Pasaribu, Martali Uli (2025) Pengaruh Variasi Massa Biochar Dari Tandan Kosong Kelapa Sawit Terhadap Karakteristik Nanokomposit Biochar Magnetit Sebagai Adsorpsi Rhodamin B. S1 thesis, Universitas Jambi.
![[img]](https://repository.unja.ac.id/style/images/fileicons/text.png) |
Text
ABSTRAK.pdf Download (71kB) |
|
Text
BAB I.pdf Download (100kB) |
|
Text
BAB V.pdf Download (74kB) |
|
Text
COVER.pdf Download (126kB) |
|
Text
DAFTAR PUSTAKA.pdf Download (90kB) |
|
Text
SKRIPSI_FULL_MARTALI ULI PASARIBU_F1C121046-1.pdf Download (5MB) |
|
Text
Lembar Pengesahan Marta.pdf Download (1MB) |
Abstract
RINGKASAN Penelitian ini berhasil mensintesis dan mengkarakterisasi biochar magnetit dari tandan kosong kelapa sawit dan Fe₂O, dari pasir besi Sungai Batang Hari sebagai adsorben Rhodamin B. Biochar diperoleh melalui karbonisasi pada 500 °C selama 2 jam dan aktivasi KOH untuk meningkatkan porositas dan gugus fungsional. Dibanding karbon aktif, biochar memiliki struktur amorf dan luas permukaan sedang, namun lebih ramah lingkungan dan ekonomis. FeO, disintesis secara ramah lingkungan dari pasir besi dengan menggunakan ekstrak kulit nanas sebagai capping agent, yang ditambahkan selama proses presipitasi untuk mengontrol pertumbuhan partikel dan mencegah aglomerasi. Selanjutnya, Fe3O dikompositkan dengan biochar melalui metode hidrotermal. Hasil FTIR menunjukkan adanya interaksi kimia antar komponen, sementara XRD mengonfirmasi kestabilan struktur kristal FeO, meski intensitas menurun akibat pelapisan biochar. Karakterisasi VSM menunjukkan sifat superparamagnetik, dengan nilai Ms menurun seiring peningkatan rasio biochar. Uji adsorpsi Rhodamin B menunjukkan efisiensi tertinggi (85%) pada rasio 2:1 dengan massa adsorben 150-200 mg. Mekanisme adsorpsi melibatkan interaksi elektrostatik, ikatan hidrogen, n-n stacking, dan pertukaran ion, Rasio 3:1 masih efektif, tetapi menunjukkan kecenderungan saturasi dan aglomerasi. Secara keseluruhan, hasil ini menunjukkan potensi besar biochar magnetit sebagai adsorben yang efisien dan berkelanjutan. SUMMARY This study successfully synthesized and characterized magnetic biochar derived from oil palm empty fruit bunches and Fe₂O, obtained from iron sand of the Batang Hari River as an adsorbent for Rhodamine B. The biochar was produced through carbonization at 500 °C for 2 hours and activated using KOH to enhance. porosity and functional groups. Compared to activated carbon, the biochar exhibits an amorphous structure and moderate surface area, while offering greater environmental and economic advantages. FeO, was synthesized via a green synthesis approach using iron sand, with pineapple peel extract added during the precipitation process as capping agent to stabilize particle growth and prevent agglomeration. The resulting FeO, was then composited with biochar using a hydrothermal method. FTIR analysis revealed chemical interactions between components, while XRD confirmed the crystalline structure of FeO, remained stable despite reduced intensity due to biochar coating. VSM analysis showed superparamagnetic properties, with saturation magnetization (Ms) decreasing as the biochar ratio increased. Adsorption tests for Rhodamine B indicated the highest efficiency (85%) at a 2:1 ratio with an adsorbent mass of 150-200 mg. The adsorption mechanism involved electrostatic interactions, hydrogen bonding, п-п stacking, and ion exchange. Although the 3:1 ratio remained effective, it exhibited signs of saturation and particle agglomeration. Overall, the results demonstrate that magnetic biochar has strong potential as an efficient and sustainable adsorbent.
| Type: | Thesis (S1) |
|---|---|
| Subjects: | L Education > L Education (General) |
| Depositing User: | MARTALI ULI PASARIBU |
| Date Deposited: | 16 Jul 2025 08:05 |
| Last Modified: | 16 Jul 2025 08:05 |
| URI: | https://repository.unja.ac.id/id/eprint/84602 |
Actions (login required)
 |
View Item |
