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使用渣的多孔材料的合成及其在水溶液中的离子吸附性能

Guangjun Lu¹, Jingang Han¹, Ying Chen¹

¹State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China.

Materials (Basel, Switzerland)

|November 25, 2023

概括

基于渣的多孔材料被合成,以有效地去除 (Pb2+). 这些材料具有很高的吸附能力,可以从溶液中去除99%以上的.

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:

渣是一种工业副产品,具有价值化潜力.
开发有效的吸附剂来去除重金属对于环境保护至关重要.
多孔材料为吸附应用提供了很大的表面积.

研究的目的:

合成基于渣的多孔材料 (MSBPM) 用于离子 (Pb2+) 吸附.
研究合成参数对MSBPM属性和性能的影响.
评估MSBPM的吸附能力和消除Pb2+的机制.

主要方法:

性激活和泡方法用于MSBPM合成.
显微镜被用来观察微观形态和多孔性.
进行了批量吸附实验,以研究pH值,初始度和吸附剂剂量的影响.

主要成果:

最佳条件产生了MSBPM-H₂O₂ (8.46 MPa,396.11 mg·g^-1 Pb²⁺ 容量) 和MSBPM-Al (5.27 MPa,424.89 mg·g^-1 Pb²⁺ 容量) 的结果.
这两种材料都在pH 6.0下从溶液 (200500 mg·L-1) 中去除了99%以上的Pb2+.
吸附遵循兰格穆尔等温和和伪二阶动力学,表明单层化学吸附.

结论:

MSBPM是从水溶液中去除Pb2+的有效吸附剂.
合成参数显著影响MSBPM的特性和吸附性能.
吸附机制涉及单层化学吸附,这表明工业废水处理的潜力.

关键词:

在Pb2+中,Pb2+是吸附吸附是一种吸附.地质聚合物地质聚合物的废渣是的废渣,它可以有孔的材料是多孔的材料.

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