Haikal, Muhammad Rafi Aryana (2025) Analisis Pengaruh Penambahan Massa Magnetic Biochar Dari Limbah Ampas Kopi Terhadap Sifat Adsorpsi Komposit CuFe2O4/Magnetic Biochar Sebagai Adsorben Logam Berat Pb2+ Dan Cd2+. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Saat ini, kehadiran logam berat dalam ekosistem air menjadi perhatian global karena limbah logam berat ini dapat menimbulkan ancaman serius terhadap ekosistem dan kesehatan. Dua logam berat yang sering menjadi masalah adalah Pb2+ dan Cd2+, yang dapat menyebabkan keracunan jangka panjang dan kerusakan organ. Salah satu metode yang efektif dalam meremediasi air limbah adalah metode adsorpsi dengan menggunakan biochar. Biochar bisa diproduksi dari limbah biomassa yang kaya akan kandungan karbon, salah satunya adalah ampas kopi. Dari beberapa modifikasi biochar, magnetic biochar yang telah dimagnetisasi oleh Fe telah terbukti unggul dalam menghilangkan berbagai kontaminan dan memfasilitasi pemisahan biochar dengan mudah menggunakan medan magnet eksternal setelah proses adsorpsi. Pada penelitian ini modifikasi yang digunakan untuk meningkatkan efisiensi adalah dengan menambahkan CuFe2O4, yang dapat meningkatkan jumlah gugus fungsi pada permukaan biochar. Metode penelitian ini merupakan eksperimen yang terdiri dari sintesis magnetic biochar, sintesis komposit CuFe2O4/Magnetic biochar dengan variasi penambahan massa magnetic biochar 2, 3, dan 4 gram yang bertujuan untuk menganalisis pengaruh variasi penambahan massa magnetic biochar terhadap struktur dan morfologi komposit CuFe2O4/Magnetic biochar serta sifat adsorpsi terhadap logam berat Pb2+ dan Cd2+. Kemudian dilakukan pengujian karakterisasi material meliputi uji kadar karbon fix, XRD, FTIR, SEM/EDX dan BET. Kemudian untuk menganalisis kemampuan adsorpsi ion Pb2+ dan Cd2+ dilakukan pengujian AAS. Pengujian karakterisasi menunjukkan bahwa komposit CuFe2O4/Magnetic biochar berhasil disintesis dengan dibuktikan oleh hasil pengujian XRD dengan munculnya peak dari CuFe2O4. Pengujian FTIR berhasil mengidentifikasi adanya gugus fungsi untuk material CuFe2O4 yang diwakili oleh unsur-unsur H, C, O, Fe, dan Cu. Pada pengujian BET, Magnetic biochar yang disintesis memiliki luas permukaan aktif 382,564 m2/g dengan ukuran pori sebesar 1,746 nm. Pengujian SEM/EDX menunjukkan keberadaan unsur Cu dan Fe, dapat disimpulkan pemuatan CuFe2O4 berhasil. Komposit CuFe2O4/Magnetic biochar dengan penambahan massa magnetic biochar 2 gram berhasil mengadsorpsi limbah logam berat Pb2+ dan Cd2+ selama 240 menit dengan persen teradsorpsi tertinggi sebesar yaitu 73,2% dan 52,129%.
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Currently, the presence of heavy metals in aquatic ecosystems has become a global concern because this heavy metal waste can pose a serious threat to ecosystems and health. Two heavy metals that often pose problems are Pb2+ and Cd2+, which can cause long-term poisoning and organ damage. One of the effective methods for remediating wastewater is the adsorption method using biochar. Biochar can be produced from biomass waste that is rich in carbon content, one of which is coffee grounds. Among several modifications of biochar, magnetic biochar that has been magnetized by Fe has proven to be superior in removing various contaminants and facilitating the separation of biochar easily using an external magnetic field after the adsorption process. In this study, the modification used to enhance efficiency is the addition of CuFe2O4, which can increase the number of functional groups on the surface of biochar. This research method is an experiment consisting of the synthesis of magnetic biochar, the synthesis of CuFe2O4/Magnetic biochar composites with variations in the addition of magnetic biochar mass of 2, 3, and 4 grams, aimed at analyzing the effect of variations in the addition of magnetic biochar mass on the structure and morphology of CuFe2O4/Magnetic biochar composites as well as the adsorption properties towards heavy metals Pb2+ and Cd2+. Then, material characterization tests were conducted, including fixed carbon content test, XRD, FTIR, SEM/EDX, and BET. Then, to analyze the adsorption capacity of Pb2+ and Cd2+ ions, AAS testing was conducted. Characterization tests show that the CuFe2O4/Magnetic biochar composite was successfully synthesized, as evidenced by XRD test results showing peaks of CuFe2O4. FTIR testing successfully identified the presence of functional groups in the CuFe2O4 material, represented by the elements H, C, O, Fe, and Cu. In the BET test, the synthesized magnetic biochar has an active surface area of 382.564 m²/g with a pore size of 1,746 nm. SEM/EDX testing shows the presence of Cu and Fe elements, it can be concluded that the loading of CuFe2O4 was successful. The CuFe2O4/Magnetic biochar composite with the addition of 2 grams of magnetic biochar successfully adsorbed heavy metal waste Pb2+ and Cd2+ over 240 minutes, with the highest adsorption percentages being 73.2% and 52.129%, respectively.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Adsorpsi, Ampas Kopi, CuFe2O4, Cd2+, Magnetic Biochar, Pb2+ Adsorption, Spent Coffee Ground, CuFe2O4, Cd2+, Magnetic Biochar, Pb2+ |
| Subjects: | Q Science > QD Chemistry > QD547 Flocculation, precipitation, adsorption, etc. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Rafi Aryana Haikal |
| Date Deposited: | 26 Jan 2025 06:44 |
| Last Modified: | 26 Jan 2025 06:44 |
| URI: | http://repository.its.ac.id/id/eprint/116883 |
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