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从不同来源制备生物炭并研究它们的吸附性质

Yinlong Shao¹, Anqi Hu², Yongcan Jiang^1,3

¹PowerChina Huadong Engineering Corporation Ltd., Hangzhou 311122, China.

Molecules (Basel, Switzerland)

|June 27, 2025

概括

来自小麦,竹子和水的铁改生物炭有效地从废水中去除. 小麦生物炭表现出最高的吸附能力,迅速达到平衡.

科学领域:

环境科学与工程环境科学与工程
材料科学材料科学材料科学
水处理技术水处理技术

背景情况:

生物炭是一种稳定的碳酸性材料,来自生物质热解,具有显著的吸附能力.
废水中的污染是一个关键的环境问题,需要有效的清除方法.
铁的修饰可以增强生物炭对污染物的吸附特性.

研究的目的:

为了研究从小麦中提取的生物炭的吸附性能,竹子,和铁修改后水.
为了确定不同类型的生物炭的最佳铁改性比.
为了比较修改生物炭的吸附能力和机制.

主要方法:

小麦,竹子和水的热解以产生生物炭.
在优化的质量比下对生物炭的铁改性.
使用FTIR,XRD和SEM进行改造生物碳的表征.
批量吸附实验以确定吸附能力和动力学.

主要成果:

确定了最佳的铁碳质量比:小麦生物炭 (Fe-WBC) 的0.70,竹生物炭 (Fe-BBC) 的0.45,水生物炭 (Fe-HBC) 的0.45.
最大吸附能力按照以下顺序进行:Fe-WBC (31.76毫克g-1) >Fe-HBC (27.14毫克g-1) >Fe-BBC (25.31毫克g-1).
对于所有修饰的生物炭,在30分钟内达到吸附平衡,Fe-WBC表现最好. 吸附机制在单层和多分子层吸附之间有所不同.

结论:

铁的修饰显著提高了来自各种生物质来源的生物炭的吸附能力.
Fe-WBC在去除方面表现出卓越的性能,这是由于其表面化学和结构稳定性.
这些铁改性生物炭代表了有希望的可持续材料,用于废水处理中的高效修复.

关键词:

吸附吸附是一种吸附.生物炭是一种生物炭.铁氧化物铁氧化物修改的意思是改变的意思.是一种的物质.

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