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Performance of three different anodes in electrochemical degradation of 4-para-nitrophenol.
Environ Technol. 2015; 36(20):2618-27.ET

Abstract

In recent years, removal of pollutants from wastewater by electrochemical oxidation has become an attractive method. The present investigation deals with the degradation of 4-para-nitrophenol (4-PNP) by electrochemical oxidation using three different anodes, namely TiO2-RuO2-IrO2/Ti (titanium substrate insoluble anode - TSIA)), IrO2-PbO2/Ti and graphite. Electrochemical oxidation of 4-PNP was carried out employing sodium chloride as the supporting electrolyte, at pH 7 with a current density of 15 mA/cm(2). The degradation of 4-PNP by electro-oxidation was characterized by ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy and high-performance liquid chromatography. The performance efficiency and current efficiency of the three anodic materials in this study were evaluated by chemical oxygen demand (COD). Comparisons of energy consumption for the three anodes employed were also calculated. Among electrodes investigated, the IrO2-PbO2/Ti electrode resulted in 98% of COD removal in 30 min comparatively at a less energy consumption of 1 × 10(-2) kWh m(-3), depicting its higher performance efficiency in 4-PNP degradation.

Authors+Show Affiliations

a Department of Chemical Engineering , National Institute of Technology , Tiruchirappalli , Tamil Nadu , India.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25885262

Citation

Murugaesan, Pramila, et al. "Performance of Three Different Anodes in Electrochemical Degradation of 4-para-nitrophenol." Environmental Technology, vol. 36, no. 20, 2015, pp. 2618-27.
Murugaesan P, Aravind P, Muniyandi NG, et al. Performance of three different anodes in electrochemical degradation of 4-para-nitrophenol. Environ Technol. 2015;36(20):2618-27.
Murugaesan, P., Aravind, P., Muniyandi, N. G., & Kandasamy, S. (2015). Performance of three different anodes in electrochemical degradation of 4-para-nitrophenol. Environmental Technology, 36(20), 2618-27. https://doi.org/10.1080/09593330.2015.1041424
Murugaesan P, et al. Performance of Three Different Anodes in Electrochemical Degradation of 4-para-nitrophenol. Environ Technol. 2015;36(20):2618-27. PubMed PMID: 25885262.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Performance of three different anodes in electrochemical degradation of 4-para-nitrophenol. AU - Murugaesan,Pramila, AU - Aravind,Priyadharshini, AU - Muniyandi,Neelavannan Guruswamy, AU - Kandasamy,Subramanian, Y1 - 2015/05/13/ PY - 2015/4/18/entrez PY - 2015/4/18/pubmed PY - 2016/8/3/medline KW - 4-para-nitrophenol KW - IrO2–PbO2/Ti KW - TSIA KW - electrochemical oxidation KW - graphite SP - 2618 EP - 27 JF - Environmental technology JO - Environ Technol VL - 36 IS - 20 N2 - In recent years, removal of pollutants from wastewater by electrochemical oxidation has become an attractive method. The present investigation deals with the degradation of 4-para-nitrophenol (4-PNP) by electrochemical oxidation using three different anodes, namely TiO2-RuO2-IrO2/Ti (titanium substrate insoluble anode - TSIA)), IrO2-PbO2/Ti and graphite. Electrochemical oxidation of 4-PNP was carried out employing sodium chloride as the supporting electrolyte, at pH 7 with a current density of 15 mA/cm(2). The degradation of 4-PNP by electro-oxidation was characterized by ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy and high-performance liquid chromatography. The performance efficiency and current efficiency of the three anodic materials in this study were evaluated by chemical oxygen demand (COD). Comparisons of energy consumption for the three anodes employed were also calculated. Among electrodes investigated, the IrO2-PbO2/Ti electrode resulted in 98% of COD removal in 30 min comparatively at a less energy consumption of 1 × 10(-2) kWh m(-3), depicting its higher performance efficiency in 4-PNP degradation. SN - 1479-487X UR - https://www.unboundmedicine.com/medline/citation/25885262/Performance_of_three_different_anodes_in_electrochemical_degradation_of_4_para_nitrophenol_ L2 - https://www.tandfonline.com/doi/full/10.1080/09593330.2015.1041424 DB - PRIME DP - Unbound Medicine ER -