Fabrikasi Komposit MIL-125(Ti)/MCM-41/ZIF-8 Menggunakan MCM-41 Dari Abu Layang Sebagai Fotokatalis Untuk Degradasi Metilen Biru

Saskiana, Nesha (2025) Fabrikasi Komposit MIL-125(Ti)/MCM-41/ZIF-8 Menggunakan MCM-41 Dari Abu Layang Sebagai Fotokatalis Untuk Degradasi Metilen Biru. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini, MIL-125(Ti), ZIF-8, MCM-41, dan komposit MIL 125(Ti)/MCM 41/ZIF-8 dengan variasi penambahan MIL-125(Ti) sebanyak 5%, 10%, 20% telah berhasil disintesis. MCM-41 dari abu layang disintesis melalui metode alkali fusi dan hidotermal. Sintesis komposit MIL-125(Ti)/MCM-41/ZIF-8 dilakukan dengan penambahan MCM-41 ke dalam prekursor logam Zn sebelum direaksikan dengan ligan 2 metilimidazol, kemudian dilakukan penambahan MIL-125(Ti) ke dalam MCM-41/ZIF-8 dengan metode impregnasi. Keberhasilan sintesis didukung dengan difraktogram XRD, spektra FTIR, dan hasil SEM-EDX yang sesuai dengan penelitian sebelumnya. Material komposit kemudian digunakan sebagai fotokatalis untuk degradasi pewarna metilen biru. Hasil uji adsorpsi menunjukkan waktu kontak optimum tercapai pada 50 menit untuk material MCM-41, MCM-41/ZIF-8, 10MMZ, dan 20MMZ, sedangkan untuk material MIL-125(Ti), ZIF-8, dan 5MMZ, waktu kontak optimum tercapai pada 60 menit. Proses adsorpsi MB pada setiap material mengikuti reaksi kinetika orde dua semu, yang berarti proses adsorpsi terjadi secara kemisorpsi. Semua material komposit mengikuti model isoterm Langmuir yang menunjukkan adsorpsi monolayer. Pada uji fotokatalitik, MIL-125(Ti), MCM-41, ZIF-8, MCM-41/ZIF-8, 5MMZ, 10MMZ dan 20MMZ mampu mendegradasi pewarna MB dengan persentase removal masing-masing sebesar 97,07; 43,87; 34,80; 25,31; 32,66; 35,55; dan 48,58% setelah 120 menit iradiasi. Adanya penambahan MCM-41 pada ZIF-8 dapat menutup sebagian sisi aktif ZIF-8 sehingga menurunkan kinerja ZIF-8 sebagai fotokatalis dalam mendegradasi pewarna MB. Penambahan MIL-125(Ti) pada MCM-41/ZIF-8 mampu meningkatkan aktivitas fotokatalitik komposit karena MIL-125(Ti) menyediakan lebih banyak situs aktif
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In this study, MIL-125(Ti), ZIF-8, MCM-41, and MIL-125(Ti)/MCM-41/ZIF-8 composites with variations of MIL-125(Ti) addition at 5%, 10%, 20% were successfully synthesized. MCM-41 from fly ash was synthesized through alkali fusion and hydrothermal methods. The MIL-125(Ti)/MCM-41/ZIF-8 composite was synthesized by adding MCM-41 to the Zn metal precursor before being reacted with the 2-methylimidazole ligand, then adding MIL-125(Ti) to MCM-41/ZIF-8 using the impregnation method. The successful synthesis was confirmed by XRD diffractograms, FTIR spectra, and SEM-EDX results which that align with previous studies. The composite material was then used as a photocatalyst for the degradation of methylene blue dye. Adsorption tests showed that the optimum contact time was achieved at 50 minutes for MCM-41, MCM-41/ZIF-8, 10MMZ, and 20MMZ materials, while for MIL 125(Ti), ZIF-8, and 5MMZ materials, the optimum contact time was achieved at 60 minutes. The adsorption of MB on each material followed a pseudo-second-order kinetic model, indicating that the adsorption process occurs by chemisorption. All composite materials followed the Langmuir isotherm model, which shows monolayer adsorption. In the photocatalytic test, MIL-125(Ti), MCM-41, ZIF-8, MCM 41/ZIF 8, 5MMZ, 10MMZ and 20MMZ were able to degrade MB dye with removal percentages of 97.07; 43.87; 34.80; 25.31; 32.66; 35.55; and 48.58% after 120 minutes of irradiation. The addition of MCM-41 to ZIF-8 can partially cover the active site of ZIF-8, thus reducing the performance of ZIF-8 as a photocatalyst in degrading MB dye. The addition of MIL-125(Ti) to MCM-41/ZIF-8 can increase the photocatalytic activity of the composite because MIL-125(Ti) provides more active sites.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	MIL-125(Ti)/MCM-41/ZIF-8, Adsorpsi, Fotokatalitik, Abu Layang, Metilen Biru, MIL-125(Ti)/MCM-41/ZIF-8, Adsorption, Photocatalytic, Fly Ash, Methylene Blue.
Subjects:	Q Science > QD Chemistry > QD117 Absorption Q Science > QD Chemistry > QD502 Chemical kinetics Q Science > QD Chemistry > QD716 Photocatalysis.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Nesha Saskiana
Date Deposited:	05 Aug 2025 01:29
Last Modified:	05 Aug 2025 01:29
URI:	http://repository.its.ac.id/id/eprint/127199

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