数字农科院2.0

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

作者机构：

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

期刊名称： Industrial Crops and Products

ISSN： 0926-6690

年卷期： 2025 年 234 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： In order to reduce the risk of dicamba volatilization and leaching to the environment, β-ketoenamine covalent organic frameworks (COFs) were developed as nanocarriers through reversible hydrogen bonding between the carboxyl group of dicamba and the β-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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