Synthesis of solution processed f-CNT@Bi₂S₃ hybrid film coated linen fabric as a free-standing textile structured photo catalyst

Abstract

A unique metallic carbon hybrid film, synthesized with synchronized distribution of bismuth sulfide (Bi₂S₃) and exfoliated multiwall carbon nanotubes (MWCNTs), has been proposed for use as freestanding textile electrodes in photo catalysts. The defect-rich morphology of Bi₂S₃ nanowire decorated MWCNT hybrid enhances the photocatalytic activity, electronic properties, cyclic stability, and electron pathways. The proposed f-CNT@Bi₂S₃-hybrid linen fabric electrode demonstrated a defect-rich morphology synchronized with high electrical conductivity. These properties greatly enhanced the photocatalytic activity and electron transfer. The high photocatalytic activity is attributed to the synergistic effect of the high electron affinity of MWCNTs and the structural distortion caused by Bi₂S₃ nanowires. Degradation of methylene blue dye was accelerated owing to the elevated activity of Bi₂S₃ nanowires, which provides fast absorption of contaminants and reduction of oxidative species. Our proposed system of metallic carbon freestanding textile electrode opens the broad applications of textile-based photochemical devices.