Electrodos impregnados para desionización capacitiva, proceso para su preparación y aparato para emplear dichos electrodos.

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.