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 language | English |
|---|---|
| Article number | 860352 |
| Journal | Journal of Nanomaterials |
| Volume | 2012 |
| DOIs | |
| Publication status | Published - 2012 |
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ASJC Scopus subject areas
- Materials Science(all)
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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 journal › Article
}
TY - JOUR
T1 - Synthesis of a layered organic-inorganic nanohybrid of 4- chlorophenoxyacetate-zinc-layered hydroxide with sustained release properties
AU - Hussein, Mohd Zobir
AU - Nazarudin, Nor Farhana Binti
AU - Sarijo, Siti Halimah
AU - Yarmo, Mohd. Ambar
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
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U2 - 10.1155/2012/860352
DO - 10.1155/2012/860352
M3 - Article
VL - 2012
JO - Journal of Nanomaterials
JF - Journal of Nanomaterials
SN - 1687-4110
M1 - 860352
ER -