ABSTRAK
Telah dilakukan penelitian mengenai pengaruh kombinasi sistem adsorpsi
dan fotoelektrodegradasi untuk dekolorisasi Remazol Yellow FG. Adsorpsi
dilakukan menggunakan adsorben alumina dan silika yang diaktivasi
menggunakan H2SO4 1 M dan NaOH 1 M. Fotoelektrodegradasi dilakukan
menggunakan elektroda Ti/TiO2 sebagai katoda dan Ti/TiO2-PbO sebagai anoda.
Karakterisasi material dilakukan menggunakan spektrofotometer UV-Vis, X-Ray
Diffraction (XRD), dan Fourier Transform Infra Red (FTIR). Aktivasi adsorben
dapat meningkatkan kemampuan adsorpsi Remazol Yellow FG pada alumina
aktivasi asam dan silika aktivasi basa masing-masing sebesar 99,50% dan
81,63%. Faktor pH mempengaruhi kemampuan adsorpsi Remazol Yellow FG,
dimana alumina asam optimum pH = 3, alumina basa optimum pH = 4 dan pH =
10, silika asam optimum pH = 5, silika basa optimum pH = 6 dan pH = 10.
Fotoelektrodegradasi zat warna Remazol Yellow FG menggunakan anoda TiO2-
PbO dengan beda potensial 7,5 Volt selama 10 menit mampu mendegradasi zat
warna hingga 72,75%. Hasil sistem adsorpsi dan fotoelektrodegradasi dapat di
kombinasikan sehingga menghasilkan persentase dekolorisasi Remazol Yellow FG
mencapai 99,70%.
Kata Kunci: Adsorpsi, fotoelektrodegradasi, Remazol Yellow FG, TiO2-PbO
ABSTRACT
The combination of adsorption and photoelectrodegradation system for
Remazol Yellow FG decolorization has been studied. Adsorption was done using
alumina and silica, which it were activated using H2SO4 1 M and NaOH 1 M.
Photoelectrodegradation cell were built by electrode Ti/TiO2 as a cathode and
Ti/TiO2-PbO as an anode. Material characterization were performed by
Spectrophotometer UV-Vis, X-Ray Diffraction (XRD), and Fourier Transform
Infra Red (FTIR). Activation of the adsorbent can increase Remazol Yellow FG
adsorption on alumina base and silica acid were reached 99,50% and 81,63%,
respectively. The optimum condition of Remazol Yellow FG 6 adsorption by
alumina acid was at pH = 3, alumina base were at pH = 4 and pH = 10, silica acid
was at pH = 5, and silica base were at pH = 6 and pH = 10. Degradation of
Remazol Yellow FG using TiO2-PbO electrode was 72,75% at a potential cells of
7,5 Volts for 10 minutes. The combination of adsorption and
photoelectrodegradation can decrease the concentration Remazol Yellow FG
achieved 99,70%.
Key words: Adsorption, photoelectrodegradation, Remazol Yellow FG, TiO2-
PbO