Development of an electrochemical cell for the removal of Reactive Black 5

Rivera, M.; Pazos, Marta; Sanromán, M.A.

doi:10.1016/j.desal.2011.01.074

Cited by 63 publications

(37 citation statements)

References 24 publications

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“…Under these conditions, TOC removal increased according to process time and attained values of 40, 73, 94 and 100%, respectively, after 120, 240, 360 and 480 min electrolysis (Table A. 1), while total color removal was reached after 40 min. These findings are in agreement with those of Rivera et al [34], who reported that total color removal of RB5 occurred at a much higher rate than TOC removal. The reason for this behavior is that the chromophoric groups are easily ruptured, while breakdown of the aromatic fragments occurs more slowly such that a prolonged electrolysis time is required to mineralize RB5 completely.…”

Section: Extensive Electrolysissupporting

confidence: 95%

“…RB5 has been chosen as a model organic pollutant by a number of researchers, and details are available concerning degradation of the dye by electro-assisted Fenton and Fentonlike oxidation [4,[22][23][24][25], photo-electrochemical [26,27] and electro-coagulation [28] processes, electrochemical reduction [29][30][31][32], and electrochemical oxidation with Ti/SnO2-SbPt [3], Pt [33], graphite [34] and Pt/Ti [35] electrodes. However, very few studies have focused on the application of BDD as electrodic material for the removal of RB5.…”

Section: [Figure 1 Near Here]mentioning

confidence: 99%

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Electrochemical removal of Reactive Black 5 azo dye using non-commercial boron-doped diamond film anodes

Vasconcelos

Ribeiro

Migliorini

et al. 2015

Electrochimica Acta

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Section: Extensive Electrolysissupporting

confidence: 95%

Section: [Figure 1 Near Here]mentioning

confidence: 99%

Electrochemical removal of Reactive Black 5 azo dye using non-commercial boron-doped diamond film anodes

Vasconcelos

Ribeiro

Migliorini

et al. 2015

Electrochimica Acta

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“…H 2 O 2 (2) Carbonaceous cathodes are the most efficient electrodes for the two-electron reduction of O 2 to H 2 O 2 from reaction (2). Examples of such cathodes include graphite [16], carbon sponge [17], graphite felt [18,19], carbon felt [5,[20][21][22], activated carbon fiber [23,24], carbon-polytetrafluoroethylene (PTFE) gas diffusion [25][26][27], carbon nanotubes [28] and BDD [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Comparative use of anodic oxidation, electro-Fenton and photoelectro-Fenton with Pt or boron-doped diamond anode to decolorize and mineralize Malachite Green oxalate dye

El-Ghenymy

Centellas

Rodrı́guez

et al. 2015

Electrochimica Acta

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“…Spectrophotometry measurements of RB5 dye in the range of 300 to 700 nm had shown that the highest absorbance was obtained at 596 nm which was attributed to the diazo groups and responsible for the blue colour of the dye solution [53]. The calibration curve was constructed and a linear range was found from 1.0 x 10 -6 to 1.5 x 10 -4 molL -1 with the regression equation of y = 0.0225 x + 0.0287 (R 2 = 0.9991), as shown in Figure 9.…”

Section: Comparison Of the Results By The Developed Dpcsv Technique Amentioning

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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Development of an electrochemical cell for the removal of Reactive Black 5

Cited by 63 publications

References 24 publications

Electrochemical removal of Reactive Black 5 azo dye using non-commercial boron-doped diamond film anodes

Electrochemical removal of Reactive Black 5 azo dye using non-commercial boron-doped diamond film anodes

Comparative use of anodic oxidation, electro-Fenton and photoelectro-Fenton with Pt or boron-doped diamond anode to decolorize and mineralize Malachite Green oxalate dye

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

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