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使用ZnO-Biochar纳米复合材料从废水中吸附性去除Pb2+

Hifsa Mudassar¹, Kiran Hina², Usman Ghani¹

¹Department of Environmental Science, Faculty of Science, University of Gujrat, Gujrat, 50700, Pakistan.

Scientific reports

|August 12, 2025

概括

这项研究表明,ZnO生物炭纳米复合材料有效地从工业废水中去除 (Pb2+),达到90.30%的去除率. 该材料表现出高吸附能力,表明其对可持续废水处理的潜力.

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:

工业废水排放的 (Pb2+) 对水质,人类健康和食物链构成重大风险.
由于其独特的特性,ZnO生物炭纳米复合材料已成为从废水中去除Pb2+的有希望的材料.

研究的目的:

为了评估准备好的ZnO-Biochar纳米复合材料在从废水中去除Pb2+方面的有效性.
描述ZnO-Biochar纳米复合材料并了解其对Pb2+的吸附机制.

主要方法:

里埃传输红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 用于材料表征.
进行了批量实验,以优化去除条件 (度,剂量,pH,接触时间).
吸附数据使用Langmuir模型,伪一阶模型和伪二阶模型进行分析.

主要成果:

ZnO-Biochar纳米复合材料表现出粗且多孔的表面,促进了Pb2+吸附.
获得了Pb2+的最大去除率90.30%.
最大吸附容量 (qmax) 确定为79.302 mg/g,符合兰迈尔模型.
伪二次动力学最好地描述了吸附过程 (R2 = 0.899).

结论:

准备好的ZnO-Biochar纳米复合材料对于从废水中去除Pb2+非常有效.
材料的表面形态和特性有助于其强大的吸附能力.
这项研究突出了ZnO-Biochar纳米复合物的潜力,用于可持续的工业废水处理.

关键词:

吸附方式吸附方式吸附方式里埃传输红外光谱法 (FTIR) 是一种技术.扫描电子显微镜 (SEM) 是一种扫描电子显微镜.污水处理污水处理污水处理在ZnO-Biochar纳米复合材料中.

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