The invention relates to a method for manufacturing a
zinc oxide-
cellulose nanocrystalline composite
fiber film with the antibacterial characteristic and the
photocatalytic degradation characteristic at the same time. The method includes the steps of enabling
microcrystalline cellulose to be reacted for 5 hours to 10 hours under the 40 DEG C-95 DEG C mixed acid condition, adjusting the pH value to seven after the reaction is finished, and obtaining
cellulose nanocrystalline
powder; (2) preparing suspension liquid with the
powder, mixing the suspension liquid with a
zinc salt water solution, dropwise adding a
sodium hydroxide solution at 30 DEG C to 95 DEG C, stirring to enable the mixture to be reacted for 5 min to 60 min after drop adding is finished, and carrying out washing and
drying to obtain cellulose nanocrystalline-
zinc oxide hybrid materials; (3) adding the materials and PHBV into organic solvents, raising the temperature to range 30 DEG C to 80 DEG C, and obtaining an electrostatic
spinning solution; (4) carrying out electrostatic
spinning on the electrostatic
spinning solution, and obtaining the zinc
oxide-cellulose nanocrystalline composite
fiber film. According to the method, the preparing process is simple, and the obtained
fiber film is a multifunctional full
biodegradation product and has the antibacterial characteristic and the
photocatalytic degradation characteristic.