Title:
ZINC OXIDE NANOPARTICLE/REDUCED GRAPHENE OXIDE NANOCOMPOSITE PHOTOCATALYST WITH CONTROLLED SHAPE HAVING HIGH PHOTOCATALYTIC CHARACTERISTICS, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/022268
Kind Code:
A1
Abstract:
The present invention relates to a zinc oxide nanoparticle/reduced graphene oxide nanocomposite photocatalyst with a controlled shape having high photocatalytic characteristics and to a manufacturing method therefor. More specifically, the present invention provides a reduced graphene oxide nanocomposite photocatalyst with zinc oxide nanoparticles attached thereto, the photocatalyst comprising reduced graphene oxide and zinc oxide nanoparticles attached on the reduced graphene oxide. The zinc oxide nanoparticle/reduced graphene oxide nanocomposite photocatalyst with a controlled shape, manufactured according to the present invention, showed dye removal efficiencies of 98.8% and 97.7% for MB and RhB, respectively, in the UV irradiation at a low power of 40 W, and the photocatalyst has an effect of showing excellent reusability, such as, the dye removal efficiency of the photocatalyst being maintained at 96.0% when dye degradation was repeated 15 times.
Inventors:
SHIM JAE-JIN (KR)
NGUYEN VAN QUANG (KR)
NGUYEN VAN QUANG (KR)
Application Number:
PCT/KR2017/008024
Publication Date:
January 31, 2019
Filing Date:
July 25, 2017
Export Citation:
Assignee:
UNIV YEUNGNAM RES COOPERATION FOUNDATION (KR)
International Classes:
B01J23/06; B01J21/18; B01J35/00; B01J35/02; B01J37/00; B01J37/03; B01J37/16
Foreign References:
| KR20150131833A | 2015-11-25 | |||
| KR20150035052A | 2015-04-06 | |||
| US20130099196A1 | 2013-04-25 | |||
| CN105921112A | 2016-09-07 | |||
| KR20160063226A | 2016-06-03 |
Other References:
ZHOU XUN ET AL: "Hydrothermal preparation of ZnO-reduced graphene oxide hybrid with high performance in photocatalytic degradation", APPLIED SURFACE SCIENCE, vol. 258, no. 17, 26 February 2012 (2012-02-26), pages 6204 - 6211, XP028416342, ISSN: 0169-4332, DOI: 10.1016/j.apsusc.2012.02.131
Attorney, Agent or Firm:
TAEBAEK INTELLECTUAL PROPERTY LAW FIRM (KR)
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