公开(公告)号：US20240417252A1

公开(公告)日：2024-12-19

申请号：US18236489

申请日：2023-08-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jee Hye BYUN ,  Dong Ki LEE

IPC: C01B15/026

Abstract: The present invention relates to an organic working solution for photochemical hydrogen peroxide production, and a method for producing hydrogen peroxide by photo-autoxidation utilizing the organic working solution.
Specifically, the present invention relates to a method for producing hydrogen peroxide from an organic working solution in which oxidation of an aromatic alcohol and reduction of oxygen occur through photo-autoxidation of an aromatic carbonyl compound contained in the organic working solution, and the reduced oxygen.

公开(公告)号：US20220154012A1

公开(公告)日：2022-05-19

申请号：US17234800

申请日：2021-04-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jee Hye BYUN ,  Seong Pil JEONG

IPC: C09D5/24 ,  B05D1/00 ,  C09D165/00 ,  C08J7/04 ,  C08J7/044 ,  H01B5/14

Abstract: The present disclosure relates to a porous polymer actuator which maintains the porous structure of the polymer actuator by forming a conductive polymer layer on a commercially available porous polymer separation membrane by vapor-phase polymerization and is capable of improving fast responsiveness to organic solvents and durability by ensuring structural anisotropy, and a method for fabricating the same. The porous polymer actuator according to the present disclosure includes: a porous polymer separation membrane having pores; and a conductive polymer layer coated on one surface and in the pores of the porous polymer separation membrane, wherein the porous polymer actuator has a gradient wherein the amount of the conductive polymer coated in the pores decreases from the one surface of the porous polymer separation membrane toward the other surface.

公开(公告)号：US20220135722A1

公开(公告)日：2022-05-05

申请号：US17103381

申请日：2020-11-24

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jee Hye BYUN ,  Eunhoo JEONG ,  Seok Won HONG

IPC: C08F259/08 ,  C08J5/22 ,  B01D71/34 ,  B01D69/12 ,  B01D67/00 ,  B01D65/08 ,  C02F1/44

Abstract: The present disclosure relates to a conjugated polyelectrolyte-grafted membrane, which is obtained by fixing a conjugated polyelectrolyte (CPE) capable of generating active oxygen under visible light irradiation to a membrane through crosslinking, and can remove contaminants in water, while reducing bio-fouling on the surface of the membrane, by generating active oxygen through a photocatalytic reaction of the conjugated polyelectrolyte (CPE), as well as to a method for manufacturing the same. The method for manufacturing a conjugated polyelectrolyte-grafted membrane includes the steps of: preparing a conjugated polyelectrolyte (CPE); coating a conjugated polyelectrolyte (CPE) on the surface of a membrane; and carrying out crosslinking of the conjugated polyelectrolyte (CPE) with the surface of the membrane.

公开(公告)号：US20240375955A1

公开(公告)日：2024-11-14

申请号：US18236475

申请日：2023-08-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jee Hye BYUN ,  Dong Ki LEE ,  Byeong Cheul MOON ,  Bayarkhuu BOLORMAA

IPC: C01B15/026 ,  B01J31/06 ,  B01J35/00

Abstract: The present invention relates to a method and process for preparing hydrogen peroxide, and more particularly, to a photochemical hydrogen peroxide preparation process performed by combining photoautoxidation and photocatalytic reactions in an organic reaction solution to which a catalytic amount of water is added using solar light as a main energy source.

公开(公告)号：US20240174535A1

公开(公告)日：2024-05-30

申请号：US18331396

申请日：2023-06-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jae Woo CHOI ,  Kyung-Won JUNG ,  Jee Hye BYUN ,  Youngkyun JUNG ,  Boram YANG

IPC: C02F1/52 ,  C01C3/12 ,  C02F1/30

CPC classification number: C02F1/5236 ,  C01C3/12 ,  C02F1/30 ,  C02F2101/38

Abstract: The present disclosure relates to a Prussian blue-based coagulant and a microplastic coagulation method using the same, which may effectively coagulate microplastics having a size of less than 20 μm or nanoplastics and implement an environmentally harmless coagulation process, and the Prussian blue-based coagulant according to the present disclosure refers to Prussian blue being used as a coagulant for microplastics present in a water-system environment.