Tags

Type your tag names separated by a space and hit enter

A high activity of Ti/SnO2-Sb electrode in the electrochemical degradation of 2,4-dichlorophenol in aqueous solution.
J Environ Sci (China). 2013 Jul 01; 25(7):1424-30.JE

Abstract

Electrochemical degradation of 2,4-dichlorophenol (2,4-DCP) in aqueous solution was investigated over Ti/SnO2-Sb anode. The factors influencing the degradation rate, such as applied current density (2-40 mA/cm2), pH (3-11) and initial concentration (5-200 mg/L) were evaluated. The degradation of 2,4-DCP followed apparent pseudo first-order kinetics. The degradation ratio on Ti/SnO2-Sb anode attained > 99.9% after 20 min of electrolysis at initial 5-200 mg/L concentrations at a constant current density of 30 mA/cm2 with a 10 mmol/L sodium sulphate (Na2SO4) supporting electrolyte solution. The results showed that 2,4-DCP (100 mg/L) degradation and total organic carbon (TOC) removal ratio achieved 99.9% and 92.8%, respectively, at the optimal conditions after 30 min electrolysis. Under this condition, the degradation rate constant (k) and the degradation half-life (t1/2) were 0.21 min- and (2.8 +/- 0.2) min, respectively. Mainly carboxylic acids (propanoic acid, maleic acid, propanedioic acid, acetic acid and oxalic acid) were detected as intermediates. The energy efficiencies for 2,4-DCP degradation (5-200 mg/L) with Ti/SnO2-Sb anode ranged from 0.672 to 1.602 g/kWh. The Ti/SnO2-Sb anode with a high activity to rapid organic oxidation could be employed to degrade chlorophenols, particularly 2,4-DCP in wastewater.

Authors+Show Affiliations

State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China. junfengn@bnu.edu.cnNo affiliation info availableNo 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

24218856

Citation

Niu, Junfeng, et al. "A High Activity of Ti/SnO2-Sb Electrode in the Electrochemical Degradation of 2,4-dichlorophenol in Aqueous Solution." Journal of Environmental Sciences (China), vol. 25, no. 7, 2013, pp. 1424-30.
Niu J, Maharana D, Xu J, et al. A high activity of Ti/SnO2-Sb electrode in the electrochemical degradation of 2,4-dichlorophenol in aqueous solution. J Environ Sci (China). 2013;25(7):1424-30.
Niu, J., Maharana, D., Xu, J., Chai, Z., & Bao, Y. (2013). A high activity of Ti/SnO2-Sb electrode in the electrochemical degradation of 2,4-dichlorophenol in aqueous solution. Journal of Environmental Sciences (China), 25(7), 1424-30.
Niu J, et al. A High Activity of Ti/SnO2-Sb Electrode in the Electrochemical Degradation of 2,4-dichlorophenol in Aqueous Solution. J Environ Sci (China). 2013 Jul 1;25(7):1424-30. PubMed PMID: 24218856.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A high activity of Ti/SnO2-Sb electrode in the electrochemical degradation of 2,4-dichlorophenol in aqueous solution. AU - Niu,Junfeng, AU - Maharana,Dusmant, AU - Xu,Jiale, AU - Chai,Zhen, AU - Bao,Yueping, PY - 2013/11/14/entrez PY - 2013/11/14/pubmed PY - 2014/2/8/medline SP - 1424 EP - 30 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 25 IS - 7 N2 - Electrochemical degradation of 2,4-dichlorophenol (2,4-DCP) in aqueous solution was investigated over Ti/SnO2-Sb anode. The factors influencing the degradation rate, such as applied current density (2-40 mA/cm2), pH (3-11) and initial concentration (5-200 mg/L) were evaluated. The degradation of 2,4-DCP followed apparent pseudo first-order kinetics. The degradation ratio on Ti/SnO2-Sb anode attained > 99.9% after 20 min of electrolysis at initial 5-200 mg/L concentrations at a constant current density of 30 mA/cm2 with a 10 mmol/L sodium sulphate (Na2SO4) supporting electrolyte solution. The results showed that 2,4-DCP (100 mg/L) degradation and total organic carbon (TOC) removal ratio achieved 99.9% and 92.8%, respectively, at the optimal conditions after 30 min electrolysis. Under this condition, the degradation rate constant (k) and the degradation half-life (t1/2) were 0.21 min- and (2.8 +/- 0.2) min, respectively. Mainly carboxylic acids (propanoic acid, maleic acid, propanedioic acid, acetic acid and oxalic acid) were detected as intermediates. The energy efficiencies for 2,4-DCP degradation (5-200 mg/L) with Ti/SnO2-Sb anode ranged from 0.672 to 1.602 g/kWh. The Ti/SnO2-Sb anode with a high activity to rapid organic oxidation could be employed to degrade chlorophenols, particularly 2,4-DCP in wastewater. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/24218856/A_high_activity_of_Ti/SnO2_Sb_electrode_in_the_electrochemical_degradation_of_24_dichlorophenol_in_aqueous_solution_ DB - PRIME DP - Unbound Medicine ER -