| Autor: |
Volfkovich, Yu. M., Mikhalin, A. A., Rychagov, A. Yu., Kardash, M. M. |
| Předmět: |
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| Zdroj: |
Protection of Metals & Physical Chemistry of Surfaces; Jan2021, Vol. 57 Issue 1, p68-79, 12p |
| Abstrakt: |
The capacitive deionization of water (CDW) was investigated with the purpose to obtain pure water. To this end, mosaic cation–anion-exchange membranes and activated carbon electrodes were used. The mosaic membranes contained cation- and anion-exchange components embedded in a synthetic-fiber-based matrix. The means of preparation for the pressed mosaic membranes included pressing the cation- and anion-exchange membranes into each other. Another method was via the subsequent formation of cation- and anion-exchange bands in the fibrous matrix (in a banded membrane). The activated carbon electrodes and mosaic membranes possessed sufficient specific ion surface conductivities even in clean water. The specific energy consumption was 31.9 and 111.7 W mol–1 for the CDW devices containing banded and pressed membranes, respectively. Therefore, the banded membrane was preferable for obtaining pure drinking water. It was found that the CDW with the banded mosaic membrane exhibited the best performance at a voltage of 2 V and a solution flow rate of 15 cm3/min. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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