Highly porous N-doped graphene nanosheets for rapid removal of heavy metals from water by capacitive deionization

Lianjun Liu; Xiaoru Guo; Rebecca Tallon; Xingkang Huang; Junhong Chen

doi:10.1039/c6cc08515f

Highly porous N-doped graphene nanosheets for rapid removal of heavy metals from water by capacitive deionization

Chem Commun (Camb). 2017 Jan 16;53(5):881-884. doi: 10.1039/c6cc08515f. Epub 2016 Dec 22.

Authors

Lianjun Liu¹, Xiaoru Guo, Rebecca Tallon, Xingkang Huang, Junhong Chen

Affiliation

¹ University of Wisconsin-Milwaukee, Mechanical Engineering Department, Milwaukee, WI 53211, USA. jhchen@uwm.edu.

PMID: 28004042
DOI: 10.1039/c6cc08515f

Abstract

This work reports on a highly porous N-doped graphene-based capacitive deionization device, which exhibits a high removal efficiency (90-100%), fast removal (<30 min), and good regeneration performance (10 cycles, 99% retention) for multiple heavy metals (Pb²⁺, Cd²⁺, Cu²⁺, Fe²⁺, etc.) in water with a wide range of concentrations (0.05-200 ppm).