一种含有N,S的石墨烯氧化物复合物,用于从水溶液中吸附性去除p-Nitrophenol
Bi Yang1, Tao-Tao Shi2, Wei-Guo Hu1
1College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
Molecules (Basel, Switzerland)
|May 14, 2025
概括
一种新型的石墨烯氧化物复合物与3-amino-5-mercapto-1,2,4-triazole (GO-ATT) 功能化,有效地从废水中去除p-nitrophenol. 这种吸附剂显示出高效率,可重复使用性和稳定性,用于污染物去除.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 污染废水的化合物,如p-尼托 (PNP) 构成环境风险.
- 开发高效且可重复使用的吸附剂对于有效的废水处理至关重要.
研究的目的:
- 为了合成和表征一种新型的石墨烯氧化物复合物,该复合物与3-amino-5-mercapto-1,2,4-triazole (GO-ATT) 功能化.
- 为了评估GO-ATT在从水溶液中去除p-nitrophenol的效率.
- 通过GO-ATT研究PNP去除的吸附机制,动力学和热力学.
主要方法:
- 对GO-ATT复合物的共价合合成.
- 使用FT-IR,SEM,TGA,XRD,XPS,Zeta潜力和BET分析进行表征.
- 批量吸附实验以优化参数 (接触时间,pH,度,温度) 和研究吸附行为.
主要成果:
- GO-ATT复合物已经成功合成和表征.
- 在25°C时达到0.287 mmol g-1的PNP最大吸附能力.
- 吸附遵循弗洛伊德利希等温和和伪二次动力学,表明由静电,π-π堆叠和键相互作用驱动的物理吸附.
- 吸附剂表现出很好的可重复使用性,在10个循环后的去除率为94%.
结论:
- GO-ATT复合物是一种高效,稳定和可重复使用的吸附剂,用于p-nitrophenol去除.
- 这种材料显示出在废水中处理污染物的巨大潜力.
- 该研究强调了氧化石墨烯对环境应用的共价功能化的优点.
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