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.

公开(公告)号：US20230339782A1

公开(公告)日：2023-10-26

申请号：US18064736

申请日：2022-12-12

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jae Woo CHOI ,  Kyung-Won JUNG ,  Youngkyun JUNG

IPC: C02F1/28 ,  C02F1/62

CPC classification number: C02F1/285 ,  C02F1/62 ,  C02F2101/20

Abstract: The present disclosure relates to a self-regenerable fibrous adsorbent for heavy metal adsorption, which is capable of adsorbing heavy metal ions in water, growing them into crystals and desorbing the grown heavy metal crystals on its own, and a method for preparing the same. The self-regenerable fibrous adsorbent for heavy metal adsorption according to the present disclosure is a fibrous polymer consisting of PAN and PMMA, wherein amine functional groups are immobilized on the surface of the PAN and hydroxyl groups (—OH) are immobilized on the surface of the PMMA.

公开(公告)号：US20210138422A1

公开(公告)日：2021-05-13

申请号：US16810229

申请日：2020-03-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sun CHOI ,  Youngkyun JUNG ,  Ung Su CHOI

IPC: B01J13/14

Abstract: Provided is a method of fabricating capsules. The method includes: forming droplets of a dispersed phase solution including a phase transition material, a carbon nanomaterial, and a first monomer by allowing the dispersed phase solution to pass through nozzle units provided at a porous membrane in a reaction tank including the porous membrane; migrating the droplets into a mobile phase material including a second monomer; and forming polymer shells at interfaces between the droplets and the mobile phase material by polymerization between the first monomer and the second monomer.