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Amelia, Reza
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology

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Journal : Jurnal Periodic

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Degradasi Congo Red Secara Fotosonolisis Menggunakan Katalis ZnO-TiO2 Amelia, Reza; Sanjaya, Hary
Periodic Vol 8, No 2 (2019): PERIODIC
Publisher : Jurusan Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (23.431 KB) | DOI: 10.24036/p.v8i2.108767

Abstract

This study aims to determine the optimum time and amount of TiO2 used for doping the optimum ZnO in degrading Congo Red dye. The results of the percentage degradation were obtained from the absorbance value which was measured using a UV-Vis Spectrophotometer. (λmax) Congo Red obtained from measurements using a UV-Vis Spectrophotometer is 498 nm. The results showed that the optimum irradiation and sonication time to degrade Congo Red was 75 minutes with a degradation percentage of 98.11%. On the effect of variations in the amount of TiO2 doping showed optimum results at 20% ZnO-TiO2, with a degradation percentage of 96.85%. The results of XRD analysis showed that the crystal size of 20% ZnO-TiO2 was 48.57-96.58 nm. While analysis with UV-DRS obtained a band gap value of 20% ZnO-TiO2 which is 3.11 Ev.
Co-Authors Eliyana, Siti Febrio, Eren Putra Hary Sanjaya Karahayon, Yoseph Sugiharto Mahrawi, Mahrawi Oktaviani, Hesti Pipit Marianingsih Purnama, Dania