Raden Khairana Khadra, - (2024) SINTESIS, KARAKTERISASI & KINERJA KOMPOSIT SCHIFF BASE KITOSAN-AKRILAMIDA SEBAGAI MATERIAL ANTISCALANT. S1 thesis, Universitas Pendidikan Indonesia.
Abstract
Kitosan merupakan salah satu zat yang digunakan untuk menghilangkan kesadahan dalam air. Modifikasi kitosan menggunakan benzaldehid dan akrilamida dapat dilakukan untuk meningkatkan kapasitasnya dalam penghilangan kesadahan dalam air. Penelitian ini bertujuan untuk memperoleh informasi mengenai kondisi sintesis dan karakteristik komposit Schiff base kitosan-akrilamida sebagai material antiscalant. Metode sintesis komposit adalah kondensasi yang membentuk ikatan Schiff base dari amina pada kitosan dan gugus aldehid pada benzaldehid. Schiff Base Chitosan Acrylamide yang terbentuk dikarakterisasi menggunakan metode Fourier-transform infrared spectroscopy (FTIR) dan, ¬X-Ray Diffraction (XRD). Pengujian kinerja dari Schiff Base Chitosan Acrylamide sebagai antiscalant menggunakan metode Atomic Absorption Spectrophotometry (AAS) melalui penentuan konsentrasi ion Ca2+ dalam sampel air. Schiff Base Chitosan berhasil disintesis menggunakan metode kondensasi pada komposisi optimum kitosan:benzaldehida:NaOH (2 g: 4,12 mL : 150 mL) dengan kondisi optimum pengeringan menggunakan desikator (28oC) dan %yield mencapai 66,94%. Adapun komposisi optimum sintesis Schiff Base Chitosan Acrylamide diperoleh pada perbandingan Schiff Base Chitosan: Acrylamide (0,5 g : 2 g). Keberhasilan sintesis Schiff Base Chitosan Acrylamide dikonfirmasi dengan kemunculan puncak FTIR untuk C=N stretching (1650-1500 cm-1), -N-H dan -O-H stretching (3700-3200 cm-1), -C=O (Amide I) stretching (1750-1630 cm-1), -C=O (Amide II) stretching (1595-1530 cm-1) dan β-D-configuration (889-871 cm-1). Selain itu, difraktogram sinar X menunjukan penurunan persen %kristalinitas (39% menjadi 30%) dan kemunculan puncak difraksi khas pada komposit 19,03o, 23,85o, dan 27,21o yang mengindikasikan keberhasilan pembentukan komposit. Kinerja Schiff Base Chitosan Acrylamide sebagai antiscalant dalam penghilangan kesadahan dalam air ditunjukan dengan penghilangan ion Ca2+ dalam air hingga 79,41%. Chitosan is one of the substances used to remove hardness from water. Modifying chitosan with benzaldehyde and acrylamide can be done to enhance its capacity in removing water hardness. This study aims to obtain information about the synthesis conditions and characteristics of the Schiff base composite chitosan-acrylamide as an antiscalant material. The synthesis method of the composite involves condensation to form a Schiff base bond from the amine on chitosan and the aldehyde group on benzaldehyde. The formed Schiff Base Chitosan Acrylamide was characterized using Fourier-transform infrared spectroscopy (FTIR) and X-Ray Diffraction (XRD). The performance testing of Schiff Base Chitosan Acrylamide as an antiscalant was conducted using Atomic Absorption Spectrophotometry (AAS) by determining the concentration of Ca²⁺ ions in the water sample. Schiff Base Chitosan was successfully synthesized using the condensation method with the optimal composition of chitosan:benzaldehyde:NaOH (2 g: 4.12 mL: 150 mL) under optimal drying conditions using a desiccator (28°C) with a yield of 66.94%. The optimal synthesis composition of Schiff Base Chitosan Acrylamide was obtained at a ratio of Schiff Base Chitosan: Acrylamide (0.5 g: 2 g). The success of synthesizing Schiff Base Chitosan Acrylamide was confirmed by the appearance of FTIR peaks for C=N stretching (1650-1500 cm⁻¹), -N-H and -O-H stretching (3700-3200 cm⁻¹), -C=O (Amide I) stretching (1750-1630 cm⁻¹), -C=O (Amide II) stretching (1595-1530 cm⁻¹), and β-D-configuration (889-871 cm⁻¹). Additionally, the X-ray diffraction pattern showed a decrease in crystallinity percentage (39% to 30%) and the appearance of characteristic diffraction peaks at 19.03°, 23.85°, and 27.21°, indicating the successful formation of the composite. The performance of Schiff Base Chitosan Acrylamide as an antiscalant in removing water hardness was demonstrated by removing Ca²⁺ ions from water up to 79.41%.
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| Item Type: | Thesis (S1) |
|---|---|
| Additional Information: | https://scholar.google.com/citations?view_op=new_profile&hl=id&authuser=2 ID SINTA Dosen Pembimbing Prof. Fitri Khoerunnisa, M.Si., Ph.D.: 258263 Dr. Hendrawan., M.Si: 5994163 |
| Uncontrolled Keywords: | Kitosan, Schiff Base, Akrilamida, Kesadahan, ion Ca2+ Chitosan, Schiff Base, Acrylamide, Hardness, Ca2+ ion |
| Subjects: | L Education > L Education (General) Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Kimia - S1 > Program Studi Kimia (non kependidikan) |
| Depositing User: | Raden Khairana Khadra |
| Date Deposited: | 09 Sep 2024 01:43 |
| Last Modified: | 09 Sep 2024 01:43 |
| URI: | http://repository.upi.edu/id/eprint/123626 |
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