Photocatalytic reduction of platinum(II and IV) from their chloro complexes in a titanium dioxide suspension in the absence of an organic sacrificial reducing agent

- [PtCln(H2O)4−n]2−n (n = 0-3) is reduced in the absence of a sacrificial reducing agent.
- [PtCl4]2− is not reduced in the absence of a sacrificial reducing agent.
- Oxygen impedes the photocatalytic reduction of Pt(II)-chloride complexes.