Departement of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Bulaksumur, Yogyakarta 55281, Indonesia
Email: syahriani@mail.ugm.ac.id (S.); brusdi_mipa@ugm.ac.id (B.R.); indriana@ugm.ac.id (I.K.)
*Corresponding author
Manuscript received April 4, 2024; revised May 7, 2024; accepted June 11, 2024; published October 24, 2024
Abstract—Iron (Fe) is an important micronutrient in plants, aiding in photosynthesis and chlorophyll production. Insufficient iron leads to pale leaves and slow plant development. This study successfully produced a bioplastic with slow-release iron micronutrients for plants. The composites were synthesized using a solvent casting method utilizing Carboxymethyl Cellulose (CMC) as a plastic matrix, tannic acid as a crosslinker, glycerol as a plasticizer, and Fe3+ as the micronutrient. Mechanical and water resistance tests were performed, along with X-Ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) analysis for chemical properties. Atomic Absorption Spectroscopy (AAS) was used to monitor Fe release. The optimal composition of bioplastic comprised 4.5% CMC, 3% tannic acid, 0.7% Fe3+, and 3 mL glycerol, exhibiting a tensile strength of 4.92 MPa and 31.67% elongation. This bioplastic composite holds promise as an eco-friendly material that can slow-release Fe micronutrients when discarded, serving as a plant fertilizer.
Keywords—bioplastic, fertilizer, iron micronutrient, slow release
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Cite: Syahriani, Bambang Rusdiarso, and Indriana Kartini, "Bioplastic Composite of Carboxymethyl Cellulose/Tannic Acid/Glycerol/Iron for Slow-Release Iron Micronutrient Fertilizer," International Journal of Chemical Engineering and Applications vol. 15, no. 2, pp. 55-59, 2024.
