Clay‐Loaded Starch‐Grafted Chitosan as Environmentally Controlled Release Material for Atrazine

Herein, controlled‐release material for atrazine (ATZ) herbicide was formulated using different ratios of kaoline (Kao) clay‐loaded starch (ST)‐grafted chitosan (CHT). The materials were characterized by FTIR, SEM and EDX. The ATZ‐release kinetics were studied using the zero‐order, first‐order and K...

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Bibliographic Details
Published in:Applied and environmental soil science 2024-01, Vol.2024 (1)
Main Authors: Jindor, Norbert J, Amenorfe, Leticia P, Kangmennaa, Ahmed, Forkuo, Richard B, Okyere, Harry, Boadi, Nathaniel O, Opoku, Francis
Format: Article
Language:English
Subjects:
Agricultural production
Analysis
Atrazine
Biodegradation
Biopolymers
Chitosan
Clay
Conductivity
Controlled release
Heat resistance
Herbicides
Hydrogels
Microwaves
Particle size
Pesticides
Soils
Starch
Test methods
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Summary:Herein, controlled‐release material for atrazine (ATZ) herbicide was formulated using different ratios of kaoline (Kao) clay‐loaded starch (ST)‐grafted chitosan (CHT). The materials were characterized by FTIR, SEM and EDX. The ATZ‐release kinetics were studied using the zero‐order, first‐order and Korsmeyer–Peppas models. The percentage release of the active ATZ in the ST‐g‐CHT/Kao/ATZ, Kao/ATZ and bare ATZ were 9, 57 and 99 within 96 h, respectively. The Korsmeyer–Peppas model better described the release of active ATZ from the ST‐g‐CHT/Kao/ATZ system ( R 2 = 0.999), which delineates a non‐Fickian diffusion mechanism that the release was controlled by diffusion and dissolution.
ISSN:1687-7667
1687-7675
DOI:10.1155/aess/9985874