Kusumaningtyas, Shita Agustin (2016) Pengaruh pH dalam sintesis TiO2 anatase dengan metode chemical bath deposition terhadap karakteristik sensor gas volatile organic compound (methanol). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Telah dilakukan sintesis lapisan tipis TiO2 anatase dari prekursor
TiCl3 pada substrat FTO dan Al2O3 menggunakan metode chemical bath
deposition dengan variasi pH 3,5, pH 5,5, pH 7, pH 8,5 dan pH 9,5.
Lapisan tipis TiO2 yang terbentuk diuji dengan XRD, AFM dan BET.
Dari hasil pengujian didapatkan bahwa semakin tinggi pH, fase yang
terbentuk cenderung anatase dan didapatkan pula bahwa penambahan
pH berpengaruh terhadap kontur TiO2. Penggunaan substrat sebagai
media penumbuhan TiO2 mempengaruhi fase serta ukuran kristal TiO2.
Pada substrat FTO dengan pH 9,5 didapatkan fase anatase dengan
ukuran kristal 16,25 nm sedangkan pada serbuk TiO2 memiliki ukuran
kristal 60,85 nm. Sintesis TiO2 dengan pH 3,5 memiliki luas permukaan
paling besar yaitu 88,8 m2/g. Hasil uji sensor gas menunjukkan bahwa
TiO2 pada substrat FTO tidak cocok jika diaplikasikan sebagai sensor
gas karena FTO memiliki sifat konduktif.
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Synthesis of thin layer TiO2 anatase from TiCl3 precursor has been
successfully grown on FTO and Al2O3 substrates by using chemical bath
deposition. The pH of synthesis was varied i.e 3.5, 5.5, 7, 8.5, and 9.5.
Several characterization methods were applied to check whether the film
has been formed by means of XRD, AFM and BET. The result indicate
that the higher the pH used, the more fraction of anatase was observed
and influence of pH addition had an effect on TiO2 peak. Our result also
reveqal that the use of FTO led to difference in the phase formation and
crystallite size of TiO2, i.e.16.25 nm using FTO and 60,85 nm for
powder. Synthesis TiO2 from pH 3.5 has a greatest surface area with
value of 88.8 m2/g. Gas sensor test result indicate that TiO2 substrate on
the FTO is not suitable when applied as gas sensors because of its
conductive proprerties.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSF 661.806 Kus p |
| Uncontrolled Keywords: | chemical bath deposition, sensor gas, pH, TiO2 anatase, volatile organic compound |
| Subjects: | T Technology > TP Chemical technology > TP350 Natural gas--Drying. |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | - Taufiq Rahmanu |
| Date Deposited: | 02 Dec 2019 06:22 |
| Last Modified: | 02 Dec 2019 06:22 |
| URI: | http://repository.its.ac.id/id/eprint/72146 |
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