(s):
WU Shengli; LIU Yi; SUN Yanjuan; CAO Yuan; ZOU Jing*
School of Chemistry and Environmental Engineering，Wuhan Institute of Technology，Wuhan 430205，China
关键词:
石墨烯; 剥离; N; N-二甲基甲酰胺; 四溴双酚A; 电化学传感器
Keywords:
graphene; exfoliation; N; N-dimethylformamide; tetrabromobisphenol A; electrochemical sensor
分类号:
O0647
DOI:
10. 3969/j. issn. 1674?2869. 2017. 05. 005
文献标志码:
A
摘要:
以N，N-二甲基甲酰胺为剥离溶剂，柠檬酸钠为剥离助剂，通过超声剥离得到了功能化石墨烯纳米片，并构建出高性能的电化学传感器. 对所得产物进行透射电子显微镜表征，结果发现与原块体材料相比，所得产物为单层或少数几层的石墨烯纳米片. 通过优化超声时间、石墨烯质量浓度和溶液的pH值，构建了对四溴双酚A （TBBPA）具有高灵敏度的功能化石墨烯电化学传感器. 该传感器的电化学阻抗结果表明，剥离后的石墨烯具有更快的电子传递速率. 更重要的是， 所构建的功能化石墨烯电化学传感器对TBBPA呈现出的线性范围为0.1 μmol/L~14 μmol/L和较低的检出限［5×10-8 mol/L（S/N=3）］，并且成功地将其应用于实际水样的检测，其加标回收率在98%~101%之间. 该电化学传感器不仅表现出较高的准确性和灵敏度，而且还具有较好的选择性和稳定性.
Abstract:
An efficient electrochemical sensor based on the functionalized ultra-thin graphene nanosheets was fabricated，where the graphene nanosheets were prepared by an exfoliating technique with the exfoliation solvent （N，N-dimethylformamide） and the auxiliary agent （sodium citrate）. The resulting samples were characterized by transmission electron microscopy. The result indicated that in comparison with bulk materials，the resulting samples were thinner graphene nanosheets with monolayer or few layers. Tetrabromobisphenol A（TBBPA） electrochemical sensor with high sensitivity was developed by using the functionalized graphene nanosheets after a series of optimization of the ultrasonic time，graphene mass concentration and solution pH . Electrochemical impedance spectroscopy showed that the electrochemical sensor exhibited a faster electron transfer rate. Moreover，the functionalized graphene nanosheets electrochemical sensor displayed linear range （0.1 μmol/L- 14 μmol/L） and a lower limit of detection ［5×10-8 mol/L （S/N=3）］ for TBBPA，respectively. And the fabricated electrochemical sensor was successfully applied in the detection of real water samples，and the recoveries were between 98% and 101%. In addition，this electrochemical sensor also exhibited good accuracy sensitivity，selectivity and stability.

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备注/Memo

备注/Memo:
收稿日期：2017-08-28 基金项目：国家自然科学基金（21471122）；武汉工程大学研究生创新基金（2016171） 作者简介：吴生丽，硕士研究生. E-mail：[email protected]
更新日期/Last Update: 2017-10-25