高效吸附Pb (II) 通过修饰的焦岩:性能和机制
Yuting Yang1, Xiong Wang1, Sumra Siddique Abbasi1
1School of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China.
Toxics
|January 28, 2026
概括
经过修饰的克林诺皮托莱特 (MZ) 有效地从水中去除 (Pb(II)). 这种新型吸附剂显示出高容量和稳定性,为污染处理提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 水中的 (Pb (II)) 污染对环境和健康构成重大风险.
- 传统的水处理方法去除可能是低效或昂贵的.
- 像克林诺皮托利特这样的天然热石丰富,但往往需要修改以加强污染物吸附.
研究的目的:
- 为了合成和表征修饰的clinoptilolite (MZ) 以有效地去除Pb.
- 为了研究Pb的吸附动力学,异温,以及Pb (II) 对MZ的机制.
- 评估MZ在水处理相关的各种条件下的稳定性和性能.
主要方法:
- 通过沉和化合成MZ.
- 使用BET,XRD,SEM-EDX,FT-IR和XPS进行表征.
- 吸附实验以确定动力学,异热和pH和竞争离子的影响.
主要成果:
- MZ表现出伪二次动力学 (R2 = 0.9956) 和兰格穆尔等热量行为 (R2 = 0.9686).
- 获得了Pb (II) 的1656 mg/g的高最大吸附能力 (qm).
- 在pH值3.0-5.5和高度盐的存在下,表现稳定.
结论:
- 的修饰将clinoptilolite转化为Pb (II) 的高效吸附剂.
- 主要去除机制涉及表面复合和Pb的化学转化.
- MZ为处理污染水提供了一个有前途,稳定和高容量的材料.
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