TEMPO-oxidized nanofibrillated cellulose (NFC) was isolated from rice straw.
Supramolecular modification of NFC surface was carried out by terpyridine–metal complexes (M–Tpy).
NFC–M–Tpy Films with different optical properties could be prepared.
NFC–M–Tpy Films with good antimicrobial and tensile strength properties could be prepared.
NFC–M–Tpy was used for paper coating to improve paper properties.