Abstract
An S-scheme photocatalyst combining trititanate nanotubes and dopamine was prepared under different pH conditions resulting in tailored energy level modification and a molecularly tunable heterostructure. We have found that the initial pH of the reaction has a profound effect on the product and activity for water splitting, and have investigated the structure of the surface coating prepared by the different reactions occurring under these conditions by powder X-Ray diffraction, solid state NMR and UV–vis spectroscopy. The best sample for hydrogen production was prepared under pH 12 conditions and had a hydrogen production rate of 590 µmolg-1h−1. This simple organic modification can effectively create an s-scheme heterojunction and is a widely applicable and facile method of doing so.
Original language | English |
---|---|
Journal | Journal of Industrial and Engineering Chemistry |
DOIs | |
Publication status | Published - 20 Dec 2024 |
Keywords
- S-scheme photocatalyst
- Polydopamine
- Nanomaterials
- Hydrogen generation
- Trititanate nanotubes
- Molecularly tunable heterostructure