化温度对马类骨氧酸结构和吸附效率的影响
Douae Touareb1, Souhayla Latifi1, Sarah Saoiabi2
1Laboratory of Applied Chemistry of Materials, Department of Chemistry, Faculty of Sciences, Mohammed V University in Rabat, Rabat, 10090, Morocco.
Scientific reports
|September 30, 2025
概括
来自马骨的酸有效地从水中去除有毒的 (Pb2+). 该HA-500样本实现了99%的除,展示了水生重金属修复的可持续解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学 化学 化学
背景情况:
- (Pb2+) 污染由于其毒性和持久性而造成重大环境危害.
- 开发具有成本效益和可持续的方法来从水生环境中去除重金属至关重要.
研究的目的:
- 从马头骨骨中合成酸 (HA).
- 研究HA作为一种用于Pb2+去除的低成本吸附剂.
- 评估烧温度对HA吸附性质的影响.
主要方法:
- 酸 (HA) 是从马骨中合成的,在100°C,500°C和900°C时被烧焦.
- 使用XRD,FTIR,SEM/EDX,TGA和XRF进行表征.
- 吸附实验以确定去除效率,动力学,等温和和热力学.
主要成果:
- 在HA-500中,Pb2+吸附率最高,可达到99%的去除率和50mg/g的容量.
- 吸附遵循伪二次动力学和弗洛伊德利希异热模型.
- Pb2+吸附是自发的和外热的,表明随机性增加.
结论:
- 马的骨头是合成用于重金属修复的酸的可行来源.
- 500°C的化优化了HA的结构和吸附性能,以消除Pb2+.
- HA-500证明了水生系统中可持续和高效的整治的潜力.
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