Carbon electrode for desalination purpose in capacitive deionization
- Physics Department, Institut Teknologi Sepuluh Nopember (ITS) Kampus ITS, Sukolilo Surabaya 60111, Jawa Timur (Indonesia)
Carbon electrodes for desalination purpose have been successfully synthesized using activated carbon powder (BET surface area=700 – 1400 m{sup 2}/g), carbon black and polyvinyl alcohol (PVA) binder by cross-linking method with glutaric acid (GA) at 120 °C. The electrochemical properties of the carbon electrodes were analyzed using electrical impedance spectroscopy (EIS) and cyclic voltammetry (CV) whilst the physical properties were observed with scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX). In order to assess the desalting performance, salt removal experiments were performed by constructing a capacitive deionization unit cell with five pairs of carbon electrodes. For each pair consisted of two parallel carbon electrodes separated by a spacer. Desalination and regeneration processes were also observed in the salt-removal experiments. The salt-removal experiments were carried out in single-pass mode using a solution with 0.1 M NaCl at a flow rate of 10 mL/min. A voltage of 3 V was applied to the cell for 60 minutes for both processes in desalination and regeneration. The result showed that the percentage value of the salt-removal was achieved at 20%.
- OSTI ID:
- 22590877
- Journal Information:
- AIP Conference Proceedings, Vol. 1719, Issue 1; Conference: 4. international conference on theoretical and applied physics (ICTAP) 2014, Bali (Indonesia), 16-17 Oct 2014; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACTIVATED CARBON
CARBON BLACK
CROSS-LINKING
DESALINATION
ELECTRIC POTENTIAL
ELECTROCHEMISTRY
ELECTRODES
GLUTARIC ACID
IMPEDANCE
POWDERS
PVA
REGENERATION
SALTS
SCANNING ELECTRON MICROSCOPY
SODIUM CHLORIDES
SURFACE AREA
SURFACES
VOLTAMETRY
X-RAY SPECTROSCOPY