IMPREGNATED ELECTRODE FOR CAPACITIVE DEIONISATION, PROCESS FOR PREPARING IT AND APPARATUS EMPLOYING THE ELECTRODES

摘要

Disclosed is an electrode an electrode for capacitive deionization comprising • (i) an adsorbent having specific surface area of 100 m 2/g to 1300 m 2/g; • (ii) conductive carbon black; and • (iii) a binder; wherein said adsorbent is impregnated with a substance having conductivity in the range of 105 S/m to 107 S/m and standard hydrogen potential in the range of −0.3 V to −1.3 V. The electrode provides enhanced recovery and greater reduction in total solids and is more energy efficient. The process or preparing the electrode and a gravity fed water purification apparatus incorporating said electrode are also disclosed.

主权项

1. An electrode for capacitive deionization comprising:
(i) an adsorbent having specific surface area of 100 m2/g to 1300 m2/g; (ii) conductive carbon black; and (iii) a binder;
wherein said adsorbent is impregnated with a substance having conductivity in the range of 105 S/m to 107 S/m and standard hydrogen potential in the range of −0.3 V to +1.3 V.