Electrochemical determination of p-cresol using mesoporous TiO2-modified carbon paste electrode

被引：5

作者：

Zhang, Shenghui ^{[1
]}

机构：

[1] Hubei Inst Nationalities, Key Lab Biol Resources Protect & Utilizat Hubei P, Enshi 445000, Peoples R China

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2011年 / 47卷 / 11期

基金：

中国国家自然科学基金;

关键词：

p-cresol; 4-methylphenol; determination; electrochemistry; mesoporous TiO2; SENSOR;

D O I：

10.1134/S1023193511110164

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A mesoporous TiO2 (meso-TiO2) was synthesized, and used to prepare modified carbon paste electrode (CPE). The electrochemical sensing properties were characterized using K-3[Fe(CN)(6)], showing that meso-TiO2 modified CPE possesses larger surface area and higher electron transfer rate. The electrochemical behavior of p-cresol was investigated. At the meso-TiO2 modified CPE, the oxidation peak current of p-cresol remarkably increases, and the oxidation peak potential shifts negatively, suggesting that meso- TiO2 exhibits highly efficient catalytic activity to the oxidation of p-cresol. Based on this, a sensitive, rapid and convenient electrochemical method was developed for the detection of p-cresol. The linear range is from 1.5 x 10(-7) and 2.0 x 10(-5) mol l(-1), and the limit of detection is as low as 8.0 x 10(-8) mol l(-1). Finally, the new method was successfully used to determine p-cresol in water samples.

引用

页码：1257 / 1261

页数：5

共 14 条

[1] Quantitation of o-, m- and p-cresol and deuterated analogs in human urine by gas chromatography with electron capture detection [J].

Dills, RL ;

Bellamy, GM ;

Kalman, DA .

JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES, 1997, 703 (1-2) :105-113

[2] Magnetic fluorescent delivery vehicle using uniform mesoporous silica spheres embedded with monodisperse magnetic and semiconductor nanocrystals [J].

Kim, J ;

Lee, JE ;

Lee, J ;

Yu, JH ;

Kim, BC ;

An, K ;

Hwang, Y ;

Shin, CH ;

Park, JG ;

Kim, J ;

Hyeon, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (03) :688-689

[3] ORDERED MESOPOROUS MOLECULAR-SIEVES SYNTHESIZED BY A LIQUID-CRYSTAL TEMPLATE MECHANISM [J].

KRESGE, CT ;

LEONOWICZ, ME ;

ROTH, WJ ;

VARTULI, JC ;

BECK, JS .

NATURE, 1992, 359 (6397) :710-712

[4] An electrochemical sensor for Cd2+ based on the inducing adsorption ability of I- [J].

Li, Gang ;

Wan, Chidan ;

Ji, Zhiming ;

Wu, Kangbing .

SENSORS AND ACTUATORS B-CHEMICAL, 2007, 124 (01) :1-5

[5] Mesoporous Au/TiO2 nanocomposites with enhanced photocatalytic activity [J].

Li, Hexing ;

Bian, Zhenfeng ;

Zhu, Jian ;

Huo, Yuning ;

Li, Hui ;

Lu, Yunfeng .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (15) :4538-+

[6] Photoelectrochemical sensor for the rapid detection of in situ DNA damage induced by enzyme-catalyzed Fenton reaction [J].

Liang, Minmin ;

Jia, Suping ;

Zhu, Shengchao ;

Guo, Liang-Hong .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2008, 42 (02) :635-639

[7] Mesoporous-TiO2 nanoparticles based carbon paste electrodes exhibit enhanced electrochemical sensitivity for phenols [J].

Lin, Huogang ;

Ji, Xiaobo ;

Chen, Qiyuan ;

Zhou, Yikai ;

Banks, Craig E. ;

Wu, Kangbing .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (10) :1990-1995

[8] Synthesis of mesostructured titania with controlled crystalline framework [J].

Luo, HM ;

Wang, C ;

Yan, YS .

CHEMISTRY OF MATERIALS, 2003, 15 (20) :3841-3846

[9] Electron transport and recombination in dye-sensitized mesoporous TiO2 probed by photoinduced charge-conductivity modulation spectroscopy with Monte Carlo modeling [J].

Petrozza, Annamaria ;

Groves, Chris ;

Snaith, Henry J. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (39) :12912-12920

[10] Development of parthenium based activated carbon and its utilization for adsorptive removal of p-cresol from aqueous solution [J].

Singh, Ravi Kant ;

Kumar, Shashi ;

Kumar, Surendra ;

Kumar, Arinjay .

JOURNAL OF HAZARDOUS MATERIALS, 2008, 155 (03) :523-535

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