Key Words:NANOFIBER AEROGELS; PERFORMANCE; ELECTRODES

Abstract:Capacitive deionization can alleviate water shortage and water environmental pollution, but performances are greatly determined by the electrochemical and desalination properties of its electrode materials. In this work, B and N co-doped porous carbon with micromesoporous structures is derived from sodium alginate by a carbonization, activation, and hydrothermal doping process, which exhibits large specific surface area (2587 m2 & BULL;g-1) and high specific capacitance (190.7 F & BULL;g-1) for adsorption of salt ions and heavy metal ions. Furthermore, the materials provide a desalination capacity of 26.9 mg & BULL;g-1 at 1.2 V in 500 mg & BULL;L-1 NaCl solution as well as a high removal capacity (239.6 mg & BULL;g-1) and adsorption rate (7.99 mg & BULL;g-1 & BULL;min-1) for Pb2 with an excellent cycle stability. This work can pave the way to design low-cost porous carbon with high-performances for removal of salt ions and heavy metal ions.

Volume:17

Issue:12

Translation or Not:no