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Dewa Ayu Wismayanti
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Chemistry

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PEMBUATAN KOMPOSIT ZnO-ARANG AKTIF SEBAGAI FOTOKATALIS UNTUK MENDEGRADASI ZAT WARNA METILEN BIRU Dewa Ayu Wismayanti; Ni Putu Diantariani; Sri Rahayu Santi
Jurnal Kimia (Journal of Chemistry) Vol. 9, no. 1 Januari 2015
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.282 KB) | DOI: 10.24843/JCHEM.2015.v09.i01.p18

Abstract

Preparation of ZnO-activated carbon composite with a mass ratio of ZnO : activated charcoal of 5:2; 5:1 and 15:2 have been carried out using the sol-gel method The characterisation of  ZnO-activated carbon composite was done by using  X-Ray Diffraction (X-RD) and Fourier Transform Infra Red (FT-IR). The characterization using X-RD showed that the ZnO has an hexagonal crystal structure  with crystal size of 23.13 nm; 23.38 nm and 40.25 nm, while FT-IR spectra showed that there were Zn-O strain, C-O aliphatic, C-H bending, C-C aliphatic  and O-H bending vibrations. ZnO-activated carbon composite was applicated as photocatalyst to degradate  methylene blue by irradiatting  the compound with UV light for 5 hours. The  results showed that the ZnO-activated carbon composite at the ratio of 5:1 at optimum pH of 11 gave the highest percentage of methylene blue degradation which was of 99,97±0,02 %.
Co-Authors Ni Putu Diantariani Sri Rahayu Santi