Title :
Electrosorption of cupric ions from solutions by carbon nanotubes and nanofibres film electrodes grown on graphite substrates
Author :
Gao, Y. ; Li, H.B. ; Cheng, Z.J. ; Zhang, M.C. ; Zhang, Y.P. ; Zhang, Z.J. ; Chen, Y.W. ; Pan, L.K. ; Sun, Z.
Author_Institution :
Dept. of Phys., East China Normal Univ., Shanghai
Abstract :
Electrosorption of ions from aqueous solutions with carbon nanotubes and nanofibres (CNTs-CNFs) film electrodes has been demonstrated. The cost-effective, large area CNTs-CNFs film was synthesised on graphite substrate by low pressure and low temperature thermal chemical vapor deposition (CVD). Successful removal of Cu2+ from water by electrosorption of CNTs-CNFs films was achieved. The electrosorption capacity of CNTs-CNFs film electrodes was approximately 30.6~136.2 mumol/g. The ion sorption followed a Langmuir isotherm, indicating monolayer adsorption. The degradation of CNTs-CNFs electrodes for the electrosorption of Cu2+ maybe due to the electrolytic reaction occurred on the surface of the electrodes.
Keywords :
Langmuir-Blodgett films; adsorption; carbon nanotubes; chemical vapour deposition; copper; graphite; thin films; CNTs-CNFs films; Cu; Langmuir isotherm; aqueous solutions; carbon nanofibres; carbon nanotubes; cupric ions; electrolytic reaction; electrosorption; film electrodes; graphite substrates; ion sorption; low pressure chemical vapor deposition; low temperature thermal chemical vapor deposition; monolayer adsorption; Carbon nanotubes; Electrodes; Nanoelectronics; Substrates; capacitive deionization; carbon nanofubes and nanofibres; cupric chloride; electrosorption; langmuir isotherm;
Conference_Titel :
Nanoelectronics Conference, 2008. INEC 2008. 2nd IEEE International
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1572-4
Electronic_ISBN :
978-1-4244-1573-1
DOI :
10.1109/INEC.2008.4585478
