Electrolytic decomposition of amaranth dyestuff using diamond electrodes

被引：58

作者：

Hattori, S

Doi, M

Takahashi, E

Kurosu, T

Nara, M

Nakamatsu, S

Nishiki, Y

Furuta, T

Iida, M

机构：

[1] Permelec Electrode Ltd, Dept Dev, Fujisawa, Kanagawa 2520816, Japan

[2] Tokai Univ, Sch Informat Technol & Elect, Dept Elect, Hiratsuka, Kanagawa 25912, Japan

[3] Tokai Univ, Jr Coll, Hiratsuka, Kanagawa 25912, Japan

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2003年 / 33卷 / 01期

关键词：

amaranth; electrolytic decomposition; decolourizing rate; diamond electrode; TOC change;

D O I：

10.1023/A:1022945714152

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrolytic decomposition of an amaranth dyestuff solution using several combinations of electrodes with diamond and platinum is reported. It is observed that a portion of the amaranth is decomposed on the cathode surface while the other portion is decomposed to lower molecular weight components on the anode surface. The decolourizing rate is higher at diamond electrodes used as the anode and the cathode than with other combinations. This electrode combination also shows a rapid decrease in total organic carbon concentration. Acetic acid and oxalic acid are detected as the intermediate substances, and CO2 gas is generated as a final product corresponding to the decrease in the oxalic acid concentration.

引用

页码：85 / 91

页数：7

共 33 条

[1] Electrochemical oxidation of trans-3,4-dihydroxycinnamic acid at PbO2 electrodes:: direct electrolysis and ozone mediated reactions compared [J].