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All Journal Jurnal Penelitian Kesehatan Suara Forikes Indonesian Journal of Pure and Applied Chemistry Pharma Xplore : Jurnal Sains dan Ilmu Farmasi Lumbung Farmasi : Jurnal Ilmu Kefarmasian Jurnal Bio-Geo Material Dan Energi Prosiding Seminar Nasional Unimus Indonesian Journal of Science and Pharmacy Jurnal Bakti Nusantara E-Amal: Jurnal Pengabdian Kepada Masyarakat Sasambo: Jurnal Abdimas (Journal of Community Service) Jurnal Kesehatan Qamarul Huda Sustainable in Energy Science and Technology
Sulwiyatul K Sani
Industrial Chemical Engineering Technology, Mechanical Engineering, Politeknik Negeri Medan, Medan, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Modified Zeolite-Based Composite as Urea Slow-Release Fertilizer – A Mini Review Siti Mahmudha; Taranipa Marfitania; Muhammad Idris; Sulwiyatul Kamariyah Sani; Pina Budiarti Pratiwi; Eko Pujiyulianto
Sustainable in Energy Science and Technology Vol. 1 No. 1 (2025): Sustainable in Energy and Science Technology
Publisher : Politeknik Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51510/siest.v1i1.2579

Abstract

Urea is the most commonly used nitrogen fertilizer in agriculture due to its high nitrogen content and low cost. However, its efficiency is often below 50% because of nitrogen losses through leaching, volatilization, and surface runoff. To reduce these losses and improve fertilizer efficiency, slow-release fertilizers (SRFs) using modified zeolite-based composites have been developed. Zeolite is a porous aluminosilicate mineral with excellent ion exchange and adsorption properties, making it a good carrier for urea. However, natural zeolite has limitations, such as impurities and low surface area, which can be improved through modification techniques like acid–base treatments (dealumination and desilication), surfactant modification, and combination with organic or inorganic materials. These modifications improve pore size, surface area, and nutrient-holding capacity, allowing for a slower and more controlled release of nitrogen. This mini review discusses recent studies on the preparation, characterization, and performance of modified zeolite composites for urea delivery, showing their potential to reduce environmental impact and increase nutrient use efficiency in agriculture.
INTERAKSI SENYAWA POTENSIAL TANDAN KOSONG KELAPA SAWIT (TKKS) DENGAN ION LOGAM Pb²⁺: KAJIAN TEORITIK KOMPUTASI Mahmudha, Siti; Nugraha, Fajar; Idris, Muhammad; Pangestika, Inten; Sani, Sulwiyatul Kamariyah
Indonesian Journal of Pure and Applied Chemistry Vol. 9 No. 1 (2026)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v9i1.100734

Abstract

This study investigates the interactions between potential bioactive compounds in oil palm empty fruit bunches (OPEFB) and Pb²⁺ ions using computational methods. The identification of functional compounds was performed using Fourier Transform Infrared spectroscopy, which confirmed the presence of lignocellulosic components, predominantly lignin and cellulose, as the major constituents of OPEFB biomass. Molecular modeling was then performed using the semi-empirical PM3 method to obtain optimized structural parameters, including bond lengths and bond angles, both before and after interaction with Pb²⁺ ions. The calculated interaction energies for lignocellulose, cellulose monomer, and cellulose dimer complexes with Pb²⁺ were –56.22, –69.90, and –52.09 kcal/mol, respectively. The negative interaction energy values indicate spontaneous complex formation and thermodynamic stability. These results demonstrate that the chemical constituents of OPEFB exhibit strong potential as effective biosorbents for Pb²⁺ ions through molecular-level interactions.
Structural and Crystallographic Evolution of Nano-POFA using XRD-Based Crystallite Analysis Masriah, Imas; Lestari, Devi; Sani, Sulwiyatul Kamariyah; Pangestika, Inten; Miswanda, Dikki
Jurnal Bio-Geo Material Dan Energi Vol. 6 No. 2 (2026): Journal of Bio-Geo Material and Energy (BiGME), April 2026
Publisher : PUI BiGME Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/j-bigme.v6i2.49631

Abstract

Palm oil fuel ash (POFA) is one of the main by-products of the palm oil industry, predominantly composed of silica (SiO2) and various other metal oxides. Nano-POFA (P1) was synthesized using a top-down approach via high-energy ball milling process at a rotational speed of 1300 rpm for 1 hour using 4 mm-diameter milling balls. The X-ray diffraction patterns revealed that the dominant crystalline phases were Quartz (SiO2) and Mullite (Al6Si2O13), accompanied by minor phases such as Cristobalite (SiO2), Hematit (Fe2O3), Calcite (CaCO3), CaO, and Al2O3. The XRD analysis results of samples P0 (without ball milling) and P1 (1 hour of ball milling) revealed a significant decrease in peak intensity and peak broadening after 1 hour of the milling process. This phenomenon indicates partial amorphization and crystal fragmentation. The average crystallite size decreased from 92.14 nm in sample P0 to 47.52 nm in sample P1. These results indicate that the high-energy ball milling process induces lattice distortion, structural disorder, and amorphization within the Si-O framework of the POFA. The Williamson-Hall analysis indicated an increase in microstrain from ԑ=3.38 x 10-3 to ԑ=1.227 x 10-2. The structural transformations increase surface defect density and reactivity, signifying nano-POFA’s potential as material heterogenous catalyst for related chemical processes
Co-Authors Atri Sri Ulandari Aulia Fitri, Aulia Baiq Erna Devi Lestari Dikki Miswanda Dinda Sari Utami Eka Susilawati Eko Pujiyulianto Eva Irawati Fajar Nugraha Fitri, Raissa Gabena Indrayani Dalimunthe Haris Munandar Nasution Imas Masriah Lalu Hersika Asmawariza Lalu Muhammad Sadam Husen Lalu Sulaiman Lalu Sulaiman Lalu, Sulaiman Lubis, Minda Sari Menap Muhammad Idris Muhammad Idris Muslim Tasim Pangestika, Inten Pina Budiarti Pratiwi Pratiwi, Pina Budiarti Robi Febrian Sapitri, Shally Sastrawan, Sastrawan Siti Mahmudha Sulaiman Lalu Taranipa Marfitania Tasim, Muslim Vera Yulandasari Yayan Hardiansah Yuniarti, Rafita Zulmai Rani