Controlled synthesis of Fe3O4/MnO2 (3 1 0)/ZIF-67 composite with enhanced synergetic effects for the highly selective and efficient adsorption of Cu (II) from simulated copperplating effluents

Fan Wang, Yueying Zheng, Xinggang Wei, Dawei Lan, Jintao Zhu, Yingjie Chen, Ziquan Wo, Tao Wu

Research output: Journal PublicationArticlepeer-review

8 Citations (Scopus)

Abstract

This study designed a composite material with internal synergistic effects among multiple components to achieve highly selective adsorption of Cu (II). Through controlled synthesis, the Fe3O4/MnO2(3 1 0)/ZIF-67 composite was successfully fabricated, leading to significant improvement in adsorption selectivity, capacity, and adsorption rate. The experimental results showed that the composite is of outstanding selectivity in the adsorption of Cu (II), with a partition coefficient K of Cu (II) that was 2.2–5.3 times higher than that of other coexisting ions. Moreover, the composite exhibited a remarkable adsorption capacity of 1261.0 mg g−1 and a fast adsorption rate of 840.7 mg g−1 h−1 at 298 K. Additionally, its magnetic property facilitated easy separation from wastewater, thereby enhancing its potential for commercial applications. The synergetic effect mechanism was analyzed through characterizations and DFT calculations. Furthermore, the recyclability of the composite was investigated, which showed that after seven cycles, the adsorption efficiency remained at 85% of its initial efficiency. It can be concluded that Fe3O4/MnO2(3 1 0)/ZIF-67 has potential to address challenges posed by heavy metal pollution in copperplating effluents.

Original languageEnglish
Article number116940
JournalEnvironmental Research
Volume237
DOIs
Publication statusPublished - 15 Nov 2023

Keywords

  • DFT
  • Facet engineering
  • MnO
  • Synergetic adsorption
  • Wastewater treatment
  • ZIF-67

ASJC Scopus subject areas

  • Biochemistry
  • General Environmental Science

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