3,4-dichlorophenoxyacetate interleaved into anionic clay for controlled release formulation of a new environmentally friendly agrochemical

• Published in: Nanoscale Research Letters
• Main Author: Ghazali S.A.I.S.M.; Hussein M.Z.; Sarijo S.H.
• Format: Article
• Language: English
• Published: Springer New York LLC 2013
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887275218&doi=10.1186%2f1556-276X-8-362&partnerID=40&md5=3bed9a29f49de5f5d267977e78ce0359

A new layered organic-inorganic nanohybrid material, zinc-aluminum-3,4-dicholorophenoxyacetate (N3,4-D) in which an agrochemical, 3,4-dichlorophenoxyacetic acid (3,4-D), is intercalated into zinc-aluminum-layered double hydroxide (ZAL), was synthesized by coprecipitation method. A well-ordered nanomaterial was formed with a percentage loading of 53.5% (w/w). Due to the inclusion of 3,4-D, basal spacing expanded from 8.9 Å in ZAL to 18.7 Å in N3,4-D. The Fourier transform infrared study shows that the absorption bands of the resulting nanohybrid composed of both the 3,4-D and ZAL further confirmed the intercalation episode. Thermal analysis shows that ZAL host enhances the thermal stability of 3,4-D. Controlled-release experiment shows that the release of 3,4-D in the aqueous media is in the order of phosphate > carbonate > sulfate > chloride. These studies demonstrate the successful intercalation of the 3,4-D and its controlled release property in various aqueous media. © 2013 Ghazali et al.; licensee Springer.