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开发了硫聚烯树脂支持的氧化,用于Pb2+离子绑定

Kashmala Khaliq¹, Mohsin Ali Raza Anjum², Shabnam Shahida¹

¹Department of Chemistry, University of Poonch Rawalakot AJK Pakistan shabnamshahida01@gmail.com.

|May 2, 2025

概括

一种新型的硫酸聚烯树脂支持氧化 (SO3-PSWO) 有效地从水中去除 (Pb2+). 这种具有成本效益的吸附剂表现出高容量和快速动力学,用于水处理.

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:

水溶液中的 (Pb2+) 污染对环境和健康构成重大风险.
有效和经济高效的除方法对于水处理至关重要.
开发先进的吸附材料是重金属修复的关键策略.

研究的目的:

合成和表征一个硫聚烯树脂支持的氧化 (SO3-PSWO) 材料.
评估SO3-PSWO在从水溶液中去除离子 (Pb2+) 的效率.
研究通过SO3-PSWO去除Pb2+的吸附机制,动力学和热力学.

主要方法:

SO3-PSWO的合成,然后使用SEM,XRD,FTIR,TGA和CHNS分析进行表征.
使用ICP-OES对Pb2+离子进行定量分析.
系统地调查包括pH值,吸附剂剂量,接触时间,初始度,温度和干扰离子在内的参数.
吸附等温 (Langmuir) 和动力 (伪二阶) 建模.

主要成果:

在最佳条件下 (pH3.5-5.5) SO3-PSWO在1小时内显示出高的Pb2+去除效率 (99.7%).
该材料具有386毫克g-1的高吸附能力,与Langmuir异温模型相一致.
动力学研究表明了伪二次机制,表明化学吸收,热力学分析显示了自发的,外热吸收.

结论:

SO3-PSWO是一种高效,具有成本效益和快速作用的吸附剂,用于去除离子.
该材料的优越吸附能力和性能使其成为水处理和Pb2+污染补救的有希望的候选者.
该研究强调了树脂支持金属氧化物在环境应用中的潜力.

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