Electrochemical removal of CI Acid orange 10 from aqueous solutions

被引:105
作者
Muthukumar, M.
Karuppiah, M. Thalamadai
Raju, G. Bhaskar
机构
[1] CSIR, Madras Ctr, Natl Metallurg Lab, Madras 600113, Tamil Nadu, India
[2] Bharathiar Univ, Dept Environm Sci, Coimbatore 641046, Tamil Nadu, India
[3] Cent Groundwater Board, Madras 600090, Tamil Nadu, India
关键词
Cl acid orange 10; electrocoagulation; electro-oxidation; dye removal; reductive cleavage; TOC reduction;
D O I
10.1016/j.seppur.2006.11.014
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The removal of CI Acid orange 10 from aqueous solutions was studied by electrocoagulation and electrooxidation techniques. For electrocoagulation, metallic iron was used as electrodes whereas graphite and lrO(2)/TaO2/RuO2 coated titanium were used in the case of electrooxidation. During electro-coagulation, the Cl Acid orange 10 molecule was split into aniline and 1-amino-2-naphthol-6,8-disulfonic acid due to reductive cleavage of azo bond. The latter was found to co-precipitate with iron oxy-hydroxide whereas aniline remained in aqueous phase. The zeta-potential measurements and FT-IR spectroscopic studies have revealed the chemical interaction between 1-amino-2-naphthol-6,8-disulfonic acid and iron oxy-hydroxide which formed as a result of anodic dissolution. De-colorization and degradation of the dye was followed using UV-Vis spectroscopy, GC-MS and TOC measurements. The CI Acid orange 10 was completely oxidized and removed with graphite electrodes. However the oxidation was only partial with IrO2/TaO2/RuO, coated titanium electrodes. The effect of initial pH and current density on the removal of CI Acid orange 10 was discussed. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:198 / 205
页数:8
相关论文
共 27 条
  • [1] COMNINELLIS C, 1995, J APPL ELECTROCHEM, V25, P23
  • [2] FORMATION OF HYPOCHLORITE, CHLORATE AND OXYGEN DURING NACL ELECTROLYSIS FROM ALKALINE-SOLUTIONS AT AN RUO2/TIO2 ANODE
    CZARNETZKI, LR
    JANSSEN, LJJ
    [J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 1992, 22 (04) : 315 - 324
  • [3] Decolorization of orange II by electrocoagulation method
    Daneshvar, N
    Ashassi-Sorkhabi, H
    Tizpar, A
    [J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2003, 31 (02) : 153 - 162
  • [4] Ozonation of two acidic azo dyes with different substituents
    Demirev, A
    Nenov, V
    [J]. OZONE-SCIENCE & ENGINEERING, 2005, 27 (06) : 475 - 485
  • [5] Electrochemical degradation of C. I. Acid Orange 7
    Fernandes, A
    Morao, A
    Magrinho, M
    Lopes, A
    Gonçalves, I
    [J]. DYES AND PIGMENTS, 2004, 61 (03) : 287 - 296
  • [6] Goyal RN, 1998, CROAT CHEM ACTA, V71, P715
  • [7] Electrolytic decomposition of amaranth dyestuff using diamond electrodes
    Hattori, S
    Doi, M
    Takahashi, E
    Kurosu, T
    Nara, M
    Nakamatsu, S
    Nishiki, Y
    Furuta, T
    Iida, M
    [J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 2003, 33 (01) : 85 - 91
  • [8] Treatment of dyeing wastewater with ACF electrodes
    Jia, JP
    Yang, J
    Liao, J
    Wang, WH
    Wang, ZJ
    [J]. WATER RESEARCH, 1999, 33 (03) : 881 - 884
  • [9] Treatment of textile wastewaters by electrocoagulation using iron and aluminum electrodes
    Kobya, M
    Can, OT
    Bayramoglu, M
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2003, 100 (1-3) : 163 - 178
  • [10] Continuous treatment of textile wastewater by combined coagulation, electrochemical oxidation and activated sludge
    Lin, SH
    Peng, CF
    [J]. WATER RESEARCH, 1996, 30 (03) : 587 - 592