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Updated: Jun 23, 2026

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对Pb的新方法 (II) 使用纳米粉末酸从水性介质中去除:动力学研究和热力学行为研究

Ionela Carazeanu Popovici¹, Simona Dobrinaș¹, Alina Soceanu¹

¹Chemistry and Chemical Engineering Department, Ovidius University of Constanta, 900527 Constanta, Romania.

International journal of molecular sciences

|September 28, 2023

概括

酸 (Na₂TiSiO₅) 有效地从水中去除离子 (Pb(II)). 这种微孔材料具有很高的吸附能力和自发的内热吸附过程.

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:

水中 (Pb(II)) 污染对环境和健康构成重大风险.
开发高效的吸附剂来去除重金属对于水处理至关重要.

研究的目的:

通过sol-gel方法合成和鉴定微孔酸 (Na₂TiSiO₅) 的特性.
为了研究Na₂TiSiO₅的吸附特性,用于从水溶液中去除Pb(II).
分析合成材料的吸附动力学,热力学和容量.

主要方法:

太阳凝合成Na₂TiSiO₅. 这是一个非常好的方法.
使用TG-DTG,XRD,SEM和TEM进行表征.
批量吸附实验不同接触时间,初始Pb (II) 度,pH和温度.

主要成果:

Na2TiSiO5纳米粉成功合成了.
吸附动力学最适合PS顺序模型 (R²: 0.996-0.999).
吸附数据与兰木尔和雷德利希-帕特森模型 (R²: 0.9936-0.9996) 相一致.
在298K时最大吸附能力达到155.71mg/g.
在120分钟内,超过85%的Pb(II) 清除发生了.

结论:

Na₂TiSiO₅是一种高效的吸附剂,用于Pb(II) 的去除.
吸附过程是自发的,内热的和驱动的.
该材料表现出快速的Pb(II) 吸收,使其成为水处理应用的前景.

关键词:

吸附吸附是一种吸附.动力学和异热模型.引领去除除除除除除除除除酸的酸.

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