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27 results on '"Lu, Jilai"'

25. Preparation of Sb2O3-loaded Activated Carbon Particle Electrode and Its Electrocatalytic Degradation of Methyl Orange in a Three-dimensional Electrode Cell.

Author

Cao, Guiping, Su, Jian, Lu, Jilai, Zhang, Jintao, and Liu, Qingjian

Subjects
ANTIMONY, OXIDES, ACTIVATED carbon, CARBON electrodes, ELECTROCATALYSIS, METHYL groups, EXPERIMENTS, HYDROLYSIS
Abstract

Electrocatalysis on the degradation of methyl orange is investigated using Sb2O3-loaded activated carbon (Sb2O3/AC), a new particle electrode. The electrode was prepared by an impregnation method. An orthogonal array with four factors and three levels was selected to carry out the experiment. Electrocatalysis on the degradation of methyl orange through Sb2O3/AC was characterized by a series of parameters, including the amount of the particle electrode, the concentration of Na2SO4, the cell voltage, and the electrolysis time, and the results were compared with those of a conventional AC particle electrode. The results indicate that calcination temperature has the greatest impact on the catalytic activity of the particle electrode. The optimal conditions for preparing the Sb2O3/AC electrode include an 8 mL SbCl3 solution, 90 min hydrolysis time, 400 °C calcination temperature, and 180 min calcination time. As well, the degradation efficiency of the Sb2O3/AC electrode is consistently higher than that of the AC electrode under the same electrolysis conditions. The electrochemical oxidation of methyl orange of both electrodes conformed to pseudo first-order kinetics, but the rate constant of the Sb2O3/AC electrode was 2.29 times that of the AC electrode; this is likely due to the high electrocatalytic activity of the experimental electrode. The electrocatalysis results exhibited the synergetic effects of AC and Sb2O3 in the new particle electrode. [ABSTRACT FROM AUTHOR]

Published
2012
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27. Electrosorption enhanced electrooxidation of a model organic pollutant at 3D SnO 2 -Sb electrode in superimposed pulse current mode.

Author

Chen Y, Tu Y, Bai Y, Li J, and Lu J

Subjects
Oxidation-Reduction, Titanium, Water Pollutants, Chemical chemistry, Antimony, Electrochemical Techniques methods, Electrodes, Tin Compounds, Water Pollutants, Chemical isolation & purification
Abstract

In this work, the novel pulse "electrosorption-electrooxidation-electrosorption" (PESO) mode is developed in the superimposed pulse current system for benzoic acid oxidation. Due to the synergistic effect of electrosorption and electrooxidation at TiO 2 -NTs/3D-SnO 2 -Sb electrode in PESO mode, the enhancement of removal efficiency, improvement in mass transport and decrease of energy consumption were significantly obvious. The mechanism for the great enhancement of the mode is analyzed in details. The strengthened interaction between electrode and organics, increased instantaneous currents and lower intermediate accumulation contributed to the significant enhancement of electrochemical performance of the superimposed pulse system. The pulse PESO mode was an efficient and promising method for treating organic pollutants., (Copyright © 2017 Elsevier Ltd. All rights reserved.)

Published
2018
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