Synthesis, Characterization, and Activity of The Photocatalyst Polyaniline (PANI)/TiO2 in Degrading Rhodamine B Dye

Roy Andreas (Department of Chemistry, Faculty of Mathematic and Natural Sciences, Jenderal Soedirman University, Banyumas, 53122, Indonesia)
Irmanto (Department of Chemistry, Faculty of Mathematic and Natural Sciences, Jenderal Soedirman University, Banyumas, 53122, Indonesia)
Ades Oktaviani (Department of Chemistry, Faculty of Mathematic and Natural Sciences, Jenderal Soedirman University, Banyumas, 53122, Indonesia)

Science and Technology Indonesia
Vol. 7 No. 1 (2022): January

The photocatalysts of Polyaniline (PANI) and composite Polyaniline /TiO2 were syntheses by the interfacial polymerization (twophase organic/water) method. The characteristics of the photocatalyst were identified by FTIR (Fourier Transform Infra-Red), SEM (Scanning Electron Microscopy), and EDX (Energy Dispersive X-ray Spectroscopy). The characteristic FT-IR peaks of Polyaniline and composite Polyaniline/TiO2 are formed due to the formation H-Bonding. The XRD pattern shows that Polyaniline has a typical peak starting from 25.080 (2????) planes (110) and amorphous polymer. The addition of TiO2 (1%, 5% and 10% (w/w)) were found increased the activities. Photocatalyst Polyaniline/TiO2 1% was proven to provide the highest reduction in Rhodamine B degradation, 53%.Rhodamine B degradation increased by 80% at pH 9 with an optimum time of 300 minutes under visible light from a tungsten lamp. The rate of kinetics was obtained following first order with a constant rate of photodegradation of 0.005445 minutes−1.