Heterostructured In 2 O 3 /BiOCl powders were synthesized by chemical coprecipitation method at room temperature followed by thermal treatment at 400°C for 2h. The TEM results confirmed the formation of sheet-like BiOCl nanostructures with the thickness of ca. 5–7nm. In order to investigate the effect of In 2 O 3 on the photocatalytic activity of heterostructured powders, the amount of In 2 O 3 was varied from 0wt% to 14wt%. Adsorption and photocatalytic activity of the samples were evaluated for the degradation of Rhodamine B (RhB) in the dark and under visible light irradiation, respectively. The heterostructured In 2 O 3 /BiOCl powders showed high adsorption capacity and enhanced photocatalytic activity compared to P25 and pure BiOCl. Based on the results obtained in this study, the mechanism for the enhancement of photocatalytic activity of heterostructured In 2 O 3 /BiOCl powders is discussed. 10wt% In 2 O 3 /BiOCl composite also exhibited good cycle performance for the degradation of RhB under visible light irradiation.