从水溶液中吸附,使用化学活性考林粘土吸附剂 动力学 异热和热力学研究
Abdullah Y Al Haj Ahmed1, Husam Al Najar2, Nasser Abu Ghalwa3
1Water Technology PhD Pragram at Islamic University and Al azhar University, Gaza, Palestine. abdullahhaj1983@gmail.com.
Scientific reports
|December 10, 2025
概括
化学活性考林粘土有效地从水中去除有毒的. 这种低成本,环保的吸附剂为受污染的地下水提供了切实可行的解决方案,解决了全球水质问题.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
背景情况:
- 水中的污染对人类健康,农业和生态系统构成风险.
- 传统的水处理方法对于可持续的去除通常是低效的.
- 对于具有成本效益和高性能吸附剂的需求至关重要.
研究的目的:
- 用盐酸 (HCl) 和酸 (H3PO4) 来化学激活考林粘土,以增强吸附.
- 为了研究活性高的结构和表面特性.
- 评估活性考林在各种条件下从水中去除的效率.
主要方法:
- 考林土是用HCl和H3PO4.4处理的.
- 福利埃变换红外光谱法 (FTIR),X射线光 (XRF) 和布鲁纳乌尔-埃梅特-泰勒 (BET) 分析用于表征.
- 进行了批量吸附实验,以优化pH,吸附剂剂量,初始度,接触时间和温度等参数.
- 进行了吸附异温,动力学和热力学研究.
主要成果:
- 化学激活显著改善了高的表面积和多孔性.
- 用HCl处理的考林达到2.39 mg/g的最大吸附能力,而用H3PO4处理的考林达到2.18 mg/g.
- 吸附在pH 4时是最佳的,并遵循伪二阶动力学.
- 弗洛伊德利希和西普斯的模型最好地描述了吸附平衡,表明异质表面的多层吸附.
- 这个过程是外热和自发的.
结论:
- 化学活性考林,特别是用HCl处理的考林,是一种高效的吸附剂,用于去除.
- 该方法具有成本效益,环保,适合处理污染的地下水.
- 活性考林为面临污染水污染挑战的地区提供了可行的解决方案.
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