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用金属氧化物浸的生物炭用于阿佐染料修复,通过动力学,热力学和响应表面方法学揭示了这一点

Adeel Aslam¹, Fozia Batool¹, Sobia Noreen¹

¹Institute of Chemistry, University of Sargodha, Sargodha 40100, Pakistan.

|February 5, 2024

概括

这项研究引入了来自Croton bonplandianus Baill的磁性复合生物炭. 为了有效地从废水中去除色剂. 这种新型吸附剂在基本棕色1和基本色2染料中实现了高吸附能力.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
吸附科学吸附科学

背景情况:

亚染料由于其毒性和持久性而带来重大环境风险.
从工业废水中去除色剂的有效和可持续方法至关重要.

研究的目的:

来自Croton bonplandianus Baill的新型磁性复合生物炭的合成和特征. (FO-CBPBB). 这是一个很大的问题.
评估FO-CBPBB的吸附能力,以从水溶液中去除两个色剂,基本棕色1 (BB1) 和基本色2 (BO2).
优化吸附条件并研究吸附机制.

主要方法:

合成含有Fe2O3的Croton bonplandianus Baill.的合成方法生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).生物炭 (FO-CBPBB).
使用扫描电子显微镜 (SEM) 和富里埃变换红外光谱 (FTIR) 进行表征.
批量吸附实验以优化pH值,接触时间,吸附剂剂量,初始染料度和温度,使用中央复合设计 (CCD) 进行分析.
吸附等温 (Langmuir, Freundlich) 和动力学 (伪二次) 研究.
热力学分析.热力学分析.

主要成果:

在优化条件下,FO-CBPBB吸附剂的吸附效率为BB1的93%和BO2的95% (pH7,80分钟,40°C,80毫克L-1初始度,1克L-1吸附剂剂量).
兰穆尔异热模型最好地描述了平衡数据,表明了最大吸附能力.
伪二阶动力学表明,吸附过程是由化学吸附控制的.
热力学研究显示了自发和内热吸附.
吸附机制主要是静电相互作用.

结论:

带有Fe2O3的Croton bonplandianus Baill. 这种植物有很多种. 生物炭 (FO-CBPBB) 是一种有效的,环保的,经济高效的吸附剂,用于从废水中去除色剂.
吸附剂具有出色的再生效率,使其成为传统处理方法的可行替代品.
该研究强调了基于生物炭的磁性复合材料在可持续净水方面的潜力.

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