Inorganic Chemicals Industry >
Study on capacitive deionization of Cs+ by ACC/CuHCF composite electrode
Received date: 2025-04-09
Online published: 2025-06-10
To efficiently remove Cs⁺ from aqueous solutions，activated carbon fiber cloth/copper hexacyanoferrate（ACC/CuHCF） composite electrodes were successfully fabricatedvia a coprecipitation method.In combination with capacitive deionization（CDI） technology， the effects of applied voltage，initial Cs⁺ concentration，competing ions，and cycling usage on adsorption performance were investigated.The electrode material′s morphology，structure，elemental composition，and electrochemical properties were characterized using varieties techniques.The results indicated that ACC/CuHCF exhibited a face-centered cubic structure，which facilitated ion migration and demonstrated excellent electrochemical adsorption performance.Under optimized conditions，the composite electrode achieved a maximum adsorption capacity of 184.98 mg/g for Cs⁺.Moreover，the ACC/CuHCF composite electrode demonstrated excellent Cs⁺ selectivity and robust cycling stability.Adsorption kinetics and isotherm model fitting revealed a surface-heterogeneous monolayer chemisorption process，with the rate controlled by diffusion resistance within the particles.This study provided an effective strategy for the efficient removal of Cs⁺ from aqueous solutions.
LI Xukai , CHEN Sili , JING Qing , GUO Liang , ZHANG Zhengke , WANG Jinsong . Study on capacitive deionization of Cs+ by ACC/CuHCF composite electrode[J]. Inorganic Chemicals Industry, 2026 , 58(3) : 16 -24 . DOI: 10.19964/j.issn.1006-4990.2025-0159
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