Visible light photo-catalytic activity of C-PVA/TiO2 composites for degrading rhodamine B

- A novel VL photo-catalyst (C-PVA/TiO2) was obtained through a combining way of sol-gel and calcination methods.
- The adsorption capacity of C-PVA/TiO2 to rhodamine B was enhanced by exposing C-PVA on the surface.
- The photo-catalytic property of C-PVA/TiO2 was related to the aggragate states of C-PVA and TiO2 on the surface.