US 12,280,362 B2
Bismuth iodide oxide / zinc oxide composite and preparation method therefor and application thereof in piezoelectric photocatalytic removal of organic pollutants
Jianmei Lu, Suzhou (CN); and Najun Li, Suzhou (CN)
Assigned to SOOCHOW UNIVERSITY, Suzhou (CN)
Appl. No. 17/624,111
Filed by SOOCHOW UNIVERSITY, Suzhou (CN)
PCT Filed Nov. 8, 2020, PCT No. PCT/CN2020/127394
§ 371(c)(1), (2) Date Dec. 30, 2021,
PCT Pub. No. WO2021/089031, PCT Pub. Date May 14, 2021.
Claims priority of application No. 201911089784.9 (CN), filed on Nov. 8, 2019.
Prior Publication US 2022/0347660 A1, Nov. 3, 2022
Int. Cl. B01J 23/06 (2006.01); B01J 23/18 (2006.01); B01J 27/06 (2006.01); B01J 35/00 (2006.01); B01J 35/23 (2024.01); B01J 35/39 (2024.01); B01J 37/03 (2006.01); B01J 37/04 (2006.01); C02F 1/32 (2023.01); C02F 1/72 (2023.01); C02F 101/34 (2006.01)
CPC B01J 27/06 (2013.01) [B01J 23/06 (2013.01); B01J 35/19 (2024.01); B01J 35/23 (2024.01); B01J 35/39 (2024.01); B01J 37/031 (2013.01); B01J 37/04 (2013.01); C02F 1/32 (2013.01); C02F 1/725 (2013.01); C02F 2101/345 (2013.01); C02F 2305/08 (2013.01); C02F 2305/10 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A bismuth iodide oxide/zinc oxide composite, wherein the preparation method of the bismuth iodide oxide/zinc oxide composite comprising the following steps:
1) annealing a conductive substrate spin-coated with a zinc oxide seed solution and adding it into a precursor solution for reaction to obtain a zinc oxide nanorod array;
2) placing the zinc oxide nanorod array into a bismuth iodide oxide precursor solution for reaction to obtain the bismuth iodide oxide/zinc oxide composite; and
wherein the bismuth iodide oxide/zinc oxide composite has a Bi:Zn molar ratio of 15%, a layered bismuth iodide oxide is loaded on a surface of the zinc oxide nanorod array, and the bismuth iodide oxide/zinc oxide composite degrades bisphenol in an aqueous solution after 90 minutes of piezoelectric photocatalytic degradation.