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electrochemical-coating
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A polypyrrole-based sorptive microextraction coating for preconcentration of malathion from aquatic media
, Article Chromatographia ; Volume 74, Issue 9-10 , 2011 , Pages 731-735 ; 00095893 (ISSN) ; Aghakhani, A ; Ayazi, Z ; Khakinezhad, M ; Sharif University of Technology
Abstract
A new micro-solid phase extraction method was developed by combining solid-phase extraction and stir bar sorptive extraction to benefit from the advantages of both techniques. A polypyrrole coating was electrochemically synthesized on the surface of an already used graphite furnace, employed in electro-thermal atomic absorption spectroscopy. The cylindrical geometry of the graphite tube provided a rather huge surface area, suitable for sorptive extraction. The novel sorbent coating was examined as an extracting medium to isolate malathion. Effects of different parameters such as extraction time, salt concentration, sample volume, desorption solvent and time were investigated and optimized....
Effects of chemical, electrochemical, and electrospun deposition of polyaniline coatings on surface of anode electrodes for evaluation of MFCs' performance
, Article Journal of Environmental Chemical Engineering ; Volume 8, Issue 5 , 2020 ; Yaghmaei, S ; Ghaderi, S ; Bayat, A ; Mardanpour, M. M ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
In this research, different coating methods of polyaniline (PANI) on the anode electrodes and their performance in microbial fuel cells (MFCs) were investigated. The performance of systems in a discontinuous state was studied using the high energy content dairy industry wastewater. The phase enrichment assessment was conducted under open circuit potential (OCP) and the performance of MFCs coated with PANI through three methods was evaluated via chemical oxygen demand (COD), polarization, power density, energy coulombic efficiency (ECE), coulombic efficiency (CE), and potential efficiency (PE) values. The results showed the maximum value for the power density of 28Wm-3, CE of 17%, and COD of...