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Efficient elimination of trace iodide ions from medical wastewater by Cu/Cu2O@AC composites

  • 期刊论文

  • 发表日期：

    2024年7月5日

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  • Lu-Wei Zhou,
  • Kai-Wei Chen,
  • Xiao-Jun Dai,
  • Tai-Fei Qiao,
  • Hong-Yu Liu,
  • Ji-Gen Lu,
  • Peng Wang,
  • Chun-Hui Gong,
  • Shao-Gang Deng,
  • Ming Xia,
  • Fei Ni,
  • Guo-Min Tang,
  • Yong-Bing Zhang,
  • Yi Yang

摘要

Cu/Cu2O-modified activated carbon composites (Cu/Cu2O@AC) were synthesized via an one-step solvothermal method. The characterization results indicated that copper was uniformly dispersed on the surface of AC as nano-sized Cu0 and Cu(I), which allowed Cu/Cu2O to make full contact with I−. The high specific surface area of Cu/Cu2O@AC and the affinity of Cu+ for I− led to the equilibrium adsorption capacity within forty minutes. Additionally, the removal of trace I− (300 μg L−1) at pH = 3 by Cu/Cu2O@AC reached 96.4%. This work provides a promising application for the inexpensive and efficient capture of trace iodine from medical wastewater.

Graphical abstract

We synthesized Cu/Cu2O@AC composites for adsorption of iodide ions in solution.