▎ 摘　　要

rGO-BaSnO3 nanocomposite was prepared by hydrothermal route. The physicochemical properties were analyzed by spectroscopic analysis. From the results, the rod-like crumbled particles were well dispersed on rGO sheets. The optical bandgap was found to be 2.72 eV for BSG-10 which is comparatively lower than BS. The implementation of rGO makes an interfacial contact with BS facilitates e(-) transfer from BS to rGO, effectively suppresses the e (-)/h(+) pair recombination rate. The BSG-10 nanocomposite exhibits 94 % degradation efficiency under 180 min of visible light irradiation. The radical contributions involved in degradation process and the stability of the photocatalysts are also discussed.