通过从大米/酸/藻酸盐中合成的水凝去除重金属
Gui-Bing Hong1, Yue-Hui Lin1, Wang-De Lin2
1Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, Taiwan.
Scientific reports
|December 24, 2025
概括
这项研究开发了一种新型的水凝吸附剂,由大米,烯酸和藻酸盐组成,用于有效地从水中去除铜和离子. 这种环保材料具有很高的吸附能力和出色的可重复使用性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 水中的重金属污染对环境和健康构成重大风险.
- 开发具有成本效益和可持续的吸附剂对于水资源整治至关重要.
- 农业副产品为新型吸附材料提供了一个有希望的来源.
研究的目的:
- 使用大米 (RB),烯酸 (AA) 和藻酸盐 (SA) 合成一种新的水凝吸附剂.
- 评估吸附剂在从水溶液中去除铜 (Cu2+) 和 (Ni2+) 离子方面的效率.
- 研究开发的水凝的吸附机制和可重复使用性.
主要方法:
- 通过聚合RB,AA和SA的凝合成.
- 系统的吸附实验改变pH值,温度,初始金属离子度和吸附剂剂量.
- 吸附异温和动力学研究.
- 通过多个吸附-脱附周期评估吸附剂的可重复使用性.
主要成果:
- 这种新型的水凝吸附剂证明了有效地去除Cu2+和Ni2+.
- 最佳的Cu2+去除发生在pH值为5.5和30°C,容量为26.5mgg-1.1.
- 最佳的Ni2+去除发生在pH 8和30°C,容量为41.81 mgg-1.1.
- 吸附遵循兰格穆尔等温模型和伪二次运动模型.
- 吸附剂在五个循环后保持了超过85%的容量,表明可重复使用性良好.
结论:
- 合成的RB-AA-SA水凝是一种具有成本效益,环保和可重复使用的吸附剂,用于Cu2+和Ni2+的去除.
- 吸附剂显示出在废水处理中应用的巨大潜力.
- 了解吸附机制有助于优化水净化过程.
相关概念视频
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