What question did this study set out to answer?

To develop a high-performance adsorbent capable of efficiently resolving copper(ii)-containing wastewater issues.

January 16, 2026RSC Advances0 citationsOpen Access

Preparation of chitosan-EDTA bifunctionally modified magnetic walnut shell biochar and study on its copper ion (Cu( ii )) adsorption performance

XZXuejian ZhouXinjiang Production and Construction Corps YYYufei YangXinjiang Production and Construction Corps RYRuiqi YangYunnan Normal University

Key Points

To develop a high-performance adsorbent capable of efficiently resolving copper(ii)-containing wastewater issues.
Synthesis of chitosan-EDTA modified biochar from walnut shells
Evaluation of copper ion adsorption performance
Comparison with existing adsorbents in efficiency
The newly developed adsorbent showed significantly improved copper ion removal
Performance exceeded that of traditional adsorbents
Demonstrated practical application potential in real wastewater treatment.

Abstract

This study aims to address the limitations of existing adsorbents in treating copper( ii )-containing wastewater by developing a high-performance and highly practical adsorbent.

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