Abstract
The aim of this study was to investigate the efficiency of the carbon black (CB)-polytetrafluoroethylene (PTFE)-, carbon nanotube (CNT)-PTFE-, and CB-CNT-PTFE-coated gas-diffusion cathode (GDC) for the electrochemical generation of H2O2 and its capability for degradation of organic pollutants. Results showed that the CB-CNT-PTFE-coated GDC was the most efficient cathode for the generation of H2O2, but the CB-PTFE-coated GDC can be chosen as an economical coating composite. The amount of H2O2 generated on the uncoated, PAC-PTFE-coated, CNT-PTFE-coated, CB-PTFE-coated, and CB-CNT-PTFE-coated GDC was 21.68, 58.45, 100.9, 112.3, and 123.5 μM, respectively, within a reaction time of 40 min. The effects of pH, current intensity, and electrolyte concentration on the generation of H2O2 were investigated. The electrochemical generation of H2O2 increased with increasing current intensity and electrolyte concentration. According to the results and from the economical point of view, the optimal pH, current intensity, and electrolyte concentration were 7.0, 150 mA, and 0.08 M, respectively. The obtained data showed that the electrochemical process equipped with CB-PTFE-coated GDC would be efficient for treating wastewater containing Acid Red 18 as a model organic pollutant. A decolorization efficiency of 95.35 % was achieved for an initial dye concentration of 10 mg/L at a reaction time of 70 min.
Similar content being viewed by others
References
A.R. Khataee, M. Safarpour, M. Zarei, S. Aber, J. Electroanal. Chem. 659, 63 (2011)
M. Panizza, G. Cerisola, Electrochim. Acta 54, 876 (2008)
C. Badellino, C.A. Rodrigues, R. Bertazzoli, J. Hazard. Mater. 137, 856 (2006)
J.C. Forti, R.S. Rocha, M.R.V. Lanza, R. Bertazzoli, J. Electroanal. Chem. 601, 63 (2007)
S. Irmak, H.I. Yavuz, O. Erbatur, Appl. Catal. B Environ. 63, 243 (2006)
G. Zhang, S. Wang, S. Zhao, L. Fu, G. Chen, F. Yang, Appl. Catal. B Environ. 106, 370 (2011)
F. Zhang, M. Li, W. Li, C. Feng, Y. Jin, X. Guo, J. Cui, Chem. Eng. J. 175, 349 (2011)
A. Riga, K. Soutsas, K. Ntampegliotis, V. Karayannis, G. Papapolymerou, Desalination 211, 72 (2007)
M. Giomo, A. Buso, P. Fier, G. Sandonà, B. Boye, G. Farnia, Electrochim. Acta 54, 808 (2008)
C. Antonio Pineda Arellano, S.S. Martínez, Int. J. Hydrogen Energy 32, 3163 (2007)
A.R. Khataee, M. Zarei, L. Moradkhannejhad, Desalination 258, 112 (2010)
H. Wang, J. Wang, Appl. Catal. B Environ. 89, 111 (2009)
M. Zarei, D. Salari, A. Niaei, A. Khataee, Electrochim. Acta 54, 6651 (2009)
W. Xu, P. Li, B. Dong, J. Environ. Sci. 22, 204 (2010)
M.S. Saha, A. Denggerile, Y. Nishiki, T. Furuta, T. Ohsaka, Electrochem. Commun. 5, 445 (2003)
M. Zarei, A. Niaei, D. Salari, A. Khataee, J. Hazard. Mater. 173, 544 (2010)
A.R. Khataee, M. Zarei, Desalination 278, 117 (2011)
K. Hanna, S. Chiron, M.A. Oturan, Water Res. 39, 2763 (2005)
M. Zhou, Q. Yu, L. Lei, Dyes Pigments 77, 129 (2008)
A.R. Khataee, M. Zarei, S.K. Asl, J. Electroanal. Chem. 648, 143 (2010)
G. Wang, G. Sun, Q. Wang, S. Wang, H. Sun, Q. Xin, Int. J. Hydrogen Energy 35, 11245 (2010)
M. Carmo, M. Linardi, J.G. Rocha Poco, Int. J. Hydrogen Energy 33, 6289 (2008)
O. Nishikawa, K. Doyama, K. Miyatake, H. Uchida, M. Watanabe, Electrochim. Acta 50, 2719 (2005)
E. Higuchi, K. Okamoto, K. Miyatake, H. Uchida, M. Watanabe, Res. Chem. Intermed. 32, 533 (2006)
C.-H. Liu, T.-H. Ko, Y.-K. Liao, J. Power Sources 178, 80 (2008)
A. Özcan, Y. Şahin, A. Savaş Koparal, M.A. Oturan, J. Electroanal. Chem. 616, 71 (2008)
F. Xu, T. Song, Y. Xu, Y. Chen, S. Zhu, S. Shen, J. Rare Earths 27, 128 (2009)
Acknowledgment
The authors wish to thank Tarbiat Modares University for their financial and instrumental supports.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Soltani, R.D.C., Rezaee, A., Khataee, A.R. et al. Electrochemical generation of hydrogen peroxide using carbon black-, carbon nanotube-, and carbon black/carbon nanotube-coated gas-diffusion cathodes: effect of operational parameters and decolorization study. Res Chem Intermed 39, 4277–4286 (2013). https://doi.org/10.1007/s11164-012-0944-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11164-012-0944-8