US 12,441,622 B2
Modified titanium dioxide nanomaterial and preparation method and application thereof
Jirui Hou, Beijing (CN); and Zhuo Lu, Beijing (CN)
Assigned to CHINA UNIVERSITY OF PETROLEUM—BEIJING, Beijing (CN)
Filed by CHINA UNIVERSITY OF PETROLEUM—BEIJING, Beijing (CN)
Filed on May 30, 2024, as Appl. No. 18/679,115.
Claims priority of application No. 202410160586.1 (CN), filed on Feb. 4, 2024.
Prior Publication US 2025/0250180 A1, Aug. 7, 2025
Int. Cl. C01G 23/047 (2006.01); C09K 8/58 (2006.01)
CPC C01G 23/047 (2013.01) [C09K 8/58 (2013.01); C01P 2002/01 (2013.01); C01P 2002/72 (2013.01); C01P 2002/82 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C09K 2208/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A preparation method of modified titanium dioxide nanomaterial, comprising the following steps: 1) mixing 1 part by weight of an anatase type titanium dioxide nanosheet with a solution containing 1 to 5 parts by weight of a coupling agent for reaction to obtain an intermediate; 2) adding 1 to 15 parts by weight of a fatty acid compound and 0.01 to 1 parts by weight of a catalyst into the intermediate for modification reaction to give a reaction product, and then washing and drying the reaction product to obtain the modified titanium dioxide nanomaterial;
wherein the coupling agent comprises at least one of a titanate coupling agent and a silane coupling agent, and the coupling agent contains one terminal amino group; and
wherein the fatty acid compound is a linear mono-saturated fatty acid with a carbon atom number of 8 to 26.