Peningkatan Kinerja Membran PVDF/LiCl Dengan Memodifikasi Permukaan Membran Menggunakan Zeolit-NaY Spray Coating Untuk Pemanenan Mikroalga Dunaliella Salina

Ningtiar, Ellyzia Sukma (2021) Peningkatan Kinerja Membran PVDF/LiCl Dengan Memodifikasi Permukaan Membran Menggunakan Zeolit-NaY Spray Coating Untuk Pemanenan Mikroalga Dunaliella Salina. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Modifikasi permukaan membran PVDF/LiCl menggunakan material Zeolit-NaY secara spray coating telah berhasil dilakukan pada penelitian ini. Zeolit-NaY disintesis dengan metode hidrotermal pada suhu 100°C selama 7 jam. Preparasi membran PVDF/LiCl dengan pelarut N-Metil-2-pirolidon (NMP) dilakukan dengan metode inversi fasa. Membran PVDF/LiCl/Zeolit-NaY di semua variasi dikarakterisasi dengan instrumen XRD, FTIR, uji Water Contact Angle (WCA), serta dilakukan pengujian permeasi air dan uji pemanenan mikroalga Dunaliella salina. Hasil penelitian menunjukkan bahwa, pelapisan Zeolit-NaY dengan berbagai konsentrasi (0,10, 0,15, 0,20% b/b) telah terbukti dapat meningkatkan hidrofilisitas dan kinerja membran PVDF/LiCl untuk pemanenan mikroalga Dunaliella salina. Peningkatan hidrofilisitas membran ditandai dengan penurunan sudut kontak dari 84,14° pada membran PVDF/LiCl tanpa modifikasi menjadi 68,79° untuk membran PVDF/LiCl/Zeolit-NaY 0,20% b/b. Berdasarkan uji kinerja, membran PVDF/LiCl/Zeolit-NaY 0,15% b/b memberikan hasil terbaik dibanding membran lainnya, dengan laju permeasi air mencapai 500 L/m2h, rata-rata fluks 159,09 L/m2h, dan persen rejeksi mencapai 100% pada pemanenan mikroalga Dunaliella salina. ================================================================================================
Modification of the surface of the PVDF/LiCl membrane using NaY-Zeolite material by spray coating has been successfully carried out in this study. NaY-Zeolite was synthesized by hydrothermal method at 100°C for 7 hours. The preparation of PVDF/LiCl membrane with N-Methyl-2-pyrrolidone (NMP) solvent was carried out using the phase inversion method. PVDF/LiCl/NaY-Zeolite membranes in all variations were characterized by XRD instruments, FTIR, Water Contact Angle (WCA) test, as well as water permeation and harvesting tests for microalgae Dunaliella salina. The results showed that NaY-Zeolite coating with various concentrations (0.10, 0.15, 0.20% w/w) has been shown to increase the hydrophilicity and performance of PVDF/LiCl membranes for harvesting microalgae Dunaliella salina. The increase in the hydrophilicity of the membrane was indicated by a decrease in the contact angle from 84.14° for the PVDF/LiCl membrane without modification to 68.79° for the PVDF/LiCl/NaY-Zeolite 0.20% w/w membrane. Based on the performance test, PVDF/LiCl/NaY-Zeolite 0.15% w/w gave the best results compared to other membranes, with a water permeation rate of 500 L/m2h, an average flux of 159.09 L/m2h, and a rejection percent reached 100% in the harvesting of microalgae Dunaliella salina.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	PVDF/LiCl Membrane, Zeolit-NaY, Spray Coating, Dunaliella salina, Membran PVDF/LiCl, Zeolit-NaY, Spray Coating, Dunaliella salina.
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:	Ellyzia Sukma Ningtiar
Date Deposited:	25 Aug 2021 05:52
Last Modified:	25 Aug 2021 05:52
URI:	http://repository.its.ac.id/id/eprint/89475

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