Evaluation of bimetal doped TiO2 in dye fragmentation and its comparison to mono-metal doped and bare catalysts

- Bimetal doped TiO2 showed a higher reduction in band gap than mono-metal doping.
- Lower zeta-potential for bimetal doped TiO2 improved its stability in the aqueous media.
- Metal doping increased crystallite sizes and also the anatase phase of doped TiO2.
- Dye degradation even up to 99% through decarboxylation and sulphonation reactions.