P-Benzoquinone anodic degradation by carbon black diamond composite electrodes

Ajeel, M.A. and Aroua, M.K. and Daud, Wan Mohd Ashri Wan (2015) P-Benzoquinone anodic degradation by carbon black diamond composite electrodes. Electrochimica Acta, 169. pp. 46-51. ISSN 0013-4686, DOI https://doi.org/10.1016/j.electacta.2015.04.037.

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In this work, p-benzoquinone (p-BQ) electro-degradation in three carbon black diamond (CBD) composite electrodes is studied under conditions of 200 mg/L initial concentration, 45 mA/cm(2) applied current density, pH 3, and 0.25 M Na2SO4 as a supporting electrolyte. The performance of the CBD electrodes was compared with that of a platinum electrode. Results showed that the optimal p-BQ degradation, COD removal efficiency, and current efficiency may be obtained from the CBD electrode containing 20 carbon black (20CBD). After 20 min of electro-degradation, p-BQ removal on 20CBD reached 96 at pH 6 and 61.5 at pH 3. However, after 180 min of p-BQ degradation, COD removal on this electrode reached 45 at pH 6 and 70 at pH 3. Increases in applied current during p-BQ electro-oxidation were related to the initial p-BQ concentration. Significant differences were observed in the solution containing 200 mg/L p-BQ as the current density was increased from 20 mA/cm(2) to 45 mA/cm(2); no such effects were observed in the solution with 1000 mg/L p-BQ. (C) 2015 Elsevier Ltd. All rights reserved.

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Additional Information: ISI Document Delivery No.: CI8GC Times Cited: 0 Cited Reference Count: 29 Cited References: Ajeel MA, 2015, ELECTROCHIM ACTA, V153, P379, DOI 10.1016/j.electacta.2014.11.163 Can OT, 2010, J HAZARD MATER, V173, P731, DOI 10.1016/j.jhazmat.2009.08.146 Canizares P, 2004, J APPL ELECTROCHEM, V34, P87, DOI 10.1023/B:JACH.0000005587.52946.66 Cartaxo MAM, 2012, CHEMOSPHERE, V86, P341, DOI 10.1016/j.chemosphere.2011.09.040 Choi JY, 2010, J HAZARD MATER, V179, P762, DOI 10.1016/j.jhazmat.2010.03.067 Chu YY, 2010, J HAZARD MATER, V180, P247, DOI 10.1016/j.jhazmat.2010.04.021 Comninellis C, 2010, ELECTROCHEMISTRY FOR THE ENVIRONMENT, P1, DOI 10.1007/978-0-387-68318-8 Cui YH, 2009, WATER RES, V43, P1968, DOI 10.1016/j.watres.2009.01.026 Czupryniak J, 2012, CENT EUR J PHYS, V10, P1183, DOI 10.2478/s11534-012-0058-3 Duan XY, 2013, ELECTROCHIM ACTA, V94, P192, DOI 10.1016/j.electacta.2013.01.151 Elaoud SC, 2011, DESALINATION, V272, P148, DOI 10.1016/j.desal.2011.01.011 El-Ghenymy Abdellatif, 2012, Chemosphere, V87, P1126, DOI 10.1016/j.chemosphere.2012.02.006 El-Ghenymy A, 2013, J ELECTROANAL CHEM, V689, P149, DOI 10.1016/j.jelechem.2012.11.013 Feng YJ, 2003, WATER RES, V37, P2399, DOI 10.1016/S0043-1354(03)00026-5 Houk LL, 1998, J APPL ELECTROCHEM, V28, P1167, DOI 10.1023/A:1003439727317 Iniesta J, 2001, ELECTROCHIM ACTA, V46, P3573, DOI 10.1016/S0013-4686(01)00630-2 Kapalka A, 2007, ELECTROCHIM ACTA, V53, P1954, DOI 10.1016/j.electacta.2007.08.066 KIRK DW, 1985, J APPL ELECTROCHEM, V15, P285, DOI 10.1007/BF00620944 Li N, 2007, CHEM PHYS LETT, V447, P241, DOI 10.1016/j.cplett.2007.09.025 Liu L, 2009, J HAZARD MATER, V168, P179, DOI 10.1016/j.jhazmat.2009.02.004 Oliveira RTS, 2007, CHEMOSPHERE, V66, P2152, DOI 10.1016/j.chemosphere.2006.09.024 Panizza M., 2014, ENVIRON SCI POLLUT R, P1 Panizza M, 2005, ELECTROCHIM ACTA, V51, P191, DOI 10.1016/j.electacta.2005.04.023 Panizza M., 2008, J ENV ENG MANAGE, V18, P139 Panizza M, 2009, CHEM REV, V109, P6541, DOI 10.1021/cr9001319 PULGARIN C, 1994, WATER RES, V28, P887, DOI 10.1016/0043-1354(94)90095-7 Wang Y, 2010, J HAZARD MATER, V178, P867, DOI 10.1016/j.jhazmat.2010.02.018 Wei JJ, 2011, INT J MIN MET MATER, V18, P589, DOI 10.1007/s12613-011-0482-1 Yoon JH, 2007, B KOR CHEM SOC, V28, P403 Ajeel, Mohammed A. Aroua, Mohamed Kheireddine Daud, Wan Mohd Ashri Wan Engineering, Faculty /I-7935-2015 Engineering, Faculty /0000-0002-4848-7052 0 PERGAMON-ELSEVIER SCIENCE LTD OXFORD ELECTROCHIM ACTA
Uncontrolled Keywords: Carbon black diamond composite electrodes, p-benzoquinone, electro-degradation, current efficiency, cod, boron-doped diamond, waste-water treatment, electrochemical oxidation, aqueous-solution, phenol, 1,4-benzoquinone, bdd,
Subjects: T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 04 Apr 2016 00:48
Last Modified: 18 Mar 2019 04:37
URI: http://eprints.um.edu.my/id/eprint/15741

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