Caprylate intercalated layered double hydroxide as adsorbent of pesticides from aqueous solution

Abstract

Layered double hydroxides (LDHs) are anionic clays with high anion exchange capacities which could act as adsorbents for removal of anionic pollutants from waters. The replacement of original inorganic interlayer anions with organic species yields modified organo-LDHs with hydrophobic surface properties, which have higher affinity for the adsorption of low polar and non ionic contaminants. This study was carried out to elucidate the synthesis of organo-layer double hydroxide and its capacity to adsorbs the widely applied pesticides Linuron, 2,4-DB and Metamitron from waters.