Chitosan Stabilized Multi-Walled Carbon Nanotubes for Electrochemical Determination of Dihydroxybenzene Isomers

被引：29

作者：

Kokulnathan, Thangavelu ^{[1
]}

Raja, Nehru ^{[1
]}

Chen, Shen-Ming ^{[1
]}

Sukanya, Ramaraj ^{[1
]}

Thirumalraj, Balamurugan ^{[1
,2
]}

机构：

[1] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Electroanal & Bioelectrochem Lab, Taipei 106, Taiwan

[2] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 10607, Taiwan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2017年 / 164卷 / 13期

关键词：

GRAPHENE OXIDE; HYDROQUINONE; CATECHOL; RESORCINOL; COMPOSITE; SENSOR; NANOCOMPOSITE; NANOFIBERS; ELECTRODE; BEHAVIOR;

D O I：

10.1149/2.1571713jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We report a novel electrochemical sensor for the determination of dihydroxybenzene isomers using a chitosan (CS)-stabilized multiwalled carbon nanotube (f-MWCNT)-modified electrode. The CS/f-MWCNT composite was characterized by various physiochemical techniques and discussed in details. The CS/f-MWCNT-modified electrode shows an excellent electrocatalytic activity towards the simultaneous detection of hydroquinone (HQ), catechol (CC) and resorcinol (RC) due to the active amino and hydroxyl functional groups of CS and f-MWCNT. In addition, the CS/f-MWCNT-modified electrode exhibits wide linear response ranges for HQ, CC and RC concentrations of 0.09-171.4 mu M, 0.09-155.43 mu M and 0.3-174.82 mu M, respectively. In addition, the CS/f-MWCNT-modified electrode also achieved a lower detection limit (LOD) of 0.027 mu M, 0.029 mu M and 0.11 mu M for HQ, CC and RC, respectively. Moreover, the practical applicability of the CS/f-MWCNT-modified electrode can be applied for the determination of HQ, CC and RC in different water samples, and it exhibits satisfactory recovery and RSD values. (c) 2017 The Electrochemical Society. All rights reserved.

引用

页码：H958 / H966

页数：9

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