Effect of Urea Variation Concentration on Slow Release Fertilizer (SRF) Based Chitosan/NaTPP/Calcium
DOI:
10.29303/jpm.v19i5.7401Published:
2024-09-30Issue:
Vol. 19 No. 5 (2024): September 2024Keywords:
Chitosan; Fertilizer; NaTPP; UreaArticles
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Abstract
Environmental pollution due to urea can negatively impact the environment and its surroundings. Efforts to prevent environmental pollution include encapsulating urea made of chitosan/NaTPP/Ca, which aims to determine its physical and chemical properties. This study crosslinks chitosan 1.66%, with NaTPP 3.33%, CaO, with variations in the addition of urea concentrations of 0.05%, 0.1%, 0.15%, 0.2%, and 0.25%. The results of FTIR characterization showed that there were functional groups OH-, C-H, Ca-O, NH, and P=O. The membrane weight yield ranges from 0.14-0.16 grams, while the average membrane thickness is 0.15-0.35 mm. The water absorption test is 1.86-2.64%, and the membrane porosity result is 0.91-2,25%. This shows that the membrane with a base material of 1.66% chitosan and 3.33% NaTPP is the best.
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Author Biographies
Alvia Rachma Wijayanti, Department of Chemistry, Faculty of Mathematics and Natural Science, State University of Surabaya
Sari Edi Cahyaningrum, Department of Chemistry, Faculty of Mathematics and Natural Science, State University of Surabaya
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Copyright (c) 2024 Alvia Rachma Wijayanti, Sari Edi Cahyaningrum
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