Kurniawati, Riskaviana (2019) Sintesis Komposit ZSM-5-TiO2-OTMS Sebagai Senyawa Hidrofobik. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Pada penelitian ini telah dilakukan sintesis komposit ZSM-5-TiO2-OTMS
dengan metode sol gel dan mengubah sifat hidrofil menjadi hidrofob. Sintesis
diawali pembuatan komposit ZSM-5-TiO2, dengan prekursor Titanium
Isopropoksida (TiIP) dan isopropanol sebagai pengontrol hidrolisis. Fasa
komposit ZSM-5-TiO2 (10% TPZ) adalah anatase yang memiliki luas permukaan
329,25 m2/g, namun distribusi TiO2 kurang merata. Selanjutnya, komposit 10%
TPZ ditambahkan kedalam OTMS. Hasil padatan dikeringkan dan dikarakterisasi.
Difraktogam XRD tetap menunjukkan karakteristik puncak difraksi anatase
sehingga tidak mengubah kristalinitasnya. Pada karakterisasi FTIR, terdapat 2 pita
serapan baru pada bilangan gelombang sekitar 1471 dan 2900 cm-1. Pita serapan
2900cm-1 menunjukkan vibrasi C-H stretching. Pita serapan 1470cm-1
menunjukkan vibrasi C-O stretching, namun intensitasnya sangat kecil.
Penambahan OTMS pada permukaan komposit ZSM-5-TiO2 menurunkan luas
permukaan spesifik dan diameter pori komposit ZSM-5-TiO2-OTMS . Uji
hidrofobik dilakukan dengan metode gravimetri. Semakin sedikit perubahan
massa pada sampel seiring dengan bertambahnya waktu, semakin bertambah sifat
hidrofobiknya. Komposit 2,12 HTPZ yang mengandung 18,17% berat C
merupakan komposit hidrofobik yang paling baik dengan perubahan massa yang
konstan selama 90menit. ========== In this study, synthesis of ZSM-5-TiO2-OTMS composites was carried out by the
sol gel method and changed the hydrophilic properties to hydrophobicity.
Synthesis of ZSM-5-TiO2 composites is made first in which the ZSM-5 is loaded
into the TiO2 precursor, Titanium Isopropoxide (TiIP) and the hydrolysis process
is controlled by the addition of isopropanol. The ZSM-5-TiO2 composite (10%
TPZ) phase is anatase which has a surface area of 329.25 m2/g, but the
distribution of TiO2 is less uniform. After that, 10% TPZ composite was modified
by the addition of OTMS. Solids are dried and characterized. Difractogram XRD
still shows the characteristics of peak anatase diffraction. In FTIR
characterization, there are 2 new absorption bands at wavenumbers around 1471
and 2900cm-1. The 2900cm-1 absorption band shows the C-H stretching vibration.
The absorption band of 1470cm-1 shows the vibration of C-O stretching, but the
intensity is very small. The addition of OTMS on the ZSM-5-TiO2 composite
reduced the spesific surface area and pore diameter of ZSM-5-TiO2-OTMS
composites. The hydrophobic test was carried out by the gravimetric method. The
fewer changes in mass in the sample as time increases, the hydrophobic properties
increases. Composite 2.12 HTPZ containing 18.17% by weight C is the best
hydrophobic composite with constant mass change for 90 minutes.
Item Type: | Thesis (Masters) |
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Uncontrolled Keywords: | ZSM-5, ZSM-5-TiO2, OTMS, ZSM-5-TiO2-OTMS, hidrofobik |
Subjects: | Q Science > QC Physics > QC173.4.C63 Composite materials |
Divisions: | Faculty of Natural Science > Chemistry > 47101-(S2) Master Thesis |
Depositing User: | - Davi Wah |
Date Deposited: | 02 May 2019 03:35 |
Last Modified: | 02 May 2019 03:35 |
URI: | http://repository.its.ac.id/id/eprint/62897 |
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