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Water retention and slow release studies of salep-based hydrogel nanocomposite reinforced with montmorillonite clay

Abstract

A slow release NPK fertilizer formulation was prepared by in-situ free radical graft polymerization of salep with acrylic acid (AA) monomer in the presence of montmorillonite (MMT) and fertilizer. Evidence of component interactions, morphology, thermal properties, and fertilizer incorporation into hydrogel nanocomposite fertilizer formulation was obtained by FTIR, XRD, TGA, and SEM techniques. The swelling behavior of hydrogels in various pH and saline solutions was investigated. Additionally, the water retention capability of loamy sand soil having the prepared fertilizer formulation was evaluated. Results showed that synthesized hydrogels have pH and salt sensitive swelling behavior as well as good water retention behavior. Fertilizer release studies also showed that the presence of MMT caused formulation system to liberate the nutrient in a more controlled manner. Finally, these good characteristics showed that these formulations are potentially applicable for agricultural and horticultural purposes.

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Publication details

The article was received on 24 Sep 2017, accepted on 06 Jan 2018 and first published on 08 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ03667A
Citation: New J. Chem., 2018, Accepted Manuscript
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    Water retention and slow release studies of salep-based hydrogel nanocomposite reinforced with montmorillonite clay

    A. Olad, H. Zebhi, D. Salari, A. Mirmohseni and A. Reyhanitabar, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ03667A

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