Capacitive Deionization (CDI): An Environmentally Friendly Water Purification Technique
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Abstract
A porous carbon electrode for capacitive deionization was prepared by a simple screen printing technique. Polymeric binder suspension was utilized to form a solid activated carbon-based electrode. The prepared carbon electrode electrochemical property and specific capacitance were analyzed using a three-electrode cyclic voltammetry system. The specific capacitance of the developed electrode was almost identical even at various set scan rate and NaCl solution concentration, an indication of the electrode having constant ion adsorption capacity. Thus validated the experimental results, which clearly showed that the ion adsorption capacity of the fabricated electrode presents slight difference at different NaCl solution concentrations, wherein the highest ion adsorption capacity of 6.2 mg/g was achieved in 818 mg/L NaCl solution initial concentration.
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References
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