Title :
Chloroform Dechlorination in Aqueous Solution on Palladium-Nickel/Polymeric Pyrrole Film Modified Titanium Electrode
Author :
Sun, Zhirong ; Gao, Ming ; Ge, Hui ; Peng, Yongzhen
Author_Institution :
Key Lab. of Beijing for Water Quality Sci. & Water Environ. Recovery Eng., Beijing Univ. of Technol., Beijing, China
Abstract :
Electrocatalytic activity of palladium-nickel/polymeric pyrrole film modified titanium (Pd-Ni/PPy/Ti) electrode for the electrochemically reductive dechlorination of chloroform was carried out in aqueous solution. The prepared Pd-Ni/PPy/Ti electrode was characterized by scanning electron microscopy (SEM), cyclic voltammetry (CV) and atomic emission spectrometry (AES). Pd-Ni microparticles were uniformly dispersed on a polypyrrole (PPy) film which was previously electrodeposited on the titanium (Ti) netting supporting electrode. Electrocatalytic reduction of chloroform was performed in a two-compartment cell separated by cation- exchange membrane. It is found that the removal efficiency of chloroform and current efficiency on Pd-Ni/PPy/Ti electrode could be up to 52.10% and 46.74% at dechlorination current of 0.1 mA and dechlorination time of 180 min.
Keywords :
atomic emission spectroscopy; catalysis; electrochemical electrodes; electrodeposition; membranes; nickel; organic compounds; palladium; polymer films; reduction (chemical); scanning electron microscopy; titanium; voltammetry (chemical analysis); AES; CV; Ni; Pd; SEM; Ti; atomic emission spectrometry; cation exchange membrane; chloroform aqueous solution; chloroform dechlorination; chloroform electrocatalytic reduction; current 0.1 mA; cyclic voltammetry; electrocatalytic activity; electrochemically reductive dechlorination; electrodeposition; palladium-nickel-pyrrole modified titanium electrode; polymeric pyrrole film; scanning electron microscopy; time 180 min; Adaptive equalizers; Dynamic range; Electrodes; Histograms; Image coding; Polymer films; Radiographic image enhancement; Radiography; Titanium; X-ray imaging;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5162502
