扩展石墨/桑坦-谷氨接种复合材料的建造,以有效地进行批量和固定柱床吸附离子
Ahmed Hussain Jawhari1, Haleema Yahya Otaif1, Nasser Amri1
1Department of Physical Sciences, Chemistry Division, College of Science, Jazan University, P.O. Box. 114, Jazan 45142, Kingdom of Saudi Arabia.
International journal of biological macromolecules
|June 10, 2025
概括
一种新的复合吸附剂EGXg有效地从水中去除离子 (Pb2+). 这种高性能材料具有出色的吸附能力和可重复使用性,为减少污染提供了一个有前途的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 离子 (Pb2+) 污染对环境和健康构成重大风险.
- 传统的吸附剂往往缺乏有效去除所需的效率.
- 开发新型,高性能吸附剂对于解决污染至关重要.
研究的目的:
- 为了合成和描述新型的复合吸附剂,以去除离子.
- 为了评估扩张石墨/桑坦-谷氨胺 (EGXg) 复合物的Pb2+离子的吸附性能.
- 为了研究吸附动力学,等温,热力学和开发的吸附剂的可重复使用性.
主要方法:
- 扩张石墨 (EG),EG/香丹 (EGX),谷氨胺/香丹 (Xg) 和EGXg复合材料的合成和表征.
- 批量吸附实验以确定最佳条件 (剂量,时间,温度,pH).
- 动力,同热和热力学建模,以及柱吸附研究.
主要成果:
- EGXg吸附剂表现出高表面积 (255.69 m2/g) 和最佳孔半径 (1.653 nm).
- 使用EGXg,获得了Pb2+离子的508.54 mg/g的最大批量吸附能力.
- EGXg在六个周期内表现出极好的可重复使用性,效率损失最小,有效的柱子吸附性能.
结论:
- EGXg复合物是一种高效且可重复使用的吸附剂,用于从水溶液中去除离子.
- 吸附过程遵循伪第一阶动力学和兰木尔异热,表明自发和外热性质.
- 开发的EGXg吸附剂显示出在水处理中实际应用的巨大潜力.
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