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Electrochemical degradation of pyridine by Ti/SnO2-Sb tubular porous electrode.
Chemosphere. 2016 Apr; 149:49-56.C

Abstract

Diffusion in electrochemistry is a critical issue for water purification. Electrocatalytic reactor system in improving water quality is a useful way to induce convection to enhance diffusion. This study focuses on the preparation and the characterization of Ti/SnO2-Sb tubular porous electrode for degrading pyridine wastewater. The electrode as an anode in reactor system is prepared by coating SnO2-Sb as an electro-catalyst via Pechini method on the tubular porous Ti. Scanning Electron Microscopy, Energy Dispersive Spectrum, X-ray Diffraction and Pore Distribution are employed to evaluate the structure and morphology of the electrodes coatings, and Linear Sweep Voltammetry and Cyclic Voltammetry are used to illustrate the electrochemical properties of the electrodes coatings. Furthermore, the electrochemical oxidation performance of Ti/SnO2-Sb tubular porous electrode is characterized by degrading pyridine wastewater. The effects of flow and static pattern, initial pyridine concentration, supporting electrolyte concentration, current density and pH on the performance of the reactor were investigated in the electrocatalytic reactor system. The results indicated that the removal ratio of pyridine reaches maximum which is 98% under the optimal operation conditions, that are 100 mg L(-1) initial pyridine concentration, 10 g L(-1) supporting electrolyte concentration, 30 mA cm(-2) current density and pH 3. Transition state calculation based on the density function theory was combined with High Performance Liquid Chromatography, Gas Chromatography and Ionic Chromatography results to describe the pathway of pyridine degradation.

Authors+Show Affiliations

Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China. Electronic address: hwqnjust@aliyun.com.

Pub Type(s)

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

Language

eng

PubMed ID

26849194

Citation

Li, Duo, et al. "Electrochemical Degradation of Pyridine By Ti/SnO2-Sb Tubular Porous Electrode." Chemosphere, vol. 149, 2016, pp. 49-56.
Li D, Tang J, Zhou X, et al. Electrochemical degradation of pyridine by Ti/SnO2-Sb tubular porous electrode. Chemosphere. 2016;149:49-56.
Li, D., Tang, J., Zhou, X., Li, J., Sun, X., Shen, J., Wang, L., & Han, W. (2016). Electrochemical degradation of pyridine by Ti/SnO2-Sb tubular porous electrode. Chemosphere, 149, 49-56. https://doi.org/10.1016/j.chemosphere.2016.01.078
Li D, et al. Electrochemical Degradation of Pyridine By Ti/SnO2-Sb Tubular Porous Electrode. Chemosphere. 2016;149:49-56. PubMed PMID: 26849194.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical degradation of pyridine by Ti/SnO2-Sb tubular porous electrode. AU - Li,Duo, AU - Tang,Jingyan, AU - Zhou,Xiezhen, AU - Li,Jiansheng, AU - Sun,Xiuyun, AU - Shen,Jinyou, AU - Wang,Lianjun, AU - Han,Weiqing, Y1 - 2016/02/02/ PY - 2015/10/04/received PY - 2016/01/18/revised PY - 2016/01/19/accepted PY - 2016/2/6/entrez PY - 2016/2/6/pubmed PY - 2016/10/25/medline KW - Electrocatalytic reactor system KW - Pyridine KW - The induced convection KW - Ti/SnO(2)–Sb tubular porous electrode KW - Transition state calculation SP - 49 EP - 56 JF - Chemosphere JO - Chemosphere VL - 149 N2 - Diffusion in electrochemistry is a critical issue for water purification. Electrocatalytic reactor system in improving water quality is a useful way to induce convection to enhance diffusion. This study focuses on the preparation and the characterization of Ti/SnO2-Sb tubular porous electrode for degrading pyridine wastewater. The electrode as an anode in reactor system is prepared by coating SnO2-Sb as an electro-catalyst via Pechini method on the tubular porous Ti. Scanning Electron Microscopy, Energy Dispersive Spectrum, X-ray Diffraction and Pore Distribution are employed to evaluate the structure and morphology of the electrodes coatings, and Linear Sweep Voltammetry and Cyclic Voltammetry are used to illustrate the electrochemical properties of the electrodes coatings. Furthermore, the electrochemical oxidation performance of Ti/SnO2-Sb tubular porous electrode is characterized by degrading pyridine wastewater. The effects of flow and static pattern, initial pyridine concentration, supporting electrolyte concentration, current density and pH on the performance of the reactor were investigated in the electrocatalytic reactor system. The results indicated that the removal ratio of pyridine reaches maximum which is 98% under the optimal operation conditions, that are 100 mg L(-1) initial pyridine concentration, 10 g L(-1) supporting electrolyte concentration, 30 mA cm(-2) current density and pH 3. Transition state calculation based on the density function theory was combined with High Performance Liquid Chromatography, Gas Chromatography and Ionic Chromatography results to describe the pathway of pyridine degradation. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/26849194/Electrochemical_degradation_of_pyridine_by_Ti/SnO2_Sb_tubular_porous_electrode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(16)30083-2 DB - PRIME DP - Unbound Medicine ER -