The Preparation and Characterization of Silica Composite Adsorbent from Palm Oil Boiler Ash and Chitosan
DOI:
https://doi.org/10.24114/ijcst.v9i2.72574Keywords:
Keywords: Adsorbent, Silica-chitosan Composite, Sol-GelAbstract
FTIR characterization of silica confirmed the presence of hydroxyl groups (-OH) at wave number 3386 cm-1. Wave number 1059 cm-1 Si-O-Si group, 783 cm-1, 984 cm-1 symmetric stretching vibration of Si-O-Si group, wave 452 cm-1 Siloxane group, in silica chitosan composite wide absorption band at 3356 cm-1 (-OH) group from silanol group (Si-OH) which is a functional group derived from silica as well as (-OH) and (-NH2) groups, 1628 cm-1 amide group (-NH) wave 1421 cm-1 related to symmetric bending vibration of chitosan oligosaccharide chain namely –CH2 and –CH3 groups which can be influenced by the presence of silica matrix 1079 cm-1 Si-O-Si group, wave 593 cm-1 and 488 cm-1 bending vibration of Si-O-Si and Si-O. The optimum result of Pb2+ adsorption using silica chitosan composite adsorbent was 94.70% with an absorption capacity of 1.2467 mg/g. With a concentration of 5.266 ppm it became 0.279 ppm.
References
1. G. N. Rupilu and J. B. Manuhutu, “KARAKTERISASI ABU KERAK BOILER DARI PT NUSA INA GROUP UNTUK ADSORPSI LOGAM Pb. (2024); vol. 14, no. 1, pp. 47–59.
2. I. L. D. Wijayanti and F. W. Mahatmanti, “Synthesis of Chitosan/Activated Carbon Composite Beads as an Adsorbent of Pb(II) and Cu(II) ions in Aqueous Solution: A Review,” Indones. J. Chem. Sci; (2022)vol. 11, no. 2, pp. 190–197.
3. R. Rosema, E. Supriyantini, and S. Sedjati, “Pemanfaatan Kitosan untuk Menurunkan Kadar Logam Pb dalam Perairan yang Tercemar Minyak Bumi,” Bul. Oseanografi Mar. (2021); vol. 10, no. 1, pp. 61–66.
4. H. S. Prehatini and A. Amaria, “PENGARUH PENAMBAHAN KITOSAN PADA SILIKA ABU SEKAM PADI SEBAGAI ADSORBEN KITOSAN-SILIKA UNTUK MENURUNKAN ION Pb(II),” Unesa J. Chem.. (2023); vol. 12, no. 2, pp. 64–72.
5. N. Bukit, E. M. Ginting, E. Frida, and B. F. Bukit, “Preparation of Environmentally Friendly Adsorbent Using Oil Palm Boiler Ash, Bentonite and Titanium Dioxide Nanocomposite Materials,” J. Ecol. Eng. (2022); vol. 23, no. 12, pp. 75–82.
6 N. Nurmalita, S. N. Madjid, A. Setiawan, R. Idroes, and Z. Jalil, “Characteristics of Silica Powder Extracted from Fly Ash of Coal Fired Power Plant – Effect of Heat Treatment Process,” J. Ecol. Eng. (2023); vol. 24, no. 9, pp. 282–292.
7. R. Karimullah, R. Elvia, and H. Amir, “Penentuan Parameter Adsorpsi Silika Sintetik Dari Cangkang Kelapa Sawit Terhadap Kandungan Ammonium Pada Limbah Cair Tahu,” Alotrop. (2018); vol. 2, no. 1, pp. 66–71.
8. K. Ramadani, “Sintesis dan Karakterisasi Silika Gel dari Limbah Kaca untuk Menurunkan Kesadahan Air,” Saintifik. (2018); vol. 4, no. 2, pp. 179–185.
9. M. I. Putrinesia, Nurlina, and W. Rahmalia, “Sintesis Dan Karakterisasi Komposit Polianilin / Silika Gel,” J. Kim. Khatulistiwa. (2017); vol. 6, no. 2, pp. 89–95.
10. Yani’ Qoriati and Akhmad Al Bari, “Sintesis Silika Dari Limbah Botol Kaca Bahan Kimia Menggunakan Metode Sol Gel,” Alotrop. (2025); vol. 9, no. 1, pp. 1–8.
11. L. Handayani, F. Syahputra, and Y. Astuti, “Utilization and Characterization of Oyster Shell as Chitosan and Nanochitosan,” J. Kim. Sains dan Apl. (2018); vol. 21, no. 4, pp. 224–231.
12. S. Siswanti, A. H. Oktafiana, and Y. Putri, “Adsorpsi Zat Warna Remazol Brilliant Blue R Pada Limbah Industri Batik Menggunakan Adsorben dari Mahkota Buah Nanas,” Eksergi. (2023); vol. 21, no. 1, p. 9.
