Synthesis of a layered organic-inorganic nanohybrid of 4- chlorophenoxyacetate-zinc-layered hydroxide with sustained release properties

Mohd Zobir Hussein, Nor Farhana Binti Nazarudin, Siti Halimah Sarijo, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A zinc-layered hydroxide-4-chlorophenoxy acetate (4CPA) organic-inorganic nanohybrid was prepared using a simple direct reaction of 4CPA anions with ZnO under an aqueous environment to be used as a controlled release formulation of the herbicide, 4CPA. The concentration of the active agent, 4CPA, was found to be a controlling factor for the formation of a pure phase well-ordered nanolayered hybrid in which it could be synthesised at 0.2M 4CPA. ZnO shows a well-defined grain structure of variable size in the nanometre range. However, the formation of the 4CPA-ZLH nanohybrid resulted in a flake-like fibrous structure. On heating at 500°C for 5h under atmospheric conditions, the nanohybrid transformed back to a well-defined grain structure, as previously observed with the starting material, ZnO. The release of 4CPA was found to occur in a controlled manner and was generally governed by pseudo-second-order kinetics.

Original languageEnglish
Article number860352
JournalJournal of Nanomaterials
Volume2012
DOIs
Publication statusPublished - 2012

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Crystal microstructure
Acetates
Zinc
Herbicides
Negative ions
Heating
Kinetics
zinc hydroxide
Anions

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Synthesis of a layered organic-inorganic nanohybrid of 4- chlorophenoxyacetate-zinc-layered hydroxide with sustained release properties. / Hussein, Mohd Zobir; Nazarudin, Nor Farhana Binti; Sarijo, Siti Halimah; Yarmo, Mohd. Ambar.

In: Journal of Nanomaterials, Vol. 2012, 860352, 2012.

Research output: Contribution to journalArticle

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