Removal of o-nitrophenol from water by electrochemical degradation using a lead oxide/titanium modified electrode |
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Authors: | Zaggout Farid R Abu Ghalwa Nasser |
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Institution: | Chemistry Department, Al-Azhar University-Gaza, P.O. Box 1277, PNA-Via, Israel. zaggout2004@yahoo.com |
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Abstract: | This study examined o-nitrophenol removal from aqueous solutions by electrochemical oxidation employing a modified electrode. The modified electrode was produced by electrodepositing lead oxide onto a titanium substrate. Following electrochemical oxidation of o-nitrophenol-containing solutions, the remaining o-nitrophenol concentration and chemical oxygen demand (COD) values were determined. The optimum parameters were current density of 40 mA cm(-2), pH of 2.47, 60 min of electrolysis time, 4 g L(-1) NaCl electrolyte solution and temperature of 30 degrees C. Under these optimum conditions of electrochemical degradation using a lead oxide/titanium modified electrode complete removal of o-nitrophenol and COD was achieved. |
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Keywords: | Modified electrode o-nitrophenol Electrochemical oxidation Wastewater treatment |
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