公开(公告)号：US20250153136A1

公开(公告)日：2025-05-15

申请号：US18615762

申请日：2024-03-25

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jae Woo CHOI ,  Youngkyun JUNG ,  Kyung-Won JUNG ,  Yun LEE ,  Sujin YOON

IPC: B01J20/22 ,  B01D15/08 ,  B01J20/28

Abstract: The present invention relates to a metal-organic framework-polymer fiber-based adsorbent having a core-shell structure and a method for preparing the adsorbent, and a method for recovering a rare earth metal using the same, which result in having easy recovery of the adsorbent together with excellent characteristics of a maximum adsorption amount and an adsorption rate for the rare earth metal. The metal-organic framework-polymer fiber-based adsorbent having the core-shell structure according to the present invention is characterized in that the metal-organic framework is provided on a surface of a sodium polyacrylate (NaPA) fiber.

公开(公告)号：US20200249173A1

公开(公告)日：2020-08-06

申请号：US16745359

申请日：2020-01-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kang Bong LEE ,  Yun Sik NAM ,  Yeon Hee LEE ,  Sujin YOON

IPC: G01N21/78

Abstract: The present disclosure relates to a colorimetric sensor for detecting nickel ions using nanoprism etching, a method for producing the same, and a colorimetric detection method of nickel ions using the same. More specifically, the present disclosure relates to a colorimetric sensor for detecting nickel ions, which uses non-modified silver nanoprisms (AgNPRs), whose surfaces have not been modified, so that the nanoprisms are etched selectively only by nickel ions (Ni2+), leading to a color change and thus allowing to detect nickel ions (Ni2+), a method for producing the same, and a colorimetric detection method of nickel ions using the same.