Substitusi Ligan Fungsional Amino (-Nh2) Dan Penambahan Alumina Pada Sintesis Material MOF Zr-BDC (Uio-66) Secara Solvotermal

Rachmawati, Yulia (2015) Substitusi Ligan Fungsional Amino (-Nh2) Dan Penambahan Alumina Pada Sintesis Material MOF Zr-BDC (Uio-66) Secara Solvotermal. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Material MOF Zr-BDC-NH2 dan kedua variasi Al-Zr-BDC-NH2 telah berhasil disintesis dan diketahui aktivitas katalitiknya terhadap konversi FFA pada reaksi esterifikasi Palm Fatty Acid Distillate (PFAD). Material Zr-BDC-NH2 disintesis secara solvotermal menggunakan prekursor zirkonium tetraklorida (ZrCl₄) dan 2-amino-1,4-benzendikarboksilat (2-amino BDC) dalam pelarut N-N’-dimetilformamida (DMF) pada suhu 140 oC selama 6 jam. Sementara itu, Al-Zr-BDC-NH2 disintesis secara solvotermal pada suhu 100 oC selama 48 jam, dengan variasi penambahan Zr/Al 0,5 dan 0,3. Hasil karakterisasi menggunakan XRD, FTIR, dan SEM masing-masing menunjukkan bahwa terjadi penurunan kristalinitas material, sedikit pergeseran bilangan gelombang pada ikatan Zr-O, dan penurunan ukuran kristal seiring dengan penambahan Al pada sintesis. Hasil SEM-EDX menunjukkan bahwa terdapat Al yang terkoordinasi dalam kerangka maupun yang menempel di luar kerangka MOF. Konversi FFA dihitung berdasarkan hasil titrasi asam basa dengan NaOH 0,1 N yang telah distandarisasi. Aktivitas katalitik maerial semakin besar seiring dengan penambahan Al pada sintesis dengan urutan konversi FFA : Zr-BDC-NH2 (60,06%) < Al-Zr-BDC-NH2 0,5 (71,12%) < Al-Zr-BDC-NH2 0,3 (81,32%) ====================================================================================================== MOF Zr-BDC-NH2 and both variation of Al-Zr-BDC-NH2 materials have been successfully synthesized and known catalytic activity for FFA conversion of esterification Palm Fatty Acid Distillate (PFAD). Zr-BDC-NH2 material synthesized by solvothermal using precursor zirkonium tetrachloride (ZrCl₄) and 2-amino-1,4-benzenedicarboxylate (2-amino BDC) in solvent N-N’-dimethylformamide (DMF) at temperature 140 oC for 6 hours. Meanwhile, Al-Zr-BDC-NH2 synthesized by solvothermal at temperature 100 oC for 48 hours, with variation of addition Zr/Al 0,5 and 0,3. The characterization result using XRD, FTIR, and SEM showed the decreasing of material crystallinity, occurring of slight shift in wavenumber of Zr-O bond, and decreasing of crystal size, respectively, along with the addition of Al in synthesis. The result of SEM-EDX showed that Al assemble together to form big chunk and attached to the MOF framework. The FFA conversion calculated based on acid base titration with NaOH 0,1 N which has been standardized. Catalytic activity of materials for FFA conversion increase along with the addition of Al in synthesis, with following order : Zr-BDC-NH2 (60,06%) < Al-Zr-BDC-NH2 0,5 (71,12%) < Al-Zr-BDC-NH2 0,3 (81,32%)

Item Type: Thesis (Undergraduate)
Additional Information: RSKi 541.395 Rac s
Uncontrolled Keywords: substitusi ligan fungsional, penambahan logam, Zr-BDC-NH2, Al-Zr-BDC-NH2, solvotermal
Subjects: Q Science > QD Chemistry > QD501 Catalysis. Catalysts.
Divisions: Faculty of Mathematics and Science > Chemistry > (S1) Undergraduate Theses
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 21 Mar 2018 04:04
Last Modified: 24 Aug 2018 06:29
URI: http://repository.its.ac.id/id/eprint/51595

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