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公开(公告)号：US20230141455A1
公开(公告)日：2023-05-11
申请号：US17730877
申请日：2022-04-27
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sang Hoon KIM , Gun-hee MOON , Jongsik KIM
CPC classification number: B01J23/745 , B01J23/72 , B01J6/001 , B01J37/031 , B01J37/08 , B01J37/04 , B01J37/345
Abstract: The present disclosure relates to a catalyst that removes an organic compound by using a metal oxide catalyst and a preparation method thereof and a method for degradation of an organic compound using the same. Particularly, the present disclosure relates to a copper-iron oxide (Cu—Fe2O3) catalyst composition that is prepared by following steps of: adding a mixed solution of an iron (Fe) precursor and a copper (Cu) precursor to a precipitator solution (S1); obtaining precipitates by heating a solution prepared in the step S1 (S2); obtaining a metal oxalate by filtering the precipitates obtained in the step S2 (S3); drying the metal oxalate obtained in the step S3 (S4); and obtaining a copper-iron oxide catalyst by calcinating the metal oxalate subjected to the step S4 (S5) and a method for removal of an organic compound using the same.
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公开(公告)号：US20210300801A1
公开(公告)日：2021-09-30
申请号：US17115468
申请日：2020-12-08
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jongsik KIM , Heon Phil HA
Abstract: Provided is a catalyst for a Fenton system, and a method of preparing the same. The catalyst includes one or more species of d0-orbital-based or non-d0-orbital-based catalyst including NO3−/SO42−/H2PO4−/HPO42−/PO43− functional groups on the surface thereof. The method includes preparing a d0-orbital-based or non-d0-orbital-based transition metal oxide; and preparing a transition metal oxide catalyst comprising a NO3−, SO42−, H2PO4−, HPO42−, or PO43− functional group on the surface of the catalyst via nitrification, sulfation, or phosphorylation of the transition metal oxide.
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公开(公告)号：US20210402385A1
公开(公告)日：2021-12-30
申请号：US17324542
申请日：2021-05-19
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jongsik KIM , Heon Phil HA
Abstract: A metal oxide catalyst synthesized using supercritical carbon dioxide extraction is provided, wherein the metal oxide catalyst includes an active site containing at least one type of metal oxide and a support for loading the active site and the metal oxide is an oxide of a metal selected from the group consisting of transition metals (atomic number 21 to 29, 39 to 47, 72 to 79, or 104 to 108), lanthanide (atomic number 57 to 71), post-transition metals (atomic number 13, 30 to 31, 48 to 50, 80 to 84, and 112), and metalloids (atomic number 14, 32 to 33, 51 to 52, and 85) in the periodic table, and a combination thereof.
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公开(公告)号：US20210331141A1
公开(公告)日：2021-10-28
申请号：US17138131
申请日：2020-12-30
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jongsik KIM , Heon Phil HA , Dong-Wook KWON
IPC: B01J23/10 , B01J23/847 , B01D53/94
Abstract: Provided are catalysts for reduction of nitrogen oxides including an active site including lanthanum vanadate represented by at least one of Formula 1 and Formula 2 and a support carrying the active site. LaVO4 (wherein LaVO4 is polymorphous and has a tetragonal or monoclinic crystal structure) Formula 1 LaV3O9 (wherein LaV3O9 has a monoclinic crystal structure). Formula
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