A Photoelectrocatalytic Method Using Highly Ordered TiO2 Nanotube Array for Determination of Surface Water

被引：3

作者：

Dong Chao-Ping ^{[1
]}

Zhang Jia-Ling ^{[1
]}

Li Jin-Hua ^{[1
]}

Chen Hong-Chong ^{[1
]}

Zhou Bao-Xue ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2010年 / 38卷 / 08期

关键词：

Photoelectrocatalysis; Chemical oxygen demand; Thin-cell reactor; Titanium oxide; Nanotube array electrode; CHEMICAL OXYGEN-DEMAND; PHOTOCATALYTIC OXIDATION SYSTEM;

D O I：

10.3724/SP.J.1096.2010.01227

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The highly effective TiO2 nanotube arrays (TNAs) has excellent photoelectrocatalytic properties. A novel method for COD determination of surface water in a thin-cell reactor using a TNAs electrode was described. The result showed that this method can be used to accurately determine COD in a short time. The linear equation was as follows; y = -0.18105x +0.15444, r = 0.9903, with a detection limit of 0.30 mg/L and a suitable pH range of 4 - 10. The COD value was independent of the concentration of Ccl-, the time of determination was less than 2 min and the RSD is less than 5%. When this method was applied to determine the COD of wastewater samples, the disadvantages of potassium dichromate method (CODCr) and potassium permanganate method (CODMn) can be overcome.

引用

页码：1227 / 1230

页数：4

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