In this work, an InVO 4 /TiO 2 heterojunction composite catalyst was successfully synthesized through a facile hydrothermal method. The structural and optical characteristics of InVO 4 /TiO 2 heterojunction composites are investigated using a variety of techniques, including powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and spectroscopy techniques. The addition of InVO 4 to TiO 2 considerably enhanced the photocatalytic performance in selective photo-oxidation of benzyl alcohol (BA). The 10 wt% InVO 4/ TiO 2 composite photocatalyst provided a decent 100% BA conversion with over 99% selectivity for benzaldehyde, and exhibited a maximum conversion rate of 3.03 mmol g -1 h -1 , which is substantially higher than bare InVO 4 and TiO 2 . The excellent catalytic activity of the InVO 4/ TiO 2 photocatalyst is associated with the successful assembly of heterostructures, which promotes the charge separation and transfer between InVO 4 and TiO 2 .