Solar Light Driven Ultra-Fast Photodegradation of RhB Dye by Perovskite/G-C3N4 Nano-Composite

EasyChair Preprint 5787

Abstract

The recalcitrant and ubiquitous nature of toxic dyes in surface water urgently needs to be treated for decreasing hazardous effects and mitigating water scarcity for sustainability. The composites BiFeO₃/g-C₃N₄ and BiTiO₃/g-C₃N₄ prepared by sonication have shown higher photo-catalytic degradation of RhB dye by varying parameters such as initial concentration, pH of solution, agitation time and catalyst dose under solar light. The X-ray diffraction pattern showed retention of g-C₃N₄ structure after modification. The Fourier Transform IR spectra showed efficient attachment of perovskite with g-C₃N₄ and FESEM image shows the surface morphology of the samples_. The BiFeO₃/g-C₃N₄ and BiTiO₃/g-C₃N₄ composites exhibited highest photo-degradation of 99. % for RhB dye in a short span of 35min., 20 min at pH~3 than the pristine BiFeO₃ and BiTiO₃/g-C₃N₄ . The kinetics of the photocatalytic degradation for RhB followed a pseudo-first order rate for varying concentration and dose. Both BiFeO₃/g-C₃N₄ and BiTiO₃/g-C₃N₄ are prominent catalysts for  ultra-fast degradation of toxic dyes by using solar radiation

Keyphrases: Photodegradation, g-C3N4, toxic dye

@booklet{EasyChair:5787,
  author    = {Lopamudra Mohanty and Suresh Dash},
  title     = {Solar Light Driven Ultra-Fast Photodegradation of RhB Dye by Perovskite/G-C3N4 Nano-Composite},
  howpublished = {EasyChair Preprint 5787},
  year      = {EasyChair, 2021}}