氨氧化和酸改性小麦生物炭:制备,表征和环境应用
Agnieszka Tomczyk1, Justína Vitková2, Natália Botková3
1Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290, Lublin, Poland.
Chemosphere
|April 7, 2024
概括
化学修饰的生物炭,使用氨或酸,有效地去除污染物,如恩洛夫洛克萨和银纳米粒子. 氨基改性生物炭 (BCN) 显示出最佳性能,增强环境应用的土壤特性.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 土壤科学 土壤科学
背景情况:
- 从小麦中提取的生物炭可以被修改以增强其性能.
- 无机和有机的修改改变了生物炭的表面化学和性能.
- 了解这些修改对于环境修复至关重要.
研究的目的:
- 评估小麦生物炭的无机 (氧化) 和有机 (酸) 修饰.
- 评估修饰生物炭对污染物吸附 (氧素,银纳米颗粒) 和DOC释放的影响.
- 研究改性生物炭对蒙特莫里隆石水物理和吸附性能的影响.
主要方法:
- 在650°C的温度下生产了小麦的生物炭.
- 无机修饰使用氨氧化;有机修饰使用酸.
- 进行了吸附实验,DOC释放分析和水物理性质评估.
主要成果:
- 氨的修改引入了氨基群,酸引入了基.
- 氨基改性生物炭 (BCN) 显示了最低的溶解有机碳 (DOC) 释放量.
- BCN证明了对恩洛夫洛克萨和银纳米颗粒的吸附效率最高.
- BCN提高了蒙莫里隆石的吸附能力和和液压导电性.
结论:
- 化学改性生物炭,特别是 BCN,显示出从水性介质中去除污染物的巨大潜力.
- 改性生物炭可以增强土壤组分的水物理和吸附特性,如蒙特莫里隆尼特.
- 这些材料为环境修复和土壤改善提供了有前途的解决方案.
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