Kinerja Mixed Matrix Membrane (MMM) PSf/ZnO untuk Pemisahan Gas

Sari, Kharisma Puspa (2021) Kinerja Mixed Matrix Membrane (MMM) PSf/ZnO untuk Pemisahan Gas. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini telah dipreparasi Mixed Matrix Membrane (MMM) PSf/ZnO dengan modul flat sheet. ZnO disintesis dari prekursor seng asetat dan asam oksalat dengan metode hidrotermal kemudian digunakan sebagai material pengisi pada matriks polisulfon. MMM PSf/ZnO dipreparasi dengan teknik inversi fasa agar terbentuk membran asimetris. Variasi penambahan ZnO yang digunakan adalah 0,1%, 0,3% dan 0,5% b/b, berat relatif terhadap berat polimer. Hasil karakterisasi X-Ray Diffraction (XRD) dan Fourier Transform Infrared (FTIR) menunjukkan interaksi antara PSf dan ZnO adalah interaksi fisik. Sedangkan hasil Scanning Electron Microscopy (SEM) dan Energy Dispersive X-ray Analysis (EDXA) menunjukkan unsur Zn tersebar merata di bagian permukaan maupun cross section membran. Secara umum urutan permeabilitas gas pada MMM PSf/ZnO adalah H2 > N2 > CO2 > O2 > CH4. Selektivitas gas H2/CO2, H2/CH4, CO2/CH4, dan N2/CH4 yang optimum teramati pada variasi penambahan ZnO 0,3%b/b dengan peningkatan masing-masing sebesar 82%, 224%, 78% dan 151% dibanding dengan membran polisulfon murni. Untuk pasangan gas H2/N2 peningkatan selektivitas tertinggi sebesar 36% diperoleh pada penambahan ZnO 0,5%b/b. Sedangkan untuk pasangan gas CO2/N2 dan O2/N2 pola selektivitasnya belum teramati dengan pasti. MMM PSf/ZnO sangat berpotensi dimanfaatkan untuk pemisahan gas N2/CH4 dan H2/CO2 karena kinerja pemisahan N2/CH4 berada di atas garis Robeson dan H2/CO2 berada di sekitar garis Robeson.
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In this study, PSf/ZnO Mixed Matrix Membrane (MMM) has been prepared with a flat sheet module. ZnO was synthesized from zinc acetate and oxalic acid precursors by hydrothermal method and then used as filler material in polysulfone matrix. MMM PSf/ZnO was prepared by phase inversion technique to form an asymmetric membrane. Variations of ZnO loading were 0,1%, 0,3% and 0,5% w/w, weight relative to the weight of the polymer. The results of X-Ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) show that the interaction between PSf and ZnO is a physical interaction. Meanwhile, the results of Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Analysis (EDXA) showed a uniform distribution of Zn elements on the surface and cross section of the membrane. In general, the order of gas permeability in PSf/ZnO membranes is H2 > N2 > CO2 > O2 > CH4. The optimum selectivity of H2/CO2, H2/CH4, CO2/CH4, and N2/CH4 gases was observed in the addition of 0,3% w/w ZnO with an increase of 82%, 224%, 78% and 151% respectively compared to the neat polysulfone membrane. For H2/N2 gas pair, the highest increasement of selectivity 36% was obtained at the addition of 0,5% w/w ZnO. Beside that, for the CO2/N2 and O2/N2 gas pairs the trend has not been clearly observed. MMM PSf/ZnO is very potential for gas separation of N2/CH4 and H2/CO2 because the separation performance of N2/CH4 is above the Robeson line and H2/CO2 is around the Robeson line.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Pemisahan gas, Mixed Matrix Membrane, Polisulfon, ZnO, Gas separation, Mixed Matrix Membrane, Polysulfone, ZnO.
Subjects:	T Technology > TP Chemical technology > TP248.25.M46 Membrane separation
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	Kharisma Puspa Sari
Date Deposited:	26 Aug 2021 03:54
Last Modified:	26 Aug 2021 03:54
URI:	http://repository.its.ac.id/id/eprint/89434

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