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March 21, 2026Langmuir

Ammonia Removal from Water by Capacitive Deionization Using N-Doped Carbon Derived from ZIF-8

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Authors

YSYassine SeffarLMLahbib MoutanassimMKMajid EL Kassaoui

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Overview

Demonstrates improved ammonia removal in wastewater using n-doped carbon electrodes, suggesting an eco-friendly solution.

Key Points

  • The aim is to assess the effectiveness of nitrogen-doped carbon electrodes for ammonia removal in capacitive deionization systems.
  • Synthesize nitrogen-doped carbon electrodes from ZIF-8 precursors via calcination.
  • Evaluate electrode performance in a flow-through capacitive deionization system.
  • Conduct experiments at varying calcination temperatures and operational conditions.
  • Apply density functional theory and molecular dynamics simulations to analyze ammonia adsorption mechanisms.
  • Use cyclic voltammetry and electrochemical impedance spectroscopy to assess electrochemical properties.
  • Achieved an ammonia adsorption capacity of 32 mg/g.
  • Doped carbon electrodes demonstrated a charge efficiency of 28-45%.
  • Optimal performance was identified at a calcination temperature of 800 °C.
  • Electrode performance was measured using a 500 mg/L NH4Cl feed at ±1.20 V.

Cite This Study

Seffar et al. (2026) studied this question.

synapsesocial.com/papers/69be34d16e48c4981c672f4dhttps://doi.org/10.1021/acs.langmuir.5c06636
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