Photodegradation and Photoelectrodegradation of Methyl Orange and Methyl Violet Dyes using Graphite/PbTiO3 Composite under Visible Light Irradiation

The composite of Graphite/PbTiO3 has been synthesized for photocatalyst and photo-electrocatalyst Methyl Orange (MO) Violet (MV) degradation using a visible light source. aims the research were to study influence pH solution, iradiation time kinetics MO MV photodegradation, voltage photoelectrodegradation MV. Composite was by sol-gel process with Titanium Tetraisopropoxide (TTIP) solution Pb(NO3)2 powder as precursors. characterized X-ray difractometer FTIR spectrometer. diffractogram showed peaks at 2θ = 26.507o characteristic diffraction Graphite, 31.838o 39.294o those PbTiO3. spectrum exhibits vibration TiO2 609.5 – 420.5 cm-1 Pb-O 1337.66 until 1395.56 cm-1. photodegradation results that can degrade optimally 3. levels 90.33% 88.26% 30 min radiation, respectively. following first-order reaction rate constant 0.4445 min-1 0.4244 min-1, Meanwhile, 96.50% 10 volts 11, while 95.14% 7. When compared previous research, this result also shows excellent under irradiation. So use lights provides an advantage over UV light.