Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 28, Issue 2, Pages 251-257Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2018.02.010
Keywords
Carbon nanotube; Water treatment; Desalination; Capacitive deionization; Electrode fabrication; Electrophoretic deposition
Funding
- National Science Foundation of China [21576190]
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In order to obtain superior electrode performances in capacitive deionization (CDI), the electrophoretic deposition (EPD) was introduced as a novel strategy for the fabrication of carbon nanotube (CNT) electrode. Preparation parameters, including the concentration of slurry components, deposition time and electric field intensity, were mainly investigated and optimized in terms of electrochemical characteristic and desalination performance of the deposited CNT electrode. The SEM image shows that the CNT material was deposited homogeneously on the current collector and a non-crack surface of the electrode was obtained. An optimal preparation condition of the deposited CNT electrode was obtained and specified as the Al (NO3)(3) M concentration of 1.3x10(-2) mol/L, the deposition time of 30 min and the electric field intensity of 15 V/cm. The obtained electrode performs an increasing specific mass capacitance of 33.36 F/g and specific adsorption capacity of 23.93 mg/g, which are 1.62 and 1.85 times those of the coated electrode respectively. The good performance of the deposited CNT electrode indicates the promising application of the EPD methodology in subsequent research and fabrication of the CDI electrodes for CDI process.
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