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纳米酸活性碳复合物的热水合成及其对尿素的缓释性能

Sabila Aulia Hemzah¹, Irwan Kurnia^2,3, Diana Rakhmawaty Eddy^1,4

¹Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang, 45363, Indonesia.

Scientific reports

|July 19, 2025

概括

一种新的纳米酸活性碳复合物 (HC) 作为尿素的缓释肥料. 性能最好的复合物 (HC1) 显著改善了尿素吸附和控制释放,提高了营养使用效率.

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:

过度的尿素应用会导致通过浸和蒸发而失去营养.
开发高效的缓释化肥对于可持续农业至关重要.
纳米材料为提高肥料性能提供了潜力.

研究的目的:

合成和评估纳米酸活性碳 (nHA-AC) 复合物作为尿素缓释材料 (SRM).
为了研究nHA-AC复合物的结构和吸附特性.
评估复合物的尿素释放动力学和吸附能力.

主要方法:

对nHA-AC复合材料的热水合成.
使用XRD,FTIR和TEM进行表征.
尿素吸附和释放的实验.
泽塔潜力和表面积分析.

主要成果:

观察到nHA纳米棒通过TEM覆盖了AC表面.
与纯的nHA.AC相比,nHA-AC复合物 (HC) 呈现出增强的尿素吸附和释放控制.
HC1复合物 (75:25 nHA:AC) 显示出最佳性能,在240分钟内释放17%的尿素,吸附能力为0.54g_尿素/g_SRM (36.2%).

结论:

合成的nHA-AC复合物是缓释尿素肥料的一个有希望的材料.
HC1复合物显示出提高农业营养使用效率的潜力.
这种材料提供了一种可持续的肥料应用方法,减少了环境损失.

关键词:

活性炭是一种活性炭.复合材料是一种复合材料.纳米氧亚帕提特是什么意思缓慢释放的材料可以缓慢释放.尿素氨基酸尿素氨基酸

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