PEMBUATAN KOMPOSIT ZnO-ARANG AKTIF SEBAGAI FOTOKATALIS UNTUK MENDEGRADASI ZAT WARNA METILEN BIRU

  • Dewa Ayu Wismayanti
  • Ni Putu Diantariani
  • Sri Rahayu Santi

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 %.

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Author Biographies

Dewa Ayu Wismayanti

Jurusan Kimia FMIPA Universitas Udayana, Bukit Jimbaran, Bali

Ni Putu Diantariani
Jurusan Kimia FMIPA Universitas Udayana, Bukit Jimbaran, Bali
Sri Rahayu Santi
Jurusan Kimia FMIPA Universitas Udayana, Bukit Jimbaran, Bali
Published
2015-01-01
How to Cite
WISMAYANTI, Dewa Ayu; DIANTARIANI, Ni Putu; SANTI, Sri Rahayu. PEMBUATAN KOMPOSIT ZnO-ARANG AKTIF SEBAGAI FOTOKATALIS UNTUK MENDEGRADASI ZAT WARNA METILEN BIRU. Jurnal Kimia (Journal of Chemistry), [S.l.], jan. 2015. ISSN 2599-2740. Available at: <https://ojs.unud.ac.id/index.php/jchem/article/view/15270>. Date accessed: 29 mar. 2024. doi: https://doi.org/10.24843/JCHEM.2015.v09.i01.p18.
Section
Articles

Keywords

ZnO-activated carbon composite, photocatalyst, photodegradation, and methylene blue

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