Patents by Inventor Rong-Cai Xie

Rong-Cai Xie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Co-doped titanium oxide foam and water disinfection device
    Patent number: 9242873
    Abstract: A quaternary oxide foam, comprises an open-cell foam containing (a) a dopant metal, (b) a dopant nonmetal, (c) titanium, and (d) oxygen. The foam has the advantages of a high surface area and a low back pressure during dynamic flow applications. The inactivation of Escherichia coli (E. coli) was demonstrated in a simple photoreactor.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: January 26, 2016
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Jian-Ku Shang, Pinggui Wu, Rong-Cai Xie
  • Quaternary oxides and catalysts containing quaternary oxides
    Patent number: 8541337
    Abstract: A quaternary oxide includes a dopant metal, a dopant nonmetal, titanium, and oxygen. The atomic ratio of titanium, oxygen and dopant nonmetal may be 1:0.5-1.99:0.01-1.5. Quaternary oxides may be used in catalytic compositions, in coatings for disinfecting surfaces and in coatings for self-cleaning surfaces. A method of making a quaternary oxide includes combining ingredients including a titanium source, a dopant nonmetal source, a dopant metal salt, and a polar organic solvent to form a reaction mixture; and heating the reaction mixture.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: September 24, 2013
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Rong-Cai Xie, Jian-Ku Shang, Pinggui Wu
  • CO-DOPED TITANIUM OXIDE FOAM AND WATER DISINFECTION DEVICE
    Publication number: 20110311392
    Abstract: A quaternary oxide foam, comprises an open-cell foam containing (a) a dopant metal, (b) a dopant nonmetal, (c) titanium, and (d) oxygen. The foam has the advantages of a high surface area and a low back pressure during dynamic flow applications. The inactivation of Escherichia coli (E. coli) was demonstrated in a simple photoreactor.
    Type: Application
    Filed: December 18, 2008
    Publication date: December 22, 2011
    Inventors: Jian-Ku Shang, Pinggui Wu, Rong-Cai Xie
  • Quaternary oxides and catalysts containing quaternary oxides
    Patent number: 7901660
    Abstract: A quaternary oxide includes a dopant metal, a dopant nonmetal, titanium, and oxygen. The atomic ratio of titanium, oxygen and dopant nonmetal may be 1:0.5-1.99:0.01-1.5. Quaternary oxides may be used in catalytic compositions, in coatings for disinfecting surfaces and in coatings for self-cleaning surfaces. A method of making a quaternary oxide includes combining ingredients including a titanium source, a dopant nonmetal source, a dopant metal salt, and a polar organic solvent to form a reaction mixture; and heating the reaction mixture.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: March 8, 2011
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Rong-Cai Xie, Jian-Ku Shang, Pinggui Wu
  • Nanoparticles containing titanium oxide
    Patent number: 7521394
    Abstract: A titanium oxide nanoparticle includes anatase titanium oxide, and may be a nanofiber having a minimum dimension less than 200 nanometers and having an aspect ratio greater than 20:1. A titanium oxide nanoparticle including anatase titanium oxide may include a dopant metal and/or a dopant nonmetal, and may be in a form other than a nanosphere. A method of making nanoparticles includes heating a reaction mixture in an autoclave, where the reaction mixture includes a titanium source and a polar organic solvent.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: April 21, 2009
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Rong-Cai Xie, Jian-Ku Shang, Pinggui Wu
  • NANOPARTICLES CONTAINING TITANIUM OXIDE
    Publication number: 20070202334
    Abstract: A titanium oxide nanoparticle includes anatase titanium oxide, and may be a nanofiber having a minimum dimension less than 200 nanometers and having an aspect ratio greater than 20:1. A titanium oxide nanoparticle including anatase titanium oxide may include a dopant metal and/or a dopant nonmetal, and may be in a form other than a nanosphere. A method of making nanoparticles includes heating a reaction mixture in an autoclave, where the reaction mixture includes a titanium source and a polar organic solvent.
    Type: Application
    Filed: December 22, 2006
    Publication date: August 30, 2007
    Inventors: Rong-Cai Xie, Jian-Ku Shang, Pinggui Wu
  • QUATERNARY OXIDES AND CATALYSTS CONTAINING QUATERNARY OXIDES
    Publication number: 20070190765
    Abstract: A quaternary oxide includes a dopant metal, a dopant nonmetal, titanium, and oxygen. The atomic ratio of titanium, oxygen and dopant nonmetal may be 1:0.5-1.99:0.01-1.5. Quaternary oxides may be used in catalytic compositions, in coatings for disinfecting surfaces and in coatings for self-cleaning surfaces. A method of making a quaternary oxide includes combining ingredients including a titanium source, a dopant nonmetal source, a dopant metal salt, and a polar organic solvent to form a reaction mixture; and heating the reaction mixture.
    Type: Application
    Filed: December 22, 2006
    Publication date: August 16, 2007
    Inventors: Rong-Cai Xie, Jian-Ku Shang, Pinggui Wu