基于银纳米粒子/氧化石墨烯复合薄膜制备TNP电化学传感器

引用本文: 李俊华, 邝代治, 冯泳兰, 刘梦琴, 唐斯萍, 邓培红. 基于银纳米粒子/氧化石墨烯复合薄膜制备TNP电化学传感器[J]. 无机化学学报, 2013, 29(6): 1157-1164. doi: 10.3969/j.issn.1001-4861.2013.00.220 shu

Citation: LI Jun-Hua, KUANG Dai-Zhi, FENG Yong-Lan, LIU Meng-Qin, TANG Si-Ping, DENG Pei-Hong. Preparation of TNP Electrochemical Sensor Based on Silver Nanoparticles/Graphene Oxide Nanocomposite[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(6): 1157-1164. doi: 10.3969/j.issn.1001-4861.2013.00.220 shu

基于银纳米粒子/氧化石墨烯复合薄膜制备TNP电化学传感器

基金项目:
国家自然科学基金(No.21105024,201102040) (No.21105024,201102040)

湖南省教育厅科学研究基金(No.12C0536,10K010) (No.12C0536,10K010)

湖南省自然科学基金(13JJ3112) (13JJ3112)

功能金属有机材料湖南省高校重点实验室开放基金(No.11K02) (No.11K02)

湖南省重点建设学科资助项目。

摘要: 利用改进的Hummers法制备了氧化石墨烯(GO),以葡萄糖为还原剂直接在GO表面沉积银纳米粒子(AgNPs)得到性能稳定的AgNPs/GO纳米复合材料;基于该纳米复合材料修饰电极构建了一种新型的2,4,6-三硝基苯酚(TNP)电化学传感器。采用原子力显微镜(AFM)、扫描电镜(SEM)、透射电镜(TEM)、紫外可见光谱(UV-Vis)和交流阻抗(EIS)等多种方法对纳米复合薄膜进行了表征;并研究了TNP在复合薄膜修饰电极上的电化学行为和动力学性质。结果表明,AgNPs/GO对TNP有较强的电催化活性,在复合薄膜修饰电极出现一灵敏的氧化峰和3个还原峰;利用氧化峰可对TNP进行定量分析。同时整个电极过程明显不可逆,电极反应受到吸附步骤控制;复合膜电极表面覆盖度为5.617×10^-8 mol·cm^-2,在所研究电位下的速率常数为9.745×10^-5 cm·s^-1。在pH 6.8的磷酸缓冲液中,当富集电位为-0.70 V,富集时间为60 s;TNP氧化峰电流与其浓度在5.0×10^-9～1.0×10^-7 mol·L^-1范围内成良好线性关系,相关系数为0.995 8,检出限可达1.0×10^-9 mol·L^-1。所制备的电化学传感器稳定性和选择性较好;用于实际水样中TNP的现场快速检测,加标回收率在97.6%～103.9%之间。

关键词:

氧化石墨烯;银纳米颗粒;2,4,6-三硝基苯酚;电化学传感器

English

Preparation of TNP Electrochemical Sensor Based on Silver Nanoparticles/Graphene Oxide Nanocomposite

1.
1. Department of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, China;
Received Date: 21 November 2012
Fund Project:
国家自然科学基金(No.21105024,201102040)

湖南省教育厅科学研究基金(No.12C0536,10K010)

湖南省自然科学基金(13JJ3112)

功能金属有机材料湖南省高校重点实验室开放基金(No.11K02)

湖南省重点建设学科资助项目。

Abstract: Graphene oxide (GO) was prepared by a modified Hummers process, and then silver nanoparticles (AgNPs) were directly deposited on the surface of GO using glucose as reducing agent; finally nanocomposite of AgNPs/GO with good stability was obtained. A novel 2,4,6-trinitrophenol (TNP) electrochemical sensor was fabricated based on the prepared nanocomposite modified electrode. The nanocomposite was characterized by atomic force microscope (AFM), scanning electron microscope (SEM), transmission electron microscope (TEM), UV-Vis spectroscopy (UV-Vis) and alternating current impedance (EIS), and the electrochemical behaviors and kinetic properties of TNP on the modified electrode were also investigated. The experimental results showed that a sensitive oxidation peak and three reduction peaks of TNP appeared at the nanocomposite modified electrode. The oxidation peak can be used for quantitative analysis of TNP. Moreover, the whole electrode process was obviously irreversible, and electrode reaction was controlled by the adsorption step. The surface coverage of nanocomposite modified electrode was 5.617×10^-8 mol·cm^-2, and the rate constant was 9.745×10^-5 cm·s^-1 at the fixed potential. In pH 6.8 phosphate buffer, the oxidation peak currents of TNP were linearly dependent on its concentrations in the range of 5.0×10^-9～1.0×10^-7 mol·L^-1 with accumulation time of 60 s at -0.70 V. The correlation coefficient was 0.995 8 and the detection limit was 1.0×10^-9 mol·L^-1. The prepared electrochemical sensor had preferable stability and selectivity, and it could be applied to the quick determination of TNP in real water samples, and the recovery was from 97.6% to 103.9%.

Key words:

graphene oxide;silver nanoparticles;2,4,6-trinitrophenol;electrochemical sensor

1. [1] Aysem U, Erol E, Resat A. Anal. Chim. Acta, 2004,505(1): 83-93[1] Aysem U, Erol E, Resat A. Anal. Chim. Acta, 2004,505(1): 83-93
2. [2] Yang R H, Wang K M, Xiao D, et al. Analyst, 2000,125: 877-882[2] Yang R H, Wang K M, Xiao D, et al. Analyst, 2000,125: 877-882
3. [3] WANG Ruo-Yan(王若燕), ZHOU Xiao-Ping(周晓萍), DU Sai(杜赛), et al. Chinese J. Health Lab. Technol.(Zhongguo Weisheng Jianyan Zazhi), 2010,20(6):1362-1363[3] WANG Ruo-Yan(王若燕), ZHOU Xiao-Ping(周晓萍), DU Sai(杜赛), et al. Chinese J. Health Lab. Technol.(Zhongguo Weisheng Jianyan Zazhi), 2010,20(6):1362-1363
4. [4] FU Zhou-Zhou(付周周), REN Xiao-Na(任小娜), ZHOU Xiu- Ying(周秀英), et al. Phys. Test. Chem. Anal.(Lihua Jianyan), 2009,45(3): 270-275[4] FU Zhou-Zhou(付周周), REN Xiao-Na(任小娜), ZHOU Xiu- Ying(周秀英), et al. Phys. Test. Chem. Anal.(Lihua Jianyan), 2009,45(3): 270-275
5. [5] Novoselov K S, Geim A K, Morozov S V, et al. Science, 2004,306(5296):666-669[5] Novoselov K S, Geim A K, Morozov S V, et al. Science, 2004,306(5296):666-669
6. [6] Chen C M, Zhang Q, Yang M G, et al. Carbon, 2012,50(10): 3572-3584[6] Chen C M, Zhang Q, Yang M G, et al. Carbon, 2012,50(10): 3572-3584
7. [7] JIN Li(金莉), SUN Dong(孙东), ZHANG Jian-Rong(张剑荣). Chinese J. Inorg. Chem.(Wuji Huaxue Xuebao), 2012,28(6): 1084-1090[7] JIN Li(金莉), SUN Dong(孙东), ZHANG Jian-Rong(张剑荣). Chinese J. Inorg. Chem.(Wuji Huaxue Xuebao), 2012,28(6): 1084-1090
8. [8] Shi Y, Wu J, Sun Y, et al. Biosens. Bioelectron., 2012,38(1): 31-36[8] Shi Y, Wu J, Sun Y, et al. Biosens. Bioelectron., 2012,38(1): 31-36
9. [9] GAO Yuan(高原), LI Yan(李艳), SU Xing-Guang(苏星光). Chinese J. Anal. Chem.(Fenxi Huaxue), 2013,41(2):174-180[9] GAO Yuan(高原), LI Yan(李艳), SU Xing-Guang(苏星光). Chinese J. Anal. Chem.(Fenxi Huaxue), 2013,41(2):174-180
10. [10] Li J H, Kuang D Z, Feng Y L, et al. J. Hazard. Mater., 2012,201-202:250-259[10] Li J H, Kuang D Z, Feng Y L, et al. J. Hazard. Mater., 2012,201-202:250-259
11. [11] LU Xian-Chun(卢先春), HUANG Ke-Jing(黄克靖), WU Zhi -Wei(吴志伟), et al. Chinese J. Anal. Chem.(Fenxi Huaxue), 2012,40(3):452-456[11] LU Xian-Chun(卢先春), HUANG Ke-Jing(黄克靖), WU Zhi -Wei(吴志伟), et al. Chinese J. Anal. Chem.(Fenxi Huaxue), 2012,40(3):452-456
12. [12] WAN Chen(万臣), PENG Tong-Jiang(彭同江), SUN Hong- Juan(孙红娟), et al. Chinese J. Inorg. Chem.(Wuji Huaxue Xuebao), 2012,28(5):915-921[12] WAN Chen(万臣), PENG Tong-Jiang(彭同江), SUN Hong- Juan(孙红娟), et al. Chinese J. Inorg. Chem.(Wuji Huaxue Xuebao), 2012,28(5):915-921
13. [13] Hummers W S, Offeman R E. J. Am. Chem. Soc., 1958,80: 1339[13] Hummers W S, Offeman R E. J. Am. Chem. Soc., 1958,80: 1339
14. [14] WANG Yue-Hui(王悦辉), ZHANG Qi(张琦), WANG Ting (王婷), et al. Chinese J. Inorg. Chem.(Wuji Huaxue Xuebao), 2010,26(3):365-373[14] WANG Yue-Hui(王悦辉), ZHANG Qi(张琦), WANG Ting (王婷), et al. Chinese J. Inorg. Chem.(Wuji Huaxue Xuebao), 2010,26(3):365-373
15. [15] Cao L, Sun H, Li J, et al. Anal. Methods, 2011,3:1587-1594[15] Cao L, Sun H, Li J, et al. Anal. Methods, 2011,3:1587-1594
16. [16] Bard A J, Faulkner L R. Electrochemical Methods, Funda- mentals and Applications. New York: Wiley, 2001:230-231[16] Bard A J, Faulkner L R. Electrochemical Methods, Funda- mentals and Applications. New York: Wiley, 2001:230-231
17. [17] Anson F. Anal. Chem., 1966,38(1):54-57[17] Anson F. Anal. Chem., 1966,38(1):54-57
18. [18] ZHAO Peng(赵鹏), FANG Hui-Jue(方慧珏), XUE Teng(薛腾), et al. Acta Phys.-Chim. Sin.(Wuli Huaxue Xuebao), 2005,21(11):1235-1239.[18] ZHAO Peng(赵鹏), FANG Hui-Jue(方慧珏), XUE Teng(薛腾), et al. Acta Phys.-Chim. Sin.(Wuli Huaxue Xuebao), 2005,21(11):1235-1239.
19. [19] LI Jun-Hua(李俊华), KUANG Dai-Zhi(邝代治), FENG Yong-Lan(冯泳兰), et al. Chinese J. Anal. Chem.(Fenxi Huaxue), 2011,39(12):1864-1870[19] LI Jun-Hua(李俊华), KUANG Dai-Zhi(邝代治), FENG Yong-Lan(冯泳兰), et al. Chinese J. Anal. Chem.(Fenxi Huaxue), 2011,39(12):1864-1870
20. [20] Laviron E. J. Electroanal. Chem., 1979,100:263-270[20] Laviron E. J. Electroanal. Chem., 1979,100:263-270
21. [21] Laviron E. J. Electroanal. Chem., 1979,101:19-28[21] Laviron E. J. Electroanal. Chem., 1979,101:19-28
22. [22] Christie J H, Lauer G, Osteryoung R A, et al. Anal. Chem., 1963,35(12):1979[22] Christie J H, Lauer G, Osteryoung R A, et al. Anal. Chem., 1963,35(12):1979

扫一扫看文章

计量

PDF下载量: 419
文章访问数: 678
HTML全文浏览量: 106

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

基于银纳米粒子/氧化石墨烯复合薄膜制备TNP电化学传感器

English

Preparation of TNP Electrochemical Sensor Based on Silver Nanoparticles/Graphene Oxide Nanocomposite

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

计量

通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

基于银纳米粒子/氧化石墨烯复合薄膜制备TNP电化学传感器

English

Preparation of TNP Electrochemical Sensor Based on Silver Nanoparticles/Graphene Oxide Nanocomposite

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

计量

文章相关

通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

CCS Chemistry：颜徐州、鲍哲南：你的皮肤可能是一片SPMs