Deposisi Komposit Lignin/Magnetit (Fe3O4) Pada Substrat Aerogel Selulosa Dengan Bantuan Medan Magnet sebagai Sistem Bilayer Solar Steam Generator (SSd)

Pamuji, Annisa Nur Fidyanti (2024) Deposisi Komposit Lignin/Magnetit (Fe3O4) Pada Substrat Aerogel Selulosa Dengan Bantuan Medan Magnet sebagai Sistem Bilayer Solar Steam Generator (SSd). Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kelangkaan air merupakan masalah yang diperkirakan makin memburuk di masa depan karena keterbatasan sumber dan peningkatan kebutuhan. Dibutuhkan teknologi baru untuk menangani masalah tersebut, salah satunya adalah teknologi solar steam generator yang merupakan teknologi desalinasi air laut menggunakan sinar matahari sebagai sumber energi. Solar steam generator terdiri dari dua komponen utama yang sangat mempengaruhi efisiensi evaporasinya, yaitu substrat dan bahan fototermal. Penggabungan substrat berupa aerogel selulosa dan bahan fototermal berupa komposit lignin-Fe3O4 menggunakan metode ko-gelasi dengan pengaruh medan magnet memberikan pengaruh terhadap porositas, kapilaritas dan konduktivitas termal performansi SSG bilayer dalam evaporasi air. Didapatkan SSG bilayer dengan fototermal berupa komposit lignin-Fe3O4 variasi lignin 2% berat ketika digabungkan dengan aerogel selulosa dan diberi pengaruh medan magnet memiliki laju evaporasi tertinggi yaitu sebesar 1,15 kg.m-2.jam-1.==========================================
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Water scarcity is a problem predicted to worsen in the future due to limited resources and increasing demand. New technologies are needed to address this issue, one of which is the solar steam generator technology, a seawater desalination technology using sunlight as an energy source. A solar steam generator consists of two main components that greatly affect its evaporation efficiency: the substrate and the photothermal material. The combination of a cellulose aerogel substrate and a photothermal material in the form of a lignin-Fe3O4 composite using a co-gelation method with the influence of a magnetic field affects the porosity, capillarity, and thermal conductivity of the bilayer SSG's performance in water evaporation. A bilayer SSG with a photothermal material in the form of a lignin-Fe3O4 composite with a 2% weight variation of lignin, when combined with cellulose aerogel and subjected to a magnetic field, achieved the highest evaporation rate of 1.15 kg.m-2.h-1.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	aerogel selulosa, komposit lignin/magnetit, medan magnet, solar steam generator,aerogel cellulose, composite lignin/magnetite, magnetic field, solar steam generator
Subjects:	T Technology > TP Chemical technology > TP155.7 Chemical processes. T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Chemical Engineering > 24101-(S2) Master Thesis
Depositing User:	Annisa Nur Fidyanti Pamuji
Date Deposited:	06 Aug 2024 01:00
Last Modified:	06 Aug 2024 01:00
URI:	http://repository.its.ac.id/id/eprint/111225

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