PHOTOCATALYST AND GUARDRAIL CAPABLE OF REMOVING NITROGEN OXIDES

Title:

PHOTOCATALYST AND GUARDRAIL CAPABLE OF REMOVING NITROGEN OXIDES

Document Type and Number:

WIPO Patent Application WO/2019/245149

Kind Code:

A1

Abstract:

The present invention relates to a photocatalyst and a guardrail capable of removing NOx. The photocatalyst is a titanium dioxide (TiO2) photocatalyst having lead (Pb), as a necessary metal element, and one element selected from sodium (Na), calcium (Ca) and nickel (Ni), as a selected metal element, simultaneously doped in a titanium dioxide lattice structure; and the guardrail has formed thereon a coating layer of a paint containing the photocatalyst. According to the present invention, the photocatalyst exhibits an excellent NOx removal effect, and the guardrail effectively removes NOx in, especially, vehicle emissions, and thus a particular effect is achieved whereby a pleasant and hygienic environment may be provided to a driver.

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Inventors:

YU CHEOL (KR)

Application Number:

PCT/KR2019/004727

Publication Date:

December 26, 2019

Filing Date:

April 19, 2019

Export Citation:

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Assignee:

CARIS CO LTD (KR)
YU CHEOL (KR)

International Classes:

B01J35/00; B01J21/06; C09D7/61; E01F15/04

Foreign References:

JP2007039270A	2007-02-15
KR20130025536A	2013-03-12
KR101930714B1	2018-12-19

Other References:

YU , JICUO: "Photocatalytic Activity and Characterization of the Sol-Gel Derived Pb-Doped TiO2 Thin Films", JOURNAL OF SOL-GEL SCIENE AND TECHNOLOGY, vol. 24, 2002, pages 39 - 48, XP001128690, DOI: 10.1023/A:1015109515825
JOURNAL OF THE KOREA ACADEMIA-INDUSTRIAL COOPERATION SOCIETY, vol. 11, no. 9, 2010, pages 3578 - 3582
LIN, YANMING: "Enhanced optical absorption and photocatalytic activity of anatase TiO2 through (Si,Ni) codoping", APPLIED PHYSICS LETTERS, 2012, pages 062106 - 1-5

Attorney, Agent or Firm:

YIM, Hoon-Bin (KR)

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