PENGUJIAN SIFAT FOTOKATALIS LAPISAN TIPIS TiO2 PADA PRODUK DEGRADASI JELANTAH MENGGUNAKAN ELEKTROOPTIS

Authors

  • Ummi Kaltsum Pendidikan Fisika, Universitas PGRI Semarang
  • Affandi Faisal Kurniawan Pendidikan Fisika, Universitas PGRI Semarang
  • P Priyono Jurusan Fisika, Universitas Diponegoro
  • Iis Nurhasanah Jurusan Fisika, Universitas Diponegoro

DOI:

https://doi.org/10.26740/jpfa.v7n2.p61-67

Keywords:

produk degradasi, jelantah, TiO2, fotokatalis, elektrooptis

Abstract

Mutu jelantah lebih rendah dibandingkan minyak goreng baru, karena mengandung produk-produk degradasi (radikal bebas, molekul lemak jenuh, total polar material, dan polimer). Jumlah produk degradasi dalam jelantah dapat diturunkan menggunakan lapisan tipis TiO2 yang memiliki sifat fotokatalis. Lapisan tipis TiO2 dibuat dengan mencampurkan TTiP dan AcAc dengan perbandingan molar 1:2. Campuran dideposisikan di atas substrat kaca dengan metode spray coating pada suhu 450 oC. Sebagian lapisan tipis yang sudah di-coating kemudian dianil pada suhu 500 oC selama 2 jam. Proses penurunan produk degradasi dalam minyak goreng dilakukan menggunakan lapisan tipis TiO2 tanpa anil dan lapisan tipis TiO2 yang dianil secara terpisah melalui proses fotokatalis. Proses fotokatalis dilakukan menggunakan matahari selama 5 jam. Keberadaan produk-produk degradasi dalam minyak goreng dikaji berdasarkan perubahan sudut polarisasi cahaya minyak goreng. Besarnya perubahan sudut polarisasi minyak goreng sebanding dengan jumlah produk degradasi. Tidak ada perbedaan yang signifikan pada kedua jenis lapisan tipis TiO2 dalam menurunkan produk degradasi. Setelah proses fotokatalis selama 5 jam, kedua jenis lapisan tipis TiO2 berhasil menurunkan jumlah produk degradasi yang sama yaitu hingga 71,43%. Hasil tersebut menunjukkan kedua jenis lapisan tipis TiO2 mampu mengurangi produk degradasi dalam jelantah.

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Published

2017-12-30

How to Cite

Kaltsum, U. (2017) “PENGUJIAN SIFAT FOTOKATALIS LAPISAN TIPIS TiO2 PADA PRODUK DEGRADASI JELANTAH MENGGUNAKAN ELEKTROOPTIS”, Jurnal Penelitian Fisika dan Aplikasinya (JPFA), 7(2), pp. 61–67. doi: 10.26740/jpfa.v7n2.p61-67.

Issue

Vol. 7 No. 2 (2017)

Section

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