OPTIMASI VOLTASE DAN WAKTU PADA ELEKTRODEKOLORISASI ZAT WARNA INDIGOSOL GOLDEN YELLOW IRK DENGAN ELEKTRODA PbO2 DAN GRAFIT (C)
Jamal Adi Prasetiyo, Futya Milatina, dan Ika Yuliawati
The use of synthetic dye on the textile industry has increased along with the times. One synthetic dye that is often used in the textile industry are dyes Indigosol Golden Yellow IRK. The dye belonged vessel soluble dye. The use of synthetic dye stuffs have a negative impact because of the synthetic dye contained harmful substances such as azo group that can undergo enterohepatic circulation in the body. To deal with pollution or the negative impact of the use of the methods elektrodekolorisasi. This study aims to find the optimum conditions that include voltage and the time required to menggradasi or damage dye electrolysis method. Optimization studies conducted by mengelektrolisis Indigosol Golden Yellow IRK as much as 40 ml H2O2 concentration of 20 ppm to 10,000 mg / L, about 4 ml 0,71 gram Na2SO4 as electrolyte and H2SO4 added until pH 4. Analysis of the results measured using UV spectrophotometry long-Vis.yang gelombangny gained from research Nugroho. The research data shows that the electrolysis using graphite electrodes with PbO2 on elektrodekolorisasi dye Golden Yellow IRK Indigosol able menggradasi color to 95.63% in the 6 volts for 5 minutes The results are better than Sigit Nugroho research by 90% that use graphite electrodes.