Electrochemical removal of CI Acid orange 10 from aqueous solutions

Muthukumar, M.; Muthu, K.; Raju, G Bhaskar

doi:10.1016/j.seppur.2006.11.014

Cited by 105 publications

(57 citation statements)

References 27 publications

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“…1,2 Textile wastewater is characterized mainly by its intense color and high organic load, due to non-reacted dyestuff. Synthetic dye molecules are by design chemically stable and thus can remain in the environment for long periods, 3 eventually causing severe aquatic 4 and health problems. 5 Hence the need to use and implement methods to remove these pollutants from textile wastewater before they are discharged.…”

Section: Introductionmentioning

confidence: 99%

“…6,18,23 The possible formation of undesirable chloro-organic derivatives is a known drawback of electrooxidation processes in chloride-containing solutions, although very few papers have actually reported these compounds. 24 Undesirable inorganic compounds, such as ClO 4 -ions, which are mainly formed in electrooxidations using BDD anodes, also represent serious health problems. 25 PbO 2 film anodes are interesting materials for the electrochemical degradation of pollutants due to their medium to high oxidation power, easiness of preparation, and low cost.…”

Section: Introductionmentioning

confidence: 99%

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A comparison of electrodeposited Ti/β-PbO2 and Ti-Pt/β-PbO2 anodes in the electrochemical degradation of the direct yellow 86 dye

Aquino¹,

Irikura²,

Rocha‐Filho³

et al. 2010

Quím. Nova

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The electrochemical performance of electrodeposited Ti/β-PbO 2 and Ti-Pt/β-PbO 2 anodes was galvanostatically evaluated (batch mode, 50 mA cm -2 ) to degrade the Direct Yellow 86 dye (100 or 200 mg L -1 in 0.1 mol L -1 Na 2 SO 4 + 1.5 g L -1 NaCl), investigating the effect of pH and temperature. Similar results were obtained for both electrodes and the best conditions for removal of color and chemical oxygen demand are pH 7 and 40 °C, when 90% decolorization is attained by passing a charge of only ~0.13 A h L -1 and total mineralization is achieved with expenditure of ~5 kW h m -3 .

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A comparison of electrodeposited Ti/β-PbO2 and Ti-Pt/β-PbO2 anodes in the electrochemical degradation of the direct yellow 86 dye

Aquino¹,

Irikura²,

Rocha‐Filho³

et al. 2010

Quím. Nova

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“…It may moreover be famous that the arrangement pH moved to fundamental run which may be ascribed to the cathodic diminishment of water atoms and chemical disintegration of press cathode expanded the pH esteem (Muthukumar et al, 2007).…”

Section: Effect Of Initial Phmentioning

confidence: 99%

Electrochemical Degradation of Remazol Red Rb 133 Using Sacrificial Electrodes

Rekha

Murthy

2018

mijst

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“…They are also considered as dyes with the largest shade range and are commonly used [5]. They account for 60% to 70% of the total organic dyes, have bright and high colour intensity, extensively used in textile, food, drug, cosmetic, automobile, leather and in the paper making industries [6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Voltammetric Determination of Reactive Black 5 (Rb5) in Waste Water Samples From the Batik Industry

Yaacob¹

2016

MJAS

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A cyclic voltammetry (CV) and differential pulse cathodic stripping voltammetry (DPCSV) studies of RB5 in Britton-Robinson buffer (BRB) at a hanging mercury dropping electrode (HMDE) are described. CV was carried out by cathodic and anodic potential scan over the range of +200 mV to -800 mV with no accumulation time and three well-defined pH-dependent cathodic peaks were observed. The effects of different scan rates, pH of BRB, repetitive cycle and increasing concentrations on the peak height and peak potential of the analyte were studied. The results showed that RB5 dye was adsorbed and irreversibly reduced at the mercury electrode, mainly under diffusion controlled in the optimum pH 4.0 of BRB. By using DPCSV, pH of BRB and various instrumental parameters such as scan rate, accumulation time, accumulation potential and pulse amplitude that may affect the peak height of RB5 were investigated and optimized for RB5 determination. Under the optimized parameters, the peak height was found to be linear with RB5 concentration in the range from 2.5 x 10 -7 mol L -1 to 2.0 x 10 -6 mol L -1 . A detection limit (3SD/m) of 1.3 x 10 -8 mol L -1 was achieved. The precision of the developed method in terms of RSD was 0.55% for intra-day measurement and 0.55%, 0.24% and 0.40%, for inter-day measurements, respectively. The developed method was successfully applied in the determination of RB5 in batik wastewaters with the mean recovery of 83.97 ± 4.78% to 97.93 ± 5.45% (0.5 x 10 -6 mol L -1 ), 95.91 ± 2.68% to 103.49 ± 1.32% (1.0 x 10 -6 mol L -1 ) and 99.17 ± 0.75% to 105.12 ± 0.28% (2.0 x 10 -6 mol L -1 ). The developed method is considered sensitive, precise, accurate, rugged, robust, fast and low cost for routine analysis of RB5 dye in batik wastewaters over the UV-VIS spectrometry method.Keywords: Reactive Black 5, differential pulse cathodic stripping, Britton-Robinson buffer, hanging mercury dropping electrode, batik wastewater samples Abstrak Kajian voltammetri berkitar (CV) dan voltammetri perlucutan denyut kebezaan (DPCSV) terhadap pewarna RB5 dalam larutan penimbal Britton-Robinson (BRB) menggunakan elektrod jatuhan raksa tergantung (HMDE) dihuraikan. CV dijalankan dengan mengimbas potential kathodik dan anodik dari +200 mV ke -800 mV tanpa masa pengumpulan dan tiga puncak diperhatikan selepas imbasan. Kesan perbezaan kadar imbasan, pH BRB, imbasan berkitar yang berulang dan peningkatan kepekatan RB5 ke atas ketinggian dan nilai keupayaan puncak dikaji. RB5 yang dijerap dan diturunkan secara tidak berbalik pada permukaan elektrod merkuri adalah dibawah kawalan difusi pada pH BRB yang optimum iaitu 4.0. Dengan menggunakan DPCSV, pH BRB dan parameter-parameter peralatan yang memberi kesan kepada ketinggian puncak seperti kadar imbasan, masa pengumpulan, keupayaan pengumpulan dan amplitud denyut telah dioptimumkan untuk analisis RB5. Ketinggian puncak berkadar terus dengan kepekatan RB5 dalam julat dari 2.5 x 10 -7 mol L -1 hingga 2.0 x 10 -6 mol L -1 . Had pengesanan adalah 1.3 x 10 -8 mol L -1 . Ketepatan (RSD...

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Electrochemical removal of CI Acid orange 10 from aqueous solutions

Cited by 105 publications

References 27 publications

A comparison of electrodeposited Ti/β-PbO2 and Ti-Pt/β-PbO2 anodes in the electrochemical degradation of the direct yellow 86 dye

A comparison of electrodeposited Ti/β-PbO2 and Ti-Pt/β-PbO2 anodes in the electrochemical degradation of the direct yellow 86 dye

Electrochemical Degradation of Remazol Red Rb 133 Using Sacrificial Electrodes

Voltammetric Determination of Reactive Black 5 (Rb5) in Waste Water Samples From the Batik Industry

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