Quinoline-functionalized graphene oxide for enhanced cadmium removal: synthesis, characterization, and mechanistic insights

RSC Advances 2026 Open access

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Authors: Huda Ammar, Mohamed F. Kamel, Ahmed M. Masoud, Entsar H. Taha, Adel A. El-Zahhar, Majed M. Alghamdi, Mohamed H. Taha
DOI: 10.1039/d6ra00200e
Cited by: 2
References: 57

Abstract

° < 0) indicated a spontaneous, exothermic adsorption process governed primarily by chelation-driven inner-sphere complexation and interfacial dehydration. The sorbents exhibited excellent regenerability, achieving 93.6% Cd(ii) desorption using 1.0 M HCl. Importantly, treatment of a real industrial raffinate resulted in 94.2% Cd(ii) removal with minimal co-ion interference, confirming high selectivity under realistic conditions. Overall, this study demonstrates that quinoline-functionalized graphene oxide provides a simple, tunable, and reusable platform for high-performance cadmium remediation in complex aqueous matrices.

Fields of Study & Subjects

Adsorption and biosorption for pollutant removal Geochemistry and Elemental Analysis Graphene and Nanomaterials Applications

Publication details

Journal / source
RSC Advances
Publisher
Royal Society of Chemistry (RSC)
Volume
16
Issue
16
Pages
13960–13981
Publication date
1 January 2026
Language
EN