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<p>In this work, a novel phosphorus functionalized carbon nitride (PCN) was designed and synthesized by a pyrolysis method for rapid adsorption of uranium. The optimized sample obtained at 600&#xa0;°C (marked as PCN-600) exhibited the highest ability for uranium adsorption with efficiency of over 96% in only 1&#xa0;min. The PCN-600 also exhibited high selectivity for uranium adsorption from simulated wastewater containing multiple interfering ions. The characterization results further revealed that the main adsorption mechanism of the uranium on PCN-600 is chemisorption. This work provides newly insight into adsorbent design for uranium removal from wastewater.</p>

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Phosphorus functionalized carbon nitride for rapid adsorption of uranium from aqueous solution

  • 期刊论文

  • 发表日期：

    2025年1月29日

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  • Youkui Zhang,
  • Ruojing Deng,
  • Junbo Zeng,
  • Fanyue Shi,
  • Sanquan Yang,
  • Yingshuo Wu,
  • Tao Duan

摘要

In this work, a novel phosphorus functionalized carbon nitride (PCN) was designed and synthesized by a pyrolysis method for rapid adsorption of uranium. The optimized sample obtained at 600 °C (marked as PCN-600) exhibited the highest ability for uranium adsorption with efficiency of over 96% in only 1 min. The PCN-600 also exhibited high selectivity for uranium adsorption from simulated wastewater containing multiple interfering ions. The characterization results further revealed that the main adsorption mechanism of the uranium on PCN-600 is chemisorption. This work provides newly insight into adsorbent design for uranium removal from wastewater.