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生物炭减少了生菜吸收的纳米塑料,并减轻了对植物的毒性

Anwar A Aly¹, Junjie Tang^2,3, Mahmoud Zanaty⁴

¹Soil and Water Science Department, Faculty of Agriculture, Alexandria University, Alexandria, 21545, Egypt.

Journal of agricultural and food chemistry

|February 13, 2026

概括

用铁添加的生物炭 (Fe-BC) 有效地减少了中纳米塑料 (NP) 的吸收60%. 这项研究表明Fe-BC可以减轻作物中的NP污染,保护食品质量和人类健康.

科学领域:

环境科学环境科学
农业科学农业科学
材料科学材料科学材料科学

背景情况:

农业土壤中微塑料和纳米塑料 (MP/NP) 的积累对食品安全和人类健康构成风险.
了解植物内NP转移对于评估作物污染至关重要.
生物炭修正案正在探索其减轻土壤污染物的潜力.

研究的目的:

评估原始生物炭 (BC) 和铁合生物炭 (Fe-BC) 在降低菜NP吸收方面的有效性.
为了比较BC和Fe-BC的特性及其对NP减小的影响.
评估生物炭修改对植物新陈代谢和土壤酶活性的影响.

主要方法:

松粉衍生的BC和Fe-BC通过一步热解来合成.
豆 (Lactuca sativa L. var. 这种豆是一种 adela) 在污染了Pd-dopedNP的土壤中生长.
进行了3%重量BC或Fe-BC的土壤应用,并量化了叶子NP度.

主要成果:

与BC相比,Fe-BC表现出增强的孔隙性,表面积和略微正的表面电荷.
证实NP会透到生菜根并转移到叶子上,在较老的组织中积累更高.
BC和Fe-BC都显著降低了叶子NP度,Fe-BC实现了大约60%的降低.
Fe-BC显示出更大的能力来缓解NP诱导的代谢干扰和恢复土壤酶活动.

结论:

用铁添加的生物炭 (Fe-BC) 是一种非常有效的修改剂,可以减少生菜中纳米塑料的吸收.
在减轻农作物中NP污染方面,Fe-BC比原始生物炭提供了优越的性能.
生物炭的应用,特别是Fe-BC,是保护作物质量和食品安全免受纳米塑料污染的有希望的战略.

关键词:

铁-生物碳化合物铁-生物碳纳米塑料的生物可用性生物炭是一种生物炭.纳米塑料固定化固定化植物健康问题植物健康

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