Synthesis and characterization of chitosan-modified membrane for urea slow-release fertilizers

Cahyaningrum, Sari Edi and Lusiana, Retno Ariadi and Natsir, Taufik Abdillah and Muhaimin, Fitriari Izzatunnisa and Wardana, Andika Pramudya and Purnamasari, Amalia Putri and Misran, Misni Bin (2024) Synthesis and characterization of chitosan-modified membrane for urea slow-release fertilizers. Heliyon, 10 (15): e34981. ISSN 24058440

[thumbnail of Urea is a fertilizer widely used by farmers, especially vegetable farmers, due to its high nitrogen content, around 46 %. However, plants only use a small amount of nitrogen, a maximum of 35 %, while the remaining nitrogen is wasted and released into the] Text (Urea is a fertilizer widely used by farmers, especially vegetable farmers, due to its high nitrogen content, around 46 %. However, plants only use a small amount of nitrogen, a maximum of 35 %, while the remaining nitrogen is wasted and released into the)
Synthesis and characterization of chitosan-modified membrane for.pdf - Published Version
Restricted to Registered users only

Download (8MB) | Request a copy

Abstract

Background: Urea is a fertilizer widely used by farmers, especially vegetable farmers, due to its high nitrogen content, around 46 . However, plants only use a small amount of nitrogen, a maximum of 35 , while the remaining nitrogen is wasted and released into the environment. Undeniably, it causes increases production costs and environmental problems. A slow-release urea fertilizer (SRF) has been formulated to resolve these issues. Methods: In this study, the membrane was made of chitosan with several crosslinking agents such as Tripolyphosphate (TPP). In addition, calcium ion bonds are expected to increase the interaction with urea fertilizer through the encapsulation process. The results: Our data showed that urea slow-release fertilizer (SRF) with the chitosan/TPP/Ca membrane, was successfully synthesized. This membrane has the characteristics of a thin white layer that is transparent. The physical and chemical characterization of SRF membranes with various coating membrane variations showed that the chitosan/TPP/Ca-urea membrane has Young's modulus of 7.75–22.05 N/mm2, swelling of 109.52–132.62 and porosity of 0.756–1.06 . Functional group analysis shows that several spectral changes indicate the presence of crosslinking process between the chitosan functional groups and TPP. The urea release results show that the membrane is released through a diffusion mechanism. Furthermore, SEM results show that these membranes have pores with various shapes and sizes. Conclusion: Based on the result, it can be concluded that chitosan membrane modification with the addition of TPP and calcium oxide provides improved membrane characteristic cs including degree of development, hydrophobicity, membrane stress, and nitrogen release on the membrane. This membrane shows is indicating suitability as a slow-release fertilizer. © 2024 The Authors

Item Type: Article
Additional Information: Cited by: 0; All Open Access, Gold Open Access
Uncontrolled Keywords: Chitosan modified; Membrane; Slow-release fertilizer; Urea
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Mathematics and Natural Sciences > Chemistry Department
Depositing User: Yulistiarini Kumaraningrum KUMARANINGRUM
Date Deposited: 13 Dec 2024 05:18
Last Modified: 13 Dec 2024 05:18
URI: https://ir.lib.ugm.ac.id/id/eprint/10658

Actions (login required)

View Item
View Item