Effect of deposition time on gold nanodendrite porous structure and on signals of Hg(II) in environment
Keywords:Gold nanodendrite, deposition time, surface structure, electrochemical properties, mercury
The influences of deposition time (tdep) for Au nanodendrite preparation on carbon cloth electrodes on the surface structure, electrochemical behavior and voltammetric signal for Hg(II) detection have been studied. The obtained results showed that from 60 s to 300 s, the longer deposition time, the larger dendrite length as well as the more increased density of dendrite structure became. Calculated from data showed that the electroactive surface area approached to the maximum value of 3.686 cm2 with tdep = 300 s. The typical electrochemical behaviour of the prepared electrodes was mass transfer diffusion to the electrode surface and being considered as planar diffusion. Using DPASV technique, the peak height of Hg(II) could appoach to 52 µA with tdep = 60 s.
Keywords. Gold nanodendrite, deposition time, surface structure, electrochemical properties, mercury.
Lin Cui, Jie Wu & Huangxian Ju. Electrochemical sensing of heavy metal ions with inorganic, organic and bio-materials, Biosensors and Bioelectronics, 63, 276-286 (2015).
Gabriel Billon & Constant M G van den Berg. Gold and Silver Micro-Wire Electrodes for Trace Analysis of Metals, Electroanalysis, 16(19), 1583-1591 (2004).
Ricardo D. Riso, Matthieu Waeles, Philippe Monbet, et al. Measurements of trace concentrations of mercury in sea water by stripping chronopotentiometry with gold disk electrode: influence of copper, Analytica Chimica Acta, 410(1-2), 97-105 (2000).
Kevin C. Honeychurch. Screen-printed Electrochemical Sensors and Biosensors for Monitoring Metal Pollutants, Insciences J., 2(1), 1-51 (2012).
Grigore Munteanu, Sorin Munteanu & David O. Wipf. Rapid determination of zeptomole quantities of Pb2+ with the mercury monolayer carbon fiber electrode, Journal of Electroanalytical Chemistry, 632(1-2), 177-183 (2009).
Muniyandi Rajkumar, Soundappan, Thiagarajan et al. Electrochemical Detection of Arsenic in Various Water Samples, Int. J. Electrochem. Sci., 6, 3164 - 3177 (2011).
Bengi Uslu & Sibel A. Ozkan. Solid Electrodes in Electroanalytical Chemistry: Present Applications and Prospects for High Throughput Screening of Drug Compounds, Combinatorial Chemistry & High Throughput Screening, 10, 495-513 (2007).
Y. Bonfil, M. Brand & E. Kirowa-Eisner. Trace determination of mercury by anodic stripping voltammetry at the rotating gold electrode, Analytica Chimica Acta, 424(1), 65-76 (2000).
Agnese Giacomino, Ornella Abollino, Mery Malandrino et al. Parameters affecting the determination of mercury by anodic stripping voltammetry using a gold electrode, Talanta, 75(1), 266-273 (2008).
Georgina M. S. Alves, Júlia M. C. S. Magalhães, Pascal Salaün et al. Simultaneous electrochemical determination of arsenic, copper, lead and mercury in unpolluted fresh waters using a vibrating gold microwire electrode, Analytica Chimica Acta, 703(1), 1-7 (2011).
Tran Ngoc Huan, Thothadri Ganesh, Kwang Soo Kim et al. A three-dimensional gold nanodendrite network porous structure and its application for an electrochemical sensing, Biosensors and Bioelectronics, 27(1), 183-186 (2011).
Tribidasari Anggraningrum Ivandini1, Lany Wijaya, Jarnuzi Gunlazuardi et al. Modification of Gold Nanoparticles at Carbon Electrodes and the Applications for Arsenic (III) Detections, Makara Journal of Science, 16(1), 9-14 (2012).
Olga Ordeig, Craig E. Banks, Javier del Campo, et al. Trace Detection of Mercury(II) Using Gold Ultra-Microelectrode Arrays, Electroanalysis, 18(6), 573-578 (2006).
Xuan Dai & Richard G. Compton. Gold Nanoparticle Modified Electrodes Show a Reduced Interference by Cu(II) in the Detection of As(III) Using Anodic Stripping Voltammetry, Electroanalysis, 17(14), 1325-1330 (2005).
Minh-Phuong Ngoc Bui, Cheng Ai Li, Kwi Nam Han et al. Simultaneous detection of ultratrace lead and copper with gold nanoparticles patterned on carbon nanotube thin film, Analyst, 137(8), 1888-1894 (2012).
Micheál D. Scanlon, Urszula Salaj-Kosla, Serguei Belochapkine et al. Characterization of Nanoporous Gold Electrodes for Bioelectrochemical Applications, Langmuir, 28(4), 2251-2261 (2012).
Pham Thi Hai Yen, Vu Thi Thu Ha, Pham Khac Duy, et al. Investigation of electrochemical properties of homemade nano gold electrodes and application in determination of Hg(II) at the trace levels, Vietnam Journal of Chemistry, 53(3), 657-662 (2015).
Richard G Compton & Craig E. Banks, Understanding Voltammetry (2nd Edition), Imperial College Press (2010).
Anton Ressine, Cristina Vaz-Domínguez, Victor M. Fernandez et al. Bioelectrochemical studies of azurin and laccase confined in three-dimensional chips based on gold-modified nano-/microstructured silicon, Biosensors and Bioelectronics, 25(5), 1001-1007 (2010).