DataVXChemNanoMatPaper
journal article·2025-12

Magnetic Porous Carbon Adsorbents Derived from Iron‐Containing Metal–Organic Frameworks for Efficient Cr(VI) Removal

Yulu Qu, Zaixing Yan, Wan Wang, Yajun Gao, Tianxiang Zhao

ChemNanoMat· Volume 11· Issue 12
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Source abstract

Abstract

The escalating threat of Cr(VI) contamination in water due to rapid industrialization necessitates the development of effective and economical removal technologies. Herein, the synthesis of porous carbon adsorbents (MECs) is reported through a one‐step carbonization process involving ethylenediaminetetraacetic acid dipotassium salt dihydrate (EDTA‐2K·2H 2 O) and an iron‐containing metal–organic framework, MIL‐100(Fe). MECs boast a high specific surface area (up to 1206.0 m 2 g −1 ) and magnetic properties, rendering them suitable for the adsorption and removal of Cr(VI) ions from aqueous solutions. The effects of various parameters, including pH, adsorbent dosage, temperature, contact time, and ion concentrations, on Cr(VI) removal are systematically investigated. The results indicate that MECs not only demonstrate high adsorption capacity, selectivity, stability, and reversibility but also achieve a maximum adsorption capacity of 296.0 mg·g −1 at 328.15 K within just 40 min. Furthermore, MECC, which was synthesized by directly carbonizing components MIL‐100(Fe) and EDTA‐2K·2H 2 O at a mass ratio of 1:8, can be easily recovered via magnetic recycling. Mechanistic studies have elucidated that Cr(VI) adsorption on MECs involves both physical and chemical interactions. This research provides valuable insights into the design of porous magnetic carbon materials for Cr(VI) removal applications.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Adsorption and biosorption for pollutant removal · Metal-Organic Frameworks: Synthesis and Applications · Layered Double Hydroxides Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Green Chemical and Clean Energy Technology School of Chemistry and Chemical Engineering Guizhou University Guiyang 550025 P. R.China

Department of General Education Army Engineering University of PLA Nanjing Jiangsu 211101 China

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