采用氧化铅/钛修饰电极通过电化学降解从水中去除邻硝基苯酚。
Removal of o-nitrophenol from water by electrochemical degradation using a lead oxide/titanium modified electrode.
作者信息
Zaggout Farid R, Abu Ghalwa Nasser
机构信息
Chemistry Department, Al-Azhar University-Gaza, P.O. Box 1277, PNA-Via, Israel.
出版信息
J Environ Manage. 2008 Jan;86(1):291-6. doi: 10.1016/j.jenvman.2006.12.033. Epub 2007 Feb 6.
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.
本研究考察了采用改性电极通过电化学氧化从水溶液中去除邻硝基苯酚的情况。该改性电极是通过在钛基底上电沉积氧化铅制备而成。对含邻硝基苯酚的溶液进行电化学氧化后，测定了剩余的邻硝基苯酚浓度和化学需氧量（COD）值。最佳参数为电流密度40 mA cm⁻²、pH值2.47、电解时间60分钟、4 g L⁻¹氯化钠电解质溶液以及温度30℃。在使用氧化铅/钛改性电极进行电化学降解的这些最佳条件下，实现了邻硝基苯酚和COD的完全去除。
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