作为一种高效的吸附剂,用于从水性介质中去除甲基蓝的宁纳米颗粒
Reza Pourbaba1, Ali Abdulkhani1, Alimorad Rashidi2
1Department of Wood and Paper Sciences and Technology, Faculty of Natural Resources, University of Tehran, Karaj, Iran.
Scientific reports
|April 19, 2024
概括
通过水热热方法合成的素纳米粒子 (LNPs) 显示出明显增强的吸附力,用于甲蓝色染料的去除. 这些工程LNP为工业废水处理提供了可持续和高效的解决方案.
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:
- 工业废水往往含有持久性有机染料,如甲蓝.
- 传统的吸附剂可能会受到低效率,缓慢的动力学或糟糕的可重复使用性的影响.
- 氨酸是一种可再生生物聚合物,具有作为吸附剂的潜力,但需要进行结构修改以提高性能.
研究的目的:
- 使用水热热方法合成素纳米粒子 (LNPs).
- 评估LNP的吸附能力,以去除甲基蓝色染料.
- 为了比较LNP与原始红素 (PL) 粉末的性能.
主要方法:
- 实力素使用p-toluenesulfonic酸进行加工,以形成LNP (~200 nm).
- 描述包括SEM,AFM,DLS,泽塔潜力和BET分析.
- 进行批量吸附实验,以确定染料去除能力和动力学.
主要成果:
- 水热合成产生了微孔的LNP,其表面积是PL (3.4 m2/g) 的4倍 (14.9 m2/g),而不是PL (3.4 m2/g).
- 与PL (20.74 mg/g) 相比,LNP的甲蓝去除能力是PL的14倍 (127.91 mg/g).
- 吸附平衡是迅速达到 (3分钟LNPs对10分钟PL),以后伪二次动力学和兰木尔等温模型.
结论:
- 热合成是一种可扩展和可持续的方法,用于生产高效的基于素的纳米吸收剂.
- 工程LNP提供优越的吸附性能,由于增加了表面积和可访问的结合点.
- 液态污水处理系统是从工业废水中去除有机染料的有希望的解决方案.
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