Fabrication of magnetic-responsive controlled-release herbicide by a palygorskite-based nanocomposite
文献类型： 外文期刊
作者： Chi, Yu 1 ; Chen, Chaowen 2 ; Zhang, Guilong 4 ; Ye, Zhenghe 1 ; Su, Xianyan 1 ; Ren, Xuexiang 1 ; Wu, Zhengyan 2 ;
作者机构： 1.Anhui Acad Agr Sci, Inst Plant Protect & Agroprod Safety, 40 Nongkenan Rd, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab High Magnet Field & Ion Beam Phys Biol, 350 Shushanhu Rd, Hefei 230031, Peoples R China
3.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Environm Toxicol & Pollut Control Technol, 350 Shushanhu Rd, Hefei 230031, Peoples R China
4.Binzhou Med Univ, Sch Pharm, Key Lab Prescript Effect & Clin Evaluat, State Adm Tradit Chinese Med China, Yantai 264003, Shandong, Peoples R China
关键词： Magnetic; Controlled release; Herbicide; Palygorskite; Nanocomposite
期刊名称：COLLOIDS AND SURFACES B-BIOINTERFACES （ 影响因子：5.268； 五年影响因子：4.957 ）
ISSN： 0927-7765
年卷期： 2021 年 208 卷
页码：
收录情况： SCI
摘要： In this work, a type of magnetic-responsive controlled-release herbicide (MCRH) was developed using a nano-composite including palygorskite (Pal), ferroferric oxide (Fe3O4), glyphosate (Gly), and amino silicon oil (ASO). In this system, Pal with the structure of micro/nanonetworks can bind a large quantity of Gly and Fe3O4. The movement of Fe3O4 particles can be driven by a magnetic field to ensure the controlled release of pesticides. Gly, which is a type of nonselective herbicide, is widely used for weed control. In addition, ASO was selected as the coating agent to prevent Gly from rapidly releasing. In this work, the effects of the magnetic field, temperature, and coexisting ions on the release ratio of pesticides were investigated, and the results suggest that MCRH could effectively improve the utilization efficiency (UE) of Gly. In addition, zebrafish experiments indicate that MCRH has better biosafety than Gly.
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