Perbandingan Efektivitas Dekolorisasi Fotokatalitik Metilen Biru dan Metil Jingga menggunakan Semikonduktor ZnO pada Variasi pH

Authors

  • Annisa M. Dewi Institut Teknologi Sepuluh Nopember, Indonesia
  • Wahyu B. Widayatno Institut Teknologi Sepuluh Nopember, Indonesia
  • Yuly Kusumawati Institut Teknologi Sepuluh Nopember, Indonesia

DOI:

https://doi.org/10.25077/jrk.v10i2.328

Keywords:

Photocatalytic, ZnO, pH, Methylene blue, Methyl Orange

Abstract

The comparison of photocatalytic decolorization of Methylene Blue and Methyl Orange using ZnO Semiconductor under UV-LED radiation has been studied at varied pH. ZnO have been synthesized using co-precipitation method. The Scanning Electron Microscopy (SEM) result showed that the synthesized ZnO has a hexagonal structure with the particle size range 0.125 to 0.5 µm. The BET isotherm characterization showed the synthesized ZnO has a specific surface area (SBET), mesoporous volume and micropore volume of 60.20 m2/g, 0.541 cm3/g and 0.02 cm3/g, respectively. The observation of the effect of pH to the photocatalytic activity showed that the highest removal percentage occurred at pH 9 with the value of 95.64% for methylene blue and occurred at pH 3 with the value of 6.236% for methyl orange. 

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Published

2019-09-30

How to Cite

Dewi, A. M., Widayatno, W. B., & Kusumawati, Y. (2019). Perbandingan Efektivitas Dekolorisasi Fotokatalitik Metilen Biru dan Metil Jingga menggunakan Semikonduktor ZnO pada Variasi pH. Jurnal Riset Kimia, 10(2), 75–84. https://doi.org/10.25077/jrk.v10i2.328

Issue

Vol. 10 No. 2 (2019): September

Section

Articles

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