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Drs. Abdul M.Si. Haris
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Chemical Engineering, Chemistry & Bioengineering Chemistry

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METODE ELEKTROFOTOKATALISIS DAN FOTOKATALISIS DENGAN TiO2 PADA DEKOLORISASI ZAT WARNA REMAZOL BLACK B DAN PENURUNAN KONSENTRASI ION LOGAM Cu2+ SECARA SIMULTAN Herlita, Ita; , M.Si., Drs. Gunawan; Haris, M.Si., Drs. Abdul
Chem Info Journal Vol 1, No 2 (2013)
Publisher : Chem Info Journal

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Abstract

Has done research on use electrophotocataysis and photocatalysis methods by using TiO2 for decolorize of remazol black B dye and decrease the concentration of Cu2+metal ion simultaneously. This research was carried out by electrophotocatalysis is electrolyzing sample solution using and TiO2/FTO as anoda and C as cathoda at a potential of 3 volts and for the photocatalysis was done by the addition of 0.1685 grams of TiO2 powder in the sample solution. The two methods in the photocatalys reactor were irradiation with UV-C light and mixtured using 4 rpm for 210 minutes. Sample solution were analyzed by UV-Vis and AAS. The results showed that electrophotocatalysis more effective methods to decolorize dye solution of remazol black B and to decrease the concentration of Cu2+metal ion simultaneously. Decolorization percentage of remazol black B dye with electrophotocatalysis and photocatalysis methods were 98.65% and 31,05%, while the decrease percentage of Cu2+ metal ion concentration were 98.25% and 31,50% respectively.
METODE ELEKTROFOTOKATALISIS DAN FOTOKATALISIS DENGAN TiO2 PADA DEKOLORISASI REMAZOL GOLDEN YELLOW RNL DAN PENURUNAN KONSENTRASI ION LOGAM Cd2+ SECARA SIMULTAN N.R., Ade Novianti; , M.Si., Drs. Gunawan; Haris, M.Si., Drs. Abdul
Chem Info Journal Vol 1, No 2 (2013)
Publisher : Chem Info Journal

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Experiments on elektrofotokatalisis using TiO2 on decolorization remazol golden yellow RNL and decreased concentrations of Cd2+ metal ion simultaneously have performed. The purpose of this study was to compare the effectiveness of photocatalytic TiO2 in the form of thin layers of powder that was used to electrophotocatalyzed remazol golden yellow RNL and to reduce the concentration of metal ion of Cd2+. The electrophotokatalysis method use TiO2/FTO working electrode and photocatalytic TiO2 powder for 240 minutes. UV-Vis spectrophotometer was used to determine the absorbance decrease of remazol golden yellow RNL, while atomic absorption spectrophotometer (AAS) was used to determine the decrease concentration of metal ion Cd2+. The results obtained in this study for working electrode TiO2/FTO are more effective to decolorize remazol golden yellow RNL and to decrease the concentration of metal ion Cd2+ compared to the use of TiO2 powder. Electrophotokatalysis using TiO2/FTO working electrode was capable to decolorize remazol golden yellow RNL by 87.9% and to lower the concentration of metal ion of Cd2+ by 82.7%, while the photocatalytic method was only able to decolirize remazol golden yellow RNL by 25.87% and to decrease the concentration of metal ion Cd2+ amounted to 53.2%   
Co-Authors Ade Novianti N.R. Drs. Gunawan M.Si. Ita Herlita