▎ 摘　　要

NOVELTY - Method for preparing photocatalytic air purification rod-shaped silica particle composite fiber felt comprises (i) configuring the silica precursor solution; (ii) dispersing 5 mg/ml photocatalytic nanoparticles into 50 ml with deionized water, ultrasonically sonicating for 30 minutes, obtaining the dispersion liquid, immersing the fiber mat in the dispersion liquid for 5 minutes, ultrasonically processing, drying at 130 degrees C for 18 minutes, and repeating the immersion drying three times; and (iii) placing the fiber mat in the step (ii) into the silica precursor solution in the step (i) and placing into a microwave rapid reaction synthesizer for annealing to obtain a rod-shaped silica photocatalytic particle composite fiber mat. USE - The method is useful for preparing photocatalytic air purification rod-shaped silica particle composite fiber felt. ADVANTAGE - The method has more efficient capture of microbial particles in the air to achieve rapid photocatalytic response and increases the specific surface area of the original single ultrafine fiber, increases the contact area between the catalyst and the bacteria and microorganisms and the number of active sites participating in the redox reaction and achieves photocatalytic antibacterial inactivation.