In the present work, pure BiFeO3 (BFO) particles were synthesized by sol-gel method and mixed with carbon fibre to form composites (x%CFs-BFO, where x corresponds 0, 4, 8 10 wt.%) hydrothermal treatment at 150?C. The resulting composite powders characterized X-ray diffraction, Raman spectroscopy, nitrogen adsorption/desorption isotherm scanning electron microscopy (SEM-EDX). used for gas sensor...