Ditemukan 10 dokumen yang sesuai dengan query
Burhanuddin B.M.
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Telah dilakukan "Studi Diagram Fasa Pada Perlakuan Panas Isotherm KOMPOSISI Senyawa-Senyawa (Zr,Mg,Ca)Xoy" untuk membuat bahan dasar Keramik Zirkonia, dengan cara membuat berbagai variasi komposisi - paduan antara oksida logam Zr dengan oksida logam Mg dan Ca, kemudian dipelajari kondisi struktur mikronya setelah dibakar seperti fasa butir, fasa kristal dan tingkat oksidasinya; untuk mendapatkan persenyawaan (Zr,Mg,Ca)x0y dengan sifat-sifat fisika dan mekanika yang optimal bagi keramuk Zirkonia.
Keramik Zirkonia adalah suatu jenis keramik baru yang mempunyai sifat fisika ...
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Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1993
T-Pdf
UI - Tesis Membership Universitas Indonesia Library
Evi Oktaviani
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Bentonit asal Tapanuli telah dimodifikasi menjadi organoclay dengan menggunakan surfaktan kationik ODTMABr sebagai agen penginterkalasi. Kemudian produk hasil modifikasi dikarakterisasi dengan XRD, FTIR, SEM¬EDS, dan TGA. Sebelum preparasi, dilakukan fraksinasi bentonit sehingga didapat Fraksi 2 yang kaya montmorillonite (MMT) yang kemudian diseragamkan kation bebasnya dengan Na+ (menjadi Na-MMT). Selanjutnya menggunakan tembaga amin, nilai KTK Na diperoleh sebesar 65,5mek/100gram Na-MMT. Variasi jumlah ODTMABr yang digunakan untuk preparasi organoclay adalah 1,0; 2,0; dan 2,5 KTK. Pengaruh penambahan ...
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Depok: Universitas Indonesia, 2011
S687
UI - Skripsi Open Universitas Indonesia Library
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The present study explores the effectiveness of typha domingensis leaf powder for simultaneous removal of aluminium,iron,zinc and lead ions from aqueous solution... ...
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Artikel Jurnal Universitas Indonesia Library
Nor Amira Othman
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Molecularly imprinted polymers (MIPs) have been the most convenient and selected
methods in detection and extraction for many types of specific targets in various fields. MIPs
were prepared by mixing template molecule with functional monomer in the
presence of cross-linker, solvent and
initiator. The selectivity of MIPs is strongly influenced by the types of
functional monomer, solvent and polymerization process used.
Pyrogallol-imprinted polymer (Py-IP) and non-imprinted polymer (NIP) were
synthesized via precipitation
polymerization using 4-vinylpyridine (4-VP), divinylbenzene (DVB) and
azobisisobutyronitrile (AIBN) as functional monomer, ...
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2017
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Nor Amira Othman
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Molecularly imprinted polymers (MIPs) have been the most convenient and selected methods in detection and extraction for many types of specific targets in various fields. MIPs were prepared by mixing template molecule with functional monomer in the presence of cross-linker, solvent and initiator. The selectivity of MIPs is strongly influenced by the types of functional monomer, solvent and polymerization process used. Pyrogallol-imprinted polymer (Py-IP) and non-imprinted polymer (NIP) were synthesized via precipitation polymerization using 4-vinylpyridine ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2017
UI-IJTECH 8:1 (2017)
Artikel Jurnal Universitas Indonesia Library
Azhar Bin Ismail
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The investigation of adsorption isotherms is a prime factor in the ongoing development of adsorption cycles for a spectrum of advanced, thermally-driven engineering applications, including refrigeration, natural gas storage, and desalination processes. In this work, a novel semi-empirical mathematical model has been derived that significantly enhances the prediction of the steady state uptake in adsorbent surfaces. This model, a combination of classical Langmuir and a novel modern adsorption isotherm equation, allows for a higher degree ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:2 (2016)
Artikel Jurnal Universitas Indonesia Library
Divo Albeins Bramantio
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Penyimpanan gas metana hingga saat ini terus dikembangkan agar dapat dimaksimalkan di tingkat global. Selain melalui metode LNG atau CNG, pengembangan metode penyimpanan metana melalui adsorbed natural gas (ANG) menjadi salah satu yang dioptimalkan karena parameter penyimpanannya yang ditetapkan hanya pada temperatur ruangan dan tekanan sekitar 35 Bar. Dengan dasar tersebut, salah satu upaya pengoptimalan penyimpanan metana dengan metode ANG adalah dengan mengembangkan adsorben yang memiliki kapasitas adsorpsi tinggi namun ramah lingkungan. Maka dari itu, ...
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Depok: Fakultas Teknik Universitas Indonesia, 2023
S-pdf
UI - Skripsi Membership Universitas Indonesia Library
Ademola Ajayi-Banji
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Agricultural waste has
increased colossally with development in agricultural production causing environmental
nuisance and degradation. Utilization of coconut husks, one of such type of waste, as a biosorbent for polluted surface water treatment, was
considered in this study. Polluted surface water was gently passed through two
similar columns loaded with 100 and 200 g of coconut husk char respectively.
The treated water samples collected after 30, 60, 90, 120 and 150 mins were
examined for SO42-, NO3- and PO43-
ions concentration. Removal ...
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2016
J-Pdf
Artikel Jurnal Universitas Indonesia Library
Ademola Ajayi-Banji
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Agricultural waste has increased colossally with development in agricultural production causing environmental nuisance and degradation. Utilization of coconut husks, one of such type of waste, as a biosorbent for polluted surface water treatment, was considered in this study. Polluted surface water was gently passed through two similar columns loaded with 100 and 200 g of coconut husk char respectively. The treated water samples collected after 30, 60, 90, 120 and 150 mins were examined for ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2016
UI-IJTECH 7:5 (2016)
Artikel Jurnal Universitas Indonesia Library
Eny Kusrini
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The abundance of graphite waste can be processed into valuable materials; one alternative is by making it into an adsorbent. Graphite-based adsorbent modification can be accomplished by adding magnetite nanoparticles Fe3O4. The addition of magnetite nanoparticles has been reported to improve the adsorption ability of the graphite waste. In this study, we have developed a new carbon dioxide (CO2) adsorbent based on graphite waste modified with magnetite nanoparticle Fe3O4. The Fe3O4 were prepared using an ...
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Depok: Faculty of Engineering, Universitas Indonesia, 2017
UI-IJTECH 8:8 (2017)
Artikel Jurnal Universitas Indonesia Library
