Synthesis and Characterization of Silica-Potassium-Phosphate Solid Fertilizer Derived from Sugarcane Bagasse Ash
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This research aimed to synthesise and characterise Silica-Potassium-Phosphate (Si-K-P) solid fertiliser using sugarcane bagasse ash as a silica source. The process involved silica extraction using potassium hydroxide (KOH) followed by polymerization with Phosphoric Acid () under varying conditions of pH (5, 6, 7, 8, 9) and alkali silica concentrations (16.67%, 20%, 25%, 33.3%, and 50%). Characterisation methods included X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The results revealed that the raw sugarcane bagasse ash contained 69.2% silica (). The synthesis conditions significantly influenced the final nutrient composition; the highest silica content of 22.8% was achieved at pH 7, the maximum potassium content of 59.9% at pH 9, and the highest phosphate content of 37.7% at pH 5. FTIR analysis confirmed the formation of siloxane (), while SEM imaging showed a porous agglomerated morphology. This study demonstrates that sugarcane bagasse ash can be effectively converted into a value-added multinutrient fertilizer.
Contribution to Sustainable Development Goals (SDGs):
SDG 2: Zero Hunger
SDG 12: Responsible Consumption and Production
SDG 9: Industry, Innovation and Infrastructure
SDG 13: Climate Action
[1] A. H. Firmansyah, W. Zamrudy, and E. Naryono, “STUDI KELAYAKAN PEMANFAATAN LIMBAH (BLOTONG, AMPAS TEBU, TETES) SEBAGAI BIOBRIKET,” DISTILAT: Jurnal Teknologi Separasi, vol. 9, no. 3, pp. 303–317, Sep. 2023, doi: 10.33795/distilat.v9i3.3798.
[2] A. E. Lianasari, Marthinus, and Angrumpaka, “Alternatif Pemanfaatan Limbah Padat Pabrik Gula Madukismo Dalam Teknologi Beton,” Jurnal Atma Inovasia (JAI), vol. 2, no. 3, May 2022.
[3] M. Muttaqin and N. Saidah Amalia, “Pertumbuhan, Produksi, dan Kualitas Buah Melon dengan Pemberian Pupuk Silika (Growth, Yield, and Fruit of Melon Quality Using Silica Fertilizer),” Jurnal Ilmu Pertanian Indonesia (JIPI), Oktober, vol. 24, no. 4, pp. 366–374, 2019, doi: 10.18343/jipi.24.4.366.
[4] A. Mahmudi, A. Rizky Pertamasari, S. Muljani, J. Raya Rungkut Madya, and G. Anyar, “MORFOLOGI KOMPOSIT SI-K-N GEL DARI KALIUM SILIKAT DAN UREA DENGAN PRESIPITATOR,” 2021. [Online]. Available: www.chempro.upnjatim.ac.id
[5] A. S. Wibowo, S. D. Septianti, and L. U. Widodo, “Pembuatan Pupuk Cair Kalium Silika Berbahan Baku Abu Daun Bambu,” Journal of Chemical and Process Engineering, vol. 01, no. 01, Mar. 2020.
[6] B. Wahyudi and S. Muljani, “PUPUK MULTINUTRIENT BERBASIS SILIKA DARI LIMBAH GEOTHERMAL SLUDGE DENGAN PROSES ASIDIFIKASI SILICA-BASED MULTINUTRIENT FERTILIZER FROM GEOTHERMAL SLUDGE USING ACIDIFICATION PROCCESS.”
[7] Mukhriani, “EKSTRAKSI, PEMISAHAN SENYAWA, DAN IDENTIFIKASI SENYAWA AKTIF,” vol. 7, no. 2, 2014.
[8] D. R. Mujiyanti, D. Ariyani, and N. Paujiah, “KAJIAN VARIASI KONSENTRASI NaOH DALAM EKSTRAKSI SILIKA DARI LIMBAH SEKAM PADI BANJAR JENIS ‘PANDAK,’” Jurnal Sains dan Terapan Kimia, vol. 15, no. 2, p. 143, Aug. 2021, doi: 10.20527/jstk.v15i2.10373.
[9] G. F. Agung M, M. R. Hanafie Sy, and P. Mardina, “EKSTRAKSI SILIKA DARI ABU SEKAM PADI DENGAN PELARUT KOH,” Konversi, vol. 2, no. 1, p. 28, Apr. 2013, doi: 10.20527/k.v2i1.125.
[10] S. Sulastri and Susila Kristianingrum, “BERBAGAI MACAM SENYAWA SILIKA: SINTESIS, KARAKTERISASI DAN PEMANFAATAN,” Jurusan Pendidikan Kimia, FMIPA, Universitas Negeri Yogyakarta, vol. 4, no. 3, May 2010.
[11] F. Sulaiman, “Pemanfataan Abu Ampas Tebu dan Polimer Alam Lateks sebagai Bahan Subtitusi Pembuatan Beton Polimer Ramah Lingkungan,” vol. 5, no. 2, Oct. 2019.
[12] J. Ikhsan, S. Sulastri, and E. Priyambodo, “PENGARUH pH PADA ADSORPSI KATION UNSUR HARA Ca 2+ DAN K + OLEH SILIKA DARI LUMPUR LAPINDO (THE EFFECT OF pH ON THE ADSORPTION OF MICRONUTRIENT CATIONS OF Ca 2+ AND K + BY SILICA FROM LAPINDO MUD).”
[13] I. Nurhidayati et al., “PENGARUH pH, WAKTU KONTAK, DAN KECEPATAN PENGADUKAN PADA ADSORPSI FOSFAT OLEH SEDIMEN.”
[14] D. Dhaneswara, J. F. Fatriansyah, F. W. Situmorang, and A. N. Haqoh, “Synthesis of Amorphous Silica from Rice Husk Ash: Comparing HCl and CH3COOH Acidification Methods and Various Alkaline Concentrations,” International Journal of Technology, vol. 11, no. 1, pp. 200–208, Jan. 2020, doi: 10.14716/ijtech.v11i1.3335.
[15] R. Bhujel, R. Maharjan, N. A. Kim, and S. H. Jeong, “Practical quality attributes of polymeric microparticles with current understanding and future perspectives,” Aug. 01, 2021, Editions de Sante. doi: 10.1016/j.jddst.2021.102608.
[16] N. Sundari, Y. A. Nurrahman, and S. I. Nurdiansyah, “Analysis of FTIR from Liquid Extract of Sargassum polycystum and Padina australis from Lemukutan Waters,” Jurnal Laut Khatulistiwa, vol. 6, no. 3, p. 127, Oct. 2023, doi: 10.26418/lkuntan.v6i3.64636.
[17] A. B. D. Nandiyanto, R. Oktiani, and R. Ragadhita, “How to read and interpret ftir spectroscope of organic material,” Indonesian Journal of Science and Technology, vol. 4, no. 1, pp. 97–118, 2019, doi: 10.17509/ijost.v4i1.15806.
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