US 11,944,957 B2
Glass fiber filter element for visible light photocatalysis and air purification and preparation method thereof
Heping Zeng, Chongqing (CN); Mengyun Hu, Chongqing (CN); and Guang Feng, Chongqing (CN)
Assigned to CHONGQING INSTITUTE OF EAST CHINA NORMAL UNIVERSITY, Chongqing (CN); ROI OPTOELECTRONICS TECHNOLOGY CO, LTD., Shanghai (CN); and EAST CHINA NORMAL UNIVERSITY, Shanghai (CN)
Filed by Chongqing Institute of East China Normal University, Chongqing (CN); ROI Optoelectronics Technology CO, LTD., Shanghai (CN); and East China Normal University, Shanghai (CN)
Filed on Nov. 17, 2021, as Appl. No. 17/529,014.
Claims priority of application No. 202011283198.0 (CN), filed on Nov. 17, 2020.
Prior Publication US 2022/0152592 A1, May 19, 2022
Int. Cl. B01J 23/50 (2006.01); A61L 9/18 (2006.01); B01D 39/20 (2006.01); B01D 46/00 (2022.01); B01D 53/88 (2006.01); B01J 21/18 (2006.01); B01J 23/04 (2006.01); B01J 23/06 (2006.01); B01J 35/23 (2024.01); B01J 35/39 (2024.01); B01J 35/58 (2024.01); B01J 37/02 (2006.01); B01J 37/10 (2006.01); C03C 25/1095 (2018.01); C03C 25/16 (2006.01); C03C 25/46 (2006.01); C03C 25/47 (2018.01)
CPC B01J 23/50 (2013.01) [A61L 9/18 (2013.01); B01D 39/2024 (2013.01); B01D 46/0001 (2013.01); B01D 46/0028 (2013.01); B01D 53/885 (2013.01); B01J 21/18 (2013.01); B01J 23/04 (2013.01); B01J 23/06 (2013.01); B01J 35/23 (2024.01); B01J 35/39 (2024.01); B01J 35/58 (2024.01); B01J 37/0219 (2013.01); B01J 37/0236 (2013.01); B01J 37/10 (2013.01); C03C 25/1095 (2013.01); C03C 25/16 (2013.01); C03C 25/46 (2013.01); C03C 25/47 (2018.01); A61L 2209/14 (2013.01); B01D 2239/0258 (2013.01); B01D 2239/0407 (2013.01); B01D 2239/0442 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0636 (2013.01); B01D 2239/064 (2013.01); B01D 2239/10 (2013.01); B01D 2255/104 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20792 (2013.01); B01D 2255/802 (2013.01); B01D 2257/708 (2013.01); B01D 2279/65 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A glass fiber filter element for visible light photocatalysis and air purification, comprising:
4 to 7 wt % of nanoparticles comprising at least one selected from zinc oxide, graphene oxide, titanium oxide, and reduced graphene oxide,
2 to 7 wt % of silver nanowires,
3 to 12 wt % of an adhesive system, and
78 to 91 wt % of a glass fiber mat,
based on a total weight of the glass fiber filter element,
wherein the glass fiber mat is made of at least two glass fibers with different diameters, and the diameters are in a range of 0.15 to 3.5 μm, the nanoparticles have a particle size from 1 to 200 nm, and the silver nanowires have a diameter of 15 to 50 nm, and
wherein the glass fiber mat has a three-dimensional network porous structure, and the glass fibers with different diameters are mutually interlaced.