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ITS » Undergraduate Theses » Teknik Kimia
Posted by dee@its.ac.id at 18/01/2012 08:26:14  •  2188 Views


PEMBUATAN PARTIKEL SILIKA BERPORI DARI WATERGLASS MELALUI METODE PEMISAHAN FASE MENGGUNAKAN GELATIN SEBAGAI TEMPLATE

SYNTHESIS OF POROUS SILICA PARTICLES FROM WATERGLASS BY PHASE SEPARATION METHOD USING GELATIN AS TEMPLATE

Author :
IMANUEL, ADRIAN  ( 2307100013 )
YUWANA, YOHAN




ABSTRAK

Penelitian ini menunjukkan pengaruh penambahan gelatin sebagai template dengan berbagai macam konsentrasi terhadap karakteristik partikel seperti luas permukaan volume pori dan diameter pori pada pembuatan partikel silika berpori dengan metode pemisahan fasa. Sintesa partikel silika berpori terdiri atas tahap pembuatan water glass 2.545berat yaitu dengan mengencerkan water glass 28 berat dengan air demineral dengan perbandingan 1 10. Lalu tahap pembuatan larutan asam gelatin yaitu dengan melarutkan gelatin dengan HCl 1N. Larutan asam gelatin akan dititrasi dengan larutan waterglass pada suhu ruangan sampai pemisahan fasa terjadi. Langkah selanjutnya endapan di-aging selama 18 jam lalu dicuci dengan air demineral dan disaring endapan lalu dikeringkan pada suhu 100oC selama 24 jam endapan lalu dikalsinasi pada suhu 550oC selama 4 jam. Kemudian partikel akan dianalisa menggunakan metode BET-Adsorbsi Nitrogen dan FTIR Fourier Transform Infrared. Partikel silika yang diperloeh berupa bubuk halus powder berwarna putih. Konsentrasi gelatin yang menghasilkan partikel silika berpori dengan luas permukaan paling besar adalah 0.6 berat. Jika konsentrasi lebih besar dari 0.6 berat maka gelatin cenderung akan menyelubungi partikel silika dan luas permukaan yang dihasilkan kecil. Pada konsentrasi gelatin 0.66berat luas area silika berpori setelah kalsinasi adalah 238.29 m2gr dengan volume pori 0.226 cm3gr dan diameter pori 3.8 nm. Dengan demikian dapat disimpulkkan bahwa silika berpori dapat dihasilkan melalui proses pemisahan fasa.


ABSTRACT

This research shows the influence of adding gelatin as a template with various concentration with particle characteristics including surface area pore volume and pore diameters in synthesis of porous silica particle by phase separation method. The synthesis of porous silica particle was made by several treatment. The precursor i.e silica sol was made by diluting waterglass 28wt with demineralized water with 1 10 ratio. Then preparation to make acid gelatin solution was made by diluting gelatin powder to chloric acid HCl 1N solution. The next step is titration of acid gelatin solution to water glass 2.545wt at ambient temperature until phase separation occurred. Then aging the solution for 18 hours then washed with demineralized water and filter the solid. Next treatment was drying the solid at 100oC for 24 hours then calcination of the solid at 550oC for 4 hours. The particle formed analyzed by BET-Nitrogen Adsorbtion and FTIR Fourier Transform Infrared. Particle were in fine powder formed with white color. The result were showed that particle with gelatin concentration less than 0.6 wt result the highest surface area. If the gelatin concentration higher than 0.6 wt then it will act more like as a blanket than a template gelatin were covering the silika particle and result small surcface area. At gelatin concentration 0.66 wt surface area of silika particle after calcination were 238.29 m2gr with pore volume 0.226 cm3gr and pore diameter 3.8 nm. The conclusion that porous silica particle can be made by phase separation method.



KeywordsPartikel silika berpori; Silika; Template; Gelatin
 
Subject:  Biokimia tanah;Silika
Contributor
  1. Prof. Dr.Ir. Heru Setyawan, M.Eng.
Date Create: 28/07/2011
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-3100011045185
Collection ID: 3100011045185
Call Number: RSK 661.068 3 Ima p


Source
Undergraduate Thesis of Chemical Engineering, RSK 661.068 3 Ima p, 2011

Coverage
ITS Community

Rights
Copyright @2011 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




[ Download - Open Access ]

  1.  ITS-Undergraduate-17336-2307100123-Abstract_id.pdf - 178 KB
  2.  ITS-Undergraduate-17336-2307100123-Abstract_en.pdf - 116 KB
  3.  ITS-Undergraduate-17336-2307100123-Conclusion.pdf - 236 KB
  4.  ITS-Undergraduate-17336-2307100123-Paper.pdf - 210 KB




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