Výsledky vyhledávání - "Chuhyung Kim"

Solar photoelectrochemical synthesis of electrolyte-free H2O2 aqueous solution without needing electrical bias and H2

Autor: B. Kim, Chuhyung Kim, Wonyong Choi, Chuan Xia, Haotian Wang, Pedro J. J. Alvarez, Tae Hwa Jeon

Publikováno v: Energy & Environmental Science. 14:3110-3119

The conventional synthesis of hydrogen peroxide (H2O2) such as heterogeneous catalytic and electrochemical processes requires H2 and O2 as reagents, costly noble metals, and organic solvents, which are energy/waste-intensive and hazardous. An alterna

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1b064c51ca77bf2be3ed2d7c24fc1bf8
https://doi.org/10.1039/d0ee03567j

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Two-dimensional RuO2 nanosheets as robust catalysts for peroxymonosulfate activation

Autor: Chuhyung Kim, Seong Ju Hwang, Jaesang Lee, Jonghun Lim, Jang Mee Lee, Wonyong Choi

Publikováno v: Environmental Science: Nano. 6:2084-2093

This study explored for the first time the application of two-dimensional (2D) ruthenium oxide (RuO2) nanosheets (NSs) for organic decomposition through peroxymonosulfate (PMS) activation. RuO2 NSs outperformed not only the corresponding RuO2 nanopar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e4bbb0fc2b8703a2b931ea930858a20
https://doi.org/10.1039/c9en00500e

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Fe2O3 nanorods on carbon nanofibers induce spontaneous reductive transformation of inorganic contaminants in ambient aerated water

Autor: Wonyong Choi, Soonhyun Kim, Yiseul Park, Chuhyung Kim, Jonghun Lim

Publikováno v: Chemical Engineering Journal. 429:132108

This work reports an unconventional example that Fe2O3 nanorods loaded on carbon nanofiber sheet (Fe2O3/CNF) enable the spontaneous reductive transformation of recalcitrant inorganic contaminants (e.g., CrO42-, Fe(CN)63-, IO3-, HSO5-, ClO3-, BrO3-, A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7bc04c37ea70b5fb6f6efeccb9098b85
https://doi.org/10.1016/j.cej.2021.132108

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Hydrogenated heterojunction of boron nitride and titania enables the photocatalytic generation of H2 in the absence of noble metal catalysts

Autor: Tae Hwa Jeon, Zuoli He, Chuhyung Kim, Wonyong Choi

Publikováno v: Applied Catalysis B: Environmental. 237:772-782

The increasing need for new materials capable of solar fuel production is central to the development of green energy economy. Utilizing solar energy for hydrogen generation is a great challenge due to inefficient light utilization and fast charge rec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf49a01690bc5134c5dad1ac36f38658
https://doi.org/10.1016/j.apcatb.2018.06.008

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Activation of peroxymonosulfate on visible light irradiated TiO2 via a charge transfer complex path

Autor: Chuhyung Kim, Gun-hee Moon, Taicheng An, Yoosang Jo, Wonyong Choi, Jaesang Lee

Publikováno v: Chemical Engineering Journal. 346:249-257

Photo-induced activation of peroxymonosulfate (PMS) has been enabled by either the direct photolysis of the peroxide bond or the semiconductor bandgap-excited photocatalysis. Whereas the existing approaches utilize UV light, this study first studied

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b010cceaf7e9395effbc0d11fc0f04e8
https://doi.org/10.1016/j.cej.2018.03.150

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Visible light-induced catalytic activation of peroxymonosulfate using heterogeneous surface complexes of amino acids on TiO2

Autor: Dong-yeob Kwak, Chuhyung Kim, Detlef W. Bahnemann, Fabian Sieland, Jonghun Lim, Wonyong Choi

Publikováno v: Applied Catalysis B: Environmental. 225:406-414

Peroxymonosulfate (PMS) is being extensively investigated as an eco-friendly oxidant and various activation methods of PMS have been investigated. Here we demonstrated a new method of catalytic PMS activation, which employed amino acids as both a vis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5c8e39780279ea3c8df8f03932997daf
https://doi.org/10.1016/j.apcatb.2017.12.025

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Formation of heterostructures via direct growth CN on h-BN porous nanosheets for metal-free photocatalysis

Autor: Sen Lin, Chuhyung Kim, Lihua Lin, Xinchen Wang, Wonyong Choi, Tae Hwa Jeon, Zuoli He

Publikováno v: Nano Energy. 42:58-68

Many recent advances in creating heterostructures based on 2D materials have opened new possibilities in catalysis. This study prepared a new 2D hybrid photocatalyst (CBN-x) consisting of CN and h-BN using low-cost precursors (urea and boric acid). T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b644801e3a51ac16efb6230d6c4a87e
https://doi.org/10.1016/j.nanoen.2017.10.043

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Poly(4-vinylphenol) as a new stable and metal-free sensitizer of titania for visible light photocatalysis through ligand-to-metal charge transfer process

Autor: Wonyong Choi, Chuhyung Kim, Guan Zhang

Publikováno v: Catalysis Today. 281:109-116

In this study, poly (4-vinylphenol) (denoted as PVP) was firstly used as a stable and low-cost sensitizer of titania for visible light photocatalysis. The PVP thin-layer was readily grafted on TiO 2 (PVP/TiO 2 ) through surface complexation between t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::193f75548356da9f25b1ae0d3427c771
https://doi.org/10.1016/j.cattod.2016.06.048

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