Preparation and Application of a Carboxymethylcellulose-Based Citric Acid-Crosslinked Coated Fertilizer System

Vince St. Mesias; Anne Bernadette Agu; Precious Japheth Benablo; David P. Penaloza Jr.

doi:10.4028/www.scientific.net/MSF.1009.54

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HomeMaterials Science ForumMaterials Science Forum Vol. 1009Preparation and Application of a...

Preparation and Application of a Carboxymethylcellulose-Based Citric Acid-Crosslinked Coated Fertilizer System

Abstract:

A carboxymethylcellulose-based encapsulant system for the controlled release of nitrogen-phosphorus-potassium (NPK) fertilizer was synthesized using alginate as a stabilizer, and citric acid as a crosslinking agent. Fourier-transform infrared (FT-IR) spectroscopy, particle size analysis, zeta potential measurement, and scanning electron microscopy showed successful crosslinking, sufficient particle size and colloidal stability, as well as the topography of the formed particles. Fluorescence spectroscopy confirmed successful encapsulation of a model system, 8-anilino-1-napthalenesulfonic acid. Release behavior studies under various pH conditions showed that CMC/Alg NPK conformed to the standards of controlled release fertilizer with a maximum release rate of 50% over the span of 30 days.

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Materials Science Forum (Volume 1009)

Pages:

54-59

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1009.54

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Online since:

August 2020

Authors:

Vince St. Mesias, Anne Bernadette Agu*, Precious Japheth Benablo, David P. Penaloza Jr.

Keywords:

Carboxymethylcellulose, Controlled Release, Crosslinking, Encapsulation, NPK Fertilizer

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