Water dispersiblity and ultrovoilet light shielding properties of layered double hydroxide intercalated with avermectin

Water dispersible avermectin-layered double hydroxide nanocomposites were successfully prepared using sodium dodecyl sulfate as surface modifier. Concentrations of sodium dodecyl sulfate and NaCl had important effects on the product suspensibility, the highest value of which reached 97.6%. All the samples were characterized using zeta potential and contact angle measurements. Experimental results showed that the prepared nanocomposites could protect effectively the avermectin pesticide against UV light decomposition, suggesting the nanocomposites would be a promising candidate for water dispersible formulation, especially for photosensitive pesticides.