公开(公告)号：US20230312352A1

公开(公告)日：2023-10-05

申请号：US18012772

申请日：2021-06-30

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY ,  NF CO., LTD.

Inventor： Jeong Kwon SUH ,  Ji Sook HONG ,  Sang Kon LEE ,  Jae Hoon LEE

IPC: C01B32/318 ,  A01N59/00

CPC classification number: C01B32/318 ,  A01N59/00 ,  C01P2004/32 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/90

Abstract: The present invention provides a hyper-branched polymer having a three-dimensional structure, which is applicable to treatment of harmful substances in the atmosphere and has antibacterial activity, as well as a method for manufacturing the same. Further, the present invention provides an antibacterial spherical activated carbon which is ultimately obtained using the hyper-branched polymer as a precursor. The antibacterial spherical activated carbon, which is the final product according to the present invention, may induce a chemical bonding of ion bonds in an antibacterial component to a carrier without use of a separate binder, thereby stably immobilizing the antibacterial component. Furthermore, it is possible to adjust a loading amount of the antibacterial component as well as a specific surface area of the carrier through a simple operation. Moreover, the present invention enables uniform distribution of the antibacterial component on the spherical activated carbon at the atomic level, and has an advantage in that a high-strength antibacterial spherical activated carbon can be manufactured without elution and/or loss of antibacterial component even when using the activated carbon of the present invention for water treatment. Furthermore, effects of increasing the antibacterial performance by adsorption of organic matter in pores of the activated carbon that has been developed through incompatibility processing-carbonization-activation processes may also be expected. Therefore, the antibacterial spherical activated carbon prepared by the present invention is applicable to not only the removal of harmful substances such as SOx, NOx, VOC, etc. in the atmosphere but also an air purifier using antibacterial ability of the antibacterial material itself. In particular, the present material can be applied to all air cleaning systems requiring antibacterial functions because a large amount of antibacterial component can be uniformly supported on the spherical activated carbon, and eventually, the material has a perfectly spherical shape with a uniform surface and high strength so as to attain high organic matter removal efficiency.

公开(公告)号：US20210402375A1

公开(公告)日：2021-12-30

申请号：US17289226

申请日：2019-10-31

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Jeong Kwon SUH ,  Ji Sook HONG ,  Iljeong HEO

IPC: B01J21/18 ,  B01J23/34 ,  B01J35/10 ,  B01J37/08 ,  B01J37/02 ,  C01B13/02 ,  B01J35/08 ,  B01J35/02

Abstract: Disclosed herein are an activated carbon catalyst for hydrogen peroxide decomposition, a preparation method thereof and a hydrogen peroxide decomposition method using the same. The activated carbon catalyst for hydrogen peroxide decomposition, provided in an aspect of the present invention may be easily prepared through the carbonization and activation of an ion exchange resin, and safer and higher decomposition efficiency of hydrogen peroxide may be achieved than the conventional catalyst for hydrogen peroxide decomposition through the control of the manganese content and pore properties in the catalyst.