Controlled-release of Avermectin from Organically Modified Hydrotalcite-like Compound Nanohybrids

被引：17

作者：

Qiu Depeng ^{[1
]}

Li Yonghai ^{[1
]}

Fu Xiying ^{[1
]}

Jiang Zhen ^{[1
]}

Zhao Xinyan ^{[1
]}

Wang Tian ^{[1
]}

Hou Wanguo ^{[2
]}

机构：

[1] Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Shandong, Peoples R China

[2] Qingdao Univ Sci & Technol, Coll Chem & Mol Engn, Qingdao 266042, Shandong, Peoples R China

来源：

CHINESE JOURNAL OF CHEMISTRY | 2009年 / 27卷 / 03期

基金：

中国国家自然科学基金;

关键词：

avermectin; hydrotalcite-like compound; nanohybrid; controlled release formulation; pesticide; LAYERED DOUBLE HYDROXIDES; SURFACE MODIFICATION; METAL HYDROXIDE; DODECYL-SULFATE; INTERCALATION; ADSORPTION; PESTICIDES; CLAYS; WATER; ACIDS;

D O I：

10.1002/cjoc.200990073

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The intercalation of avermectin (AVM) into sodium dodecyl sulfate (SIDS) modified hydrotalcite-like compounds (HTlc) was carried out using an evaporating solvent enhanced intercalation method to obtain AVM-SDS-HTlc nanohybrids. It was found that the nanohybrids could well control the release of avermectin, showing the nanohybrids are a potential pesticide controlled-release formulation. The release of avermectin from AVM-SDS-HTlc nanobybrids is dependent on the pH, temperature and the presence of electrolyte in release medium. Acidic medium and higher temperature and the presence of electrolytes may induce the higher release rate of avermectin. The release process of avermectin from AVM-SDS-HTlc nanohybrids can be described by pseudo-first-order release kinetics, and the activation energy of release is 279 kJ/mol.

引用

页码：445 / 451

页数：7

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