Jeehyeong Khim
Korea University · 環境科学
研究室紹介
Professor Jeehyeong Khim's research lab specializes in the design and synthesis of advanced functional nanomaterials, with a focus on mesoporous and core–shell structured materials for environmental and energy applications. The lab primarily investigates sonocatalytic degradation of organic pollutants using tailored TiO₂-based composites, emphasizing high efficiency, stability, and recyclability. Key research directions include the development of magnetic mesoporous oxides and carbon–titania hybrids through controlled synthesis methods such as evaporation-induced co-assembly.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15Acoustic cavitation concentrates and releases a very large amount of energy in localized areas, which can be used for many physical and chemical processes. Even though acoustic cavitation has been studied widely for decades, only few studies have been devoted to optimization of medium to large scale reactors. In this study, the effect of ultrasound irradiation distance on the sonochemical activity has been investigated in 36 and 108 kHz cylindrical sonoreactors with various liquid heights rangin
Uniform core–shell structured magnetic mesoporous TiO<sub>2</sub> as a highly efficient and stable sonocatalyst for the degradation of bisphenol-A.
The effect of ultrasound on the conventional mechanical soil-washing process was investigated. To determine the optimal frequency for maximum efficiency, tests were conducted with aluminum foils under four frequencies including 35, 72, 110, and 170 kHz. It is known that the physical effects generated during acoustic cavitation damage the foil by causing pits and holes. The sonication at 35 kHz resulted in maximum damage to the aluminum foil as compared to that observed at other frequencies. Base