The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Dec. 02, 2005
Daocheng Pan, Changchun, CN;
Nana Zhao, Changchun, CN;
Qiang Wang, Changchun, CN;
Xiangling Ji, Changchun, CN;
Shichun Jiang, Changchun, CN;
Lijia an, Changchun, CN;
Daocheng Pan, Changchun, CN;
Nana Zhao, Changchun, CN;
Qiang Wang, Changchun, CN;
Xiangling Ji, Changchun, CN;
Shichun Jiang, Changchun, CN;
Lijia An, Changchun, CN;
Changchun Institute of Applied Chemistry Chines Academy of Sciences, Changchun, Jilin Province, CN;
Abstract
The present invention belongs to a method for preparing organic ligand-capped titanium dioxide nanocrystals, wherein the method comprises steps of using methyl titanate, ethyl titanate, n-propyl titanate, iso-propyl titanate, butyl titanate or titanium tetrachloride as a titanium source, and with capping by oleic acid or an organic capping agent, reacting the titanium source in an organic non-polar solvent with an aqueous alkaline substance solution in the interface at a temperature of 25 to 280° C. for 0.5 to 240 hrs, thus a transparent sol containing titanium dioxide nanocrystals is obtained, said the titanium dioxide nanocrystals have particle diameters of 1-20 nm. The preparing process has the features of mild reaction conditions and is a simpler and easier method with a shorter preparation period, thereby facilitating the industrialization.