The effects of the chemical composition of titanate nanotubes and solvent type on 3-aminopropyltriethoxysilane grafting efficiency

- Titanate nanotubes (TTNT) were modified with 3-aminopropyltriethoxysilane (APTES).
- Effects of TTNT sodium content and solvent on APTES grafting efficiency were studied.
- Aqueous ethanol was a more efficient reaction medium for functionalization of TTNT.
- Within aqueous ethanol TTNT with low sodium content were more efficiently grafted.
- Grafting of APTES on TTNT surface occurs through Ti-O-Si primary chemical bonding.