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Structural regulation of β-ketoenamine covalent organic framework as efficient and environment-friendly nanocarrier for herbicide Dicamba

文献类型： 外文期刊

作者： Ma, Xiaoxu 1 ; Ning, Jing 2 ; Zhang, Jianping 2 ; Liu, Mingxin 1 ; Cao, Lidong 1 ; Huang, Qiliang 1 ; Hao, Long 2 ; Cao, Chong 1 ;

作者机构： 1.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100193, Peoples R China

2.Qingdao Agr Univ, Coll Chem & Pharmaceut Sci, Qingdao 266109, Peoples R China

关键词： Covalent organic framework (COF); Structural regulation; Nanopesticide; Sustainable agriculture; Herbicide

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.2； 五年影响因子：6.2 ）

ISSN： 0926-6690

年卷期： 2025 年 234 卷

页码：

收录情况： SCI

摘要： In order to reduce the risk of dicamba volatilization and leaching to the environment, (1-ketoenamine covalent organic frameworks (COFs) were developed as nanocarriers through reversible hydrogen bonding between the carboxyl group of dicamba and the (1-keto group of COFs. By tuning the pore size and functional groups, the dicamba loading of TpBD-COF reached 28.5 wt%. The resulting Dicamba@TpBD-COF reduced the volatility of dicamba by 50.62 % and minimized leaching, while maintaining herbicidal efficacy comparable to that of commercial formulations. Both TpBD-COF and Dicamba@TpBD-COF were biosafety for non-targeted wheat seedlings and even slightly promoted growth and photosynthesis. Treated soils showed a more complex community of nitrogen-fixing microorganisms that contributed to plant health. This strategy significantly reduced the environmental impact, maintained weed control, and improved safety for non-targets, highlighting the potential of COF as an eco-friendly pesticide carrier.

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