Fabrication of CuHCF/g-C3N4 Composite with Improved Electrochemical Adsorption Performance for Contaminated Radioactive 137Cs in Aqueous Solution

Sudarat Issarapanacheewin; Natthaya Siangdee; Witsanu Katekaew; Nikom Prasertchiewchan; Wilasinee Kingkam; Kanlayawat Wangkawong

doi:10.4028/p-Kci145

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 1027Fabrication of CuHCF/g-C3N4 Composite with...

Fabrication of CuHCF/g-C₃N₄ Composite with Improved Electrochemical Adsorption Performance for Contaminated Radioactive ¹³⁷Cs in Aqueous Solution

Abstract:

This study focuses on the development and application of a novel copper hexacyanoferrate/graphitic carbon nitride composite (CuHCF/g-C₃N₄), synthesized using urea as a precursor, for the electrochemical adsorption of radioactive cesium-137 (¹³⁷Cs) from wastewater generated by washing electric arc furnace dust (EAFD). The CuHCF/g-C₃N₄-urea composite was prepared via an ultrasonication method to enhance its electrochemical and adsorption properties, resulting in a porous, high-surface-area material with improved electron transfer capabilities. Characterization through SEM-EDS, XRD, BET and BJH confirmed the composite’s structure and the successful integration of CuHCF within the g-C₃N₄ matrix, while BET analysis showed an enhanced surface area conducive to improved adsorption efficiency. Key parameters, including electrolyte concentration, potential range, and scan rate, were optimized to maximize adsorption efficiency. The material demonstrated excellent ¹³⁷Cs removal performance, with an efficiency greater than 50% within 250 cycles using the electrochemical method. These findings highlight the potential of CuHCF/g-C₃N₄-urea as an efficient material for the removal of radioactive cesium in industrial wastewater, offering a promising approach for sustainable environmental clean-up.

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Periodical:

Key Engineering Materials (Volume 1027)

Pages:

85-91

DOI:

https://doi.org/10.4028/p-Kci145

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Online since:

October 2025

Authors:

Sudarat Issarapanacheewin*, Natthaya Siangdee, Witsanu Katekaew, Nikom Prasertchiewchan, Wilasinee Kingkam, Kanlayawat Wangkawong

Keywords:

CuHCF/g-C₃N₄- Urea Composite, Electric Arc Furnace Dust (EAFD), Electrochemical Adsorption, Radioactive ¹³⁷Cs, Ultrasonication

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