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Abstract
This study investigates the use of Ti3C2Tx MXene as flow electrodes in a flow electrode capacitive deionization (FE-CDI) system for ammonia removal and recovery from simulated agricultural wastewater. The system demonstrated 60% ion removal efficiency with an adsorption capacity of 460 mg g⁻¹ at a constant voltage of ±1.20 V. Characterizations using SEM, TEM, XRD, DLS, and Raman spectroscopy revealed favorable properties of MXenes, including high conductivity, hydrophilicity, and stability. The FE-CDI system exhibited energy efficiency with a charge efficiency of 58–70% and energy consumption of 0.45 kWh kg⁻¹, showcasing its potential for energy-efficient ammonia removal and recovery.
Publisher
npj Clean Water
Published On
Jul 05, 2022
Authors
Naqsh E. Mansoor, Luis A. Diaz, Christopher E. Shuck, Yury Gogotsi, Tedd E. Lister, David Estrada
Tags
Ti3C2Tx MXene
flow electrode capacitive deionization
ammonia removal
agricultural wastewater
energy efficiency
adsorption capacity
characterization

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