One pot electrochemical synthesis of poly(melamine) entrapped gold nanoparticles composite for sensitive and low level detection of catechol

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:496

Article

Palanisamy, Selvakumar¹  Ramaraj, Sayee Kannan^2,5  Chen, Shen -Ming¹  Chiu, Te-Wei²  Velusamy, Vijayalakshmi³  Yang, Thomas C. K.⁴  Chen, Tse-Wei¹  Selvam, Sonadevi⁵ 

[1] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Electroanal & Bioelectrochem Lab, 1,Sect 3,Chung Hsiao East Rd, Taipei 106, Taiwan

[2] Natl Taipei Univ Technol, Dept Mat & Mineral Resources Engn, 1,Sec 3,Zhongxiao E Rd, Taipei 106, Taiwan

[3] Manchester Metropolitan Univ, Sch Engn, Div Elect & Elect Engn, Manchester M1 5GD, Lancs, England

[4] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, 1,Sect 3,Chung Hsiao East Rd, Taipei, Taiwan

[5] Thiagarajar Coll, Dept Chem, PG & Res, Madurai 09, Tamil Nadu, India

关键词: Poly(melamine);    Gold nanoparticles;    Electrochemical preparation;    Catechol;    Differential pulse voltammetry;   

DOI  :  10.1016/j.jcis.2016.12.062

来源: Elsevier

【 摘 要 】

A simple and cost effective synthesis of nanomaterials with advanced physical and chemical properties have received much attention to the researchers, and is of interest to the researchers from different disciplines. In the present work, we report a simple and one pot electrochemical synthesis of poly(melamine) entrapped gold nanoparticles (PM-AuNPs) composite. The PM-AuNPs composite was prepared by a single step electrochemical method, wherein the AuNPs and PM were simultaneously fabricated on the electrode surface. The as-prepared materials were characterized by various physicochemical methods. The PM-AuNPs composite modified electrode was used as an electrocatalyst for oxidation of catechol (CC) due to its well-defined redox behavior and enhanced electro-oxidation ability towards CC than other modified electrodes. Under optimized conditions, the differential pulse voltammetry (DPV) was used for the determination of CC. The DPV response of CC was linear over the concentration ranging from 0.5 to 175.5 mu M with a detection limit of 0.011 mu M. The PM-AuNPs composite modified electrode exhibits the high selectivity in the presence of range of potentially interfering compounds including dihydroxybenzene isomers. The sensor shows excellent practicality in CC containing water

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