控制释放的肥料输送系统来源于米纤维素纳米纤维:一个循环经济为可持续发展的解决方案
Neha Sharma1,2, Benjamin James Allardyce2, Rangam Rajkhowa2
1TERI Deakin Nanobiotechnology Centre, Sustainable Agriculture Division, Gurugram, Haryana, India.
Bioengineered
|August 7, 2023
概括
研究人员使用米草纤维素纳米纤维的方法开发了一种可持续的肥料输送系统. 这种具有成本效益的生物材料可以控制化的释放,减少传统肥料对环境的破坏.
科学领域:
- 材料科学 材料科学 材料科学
- 农业科学 农业科学
- 环境科学 环境科学
背景情况:
- 对以石油为基础的材料的可持续替代品的需求日益增长.
- 生物材料为可持续性提供可再生性,生物降解性和成本效益.
- 需要生态友好型的肥料输送系统来缓解环境问题.
研究的目的:
- 探索一种基于生物材料的,具有成本效益的植物肥料输送系统.
- 为了利用大米 (农业废物) 提取和修改纤维素.
- 从农业废物中开发一种可控释放的肥料系统.
主要方法:
- 从草中提取纤维素,通过处理 (12% NaOH) 和基于 TEMPO 的氧化.
- 使用FTIR,SEM和TEM进行纤维素纳米纤维 (CNF) 的表征.
- 在不同比例 (1:1, 1:2, 2:1 w/w) 的CNF上加载化肥和释放动力学研究.
主要成果:
- SEM揭示了直径为17±4纳米的CNF和松散的纤维结构.
- 表面电荷变化证实了化负荷,在1:1的比例下从-42.0mV显著降低到-12.8mV.
- 在1:1的比例下观察到受控释放,显示8天内58%的累积氨离子释放.
结论:
- 米可以转化为有价值的纤维素纳米纤维,用于施肥.
- 开发的生物材料系统提供了可持续和可控的基肥料释放.
- 这种方法为农业废物提供了增值的利用,促进了对环境友好的农业实践.
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