Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Jeonggwan Kim"'
Autor:
Yonghyeon Lee, Seojoon Lee, Mingcan Cui, Jeonggwan Kim, Junjun Ma, Zhengchang Han, Jeehyeong Khim
Publikováno v:
Ultrasonics Sonochemistry, Vol 72, Iss , Pp 105412- (2021)
This study investigated the degradation of ibuprofen (IBP), an activated persulfate (PS), when subjected to ultrasonic (US) irradiation and mechanical mixing (M). The effects of several critical factors were evaluated, including the effect of rpm on
Externí odkaz:
https://doaj.org/article/3ef3b28b38cb4f7e850fad808c736bfa
Autor:
Jeonggwan Kim, Junjun Ma, Jongbok Choi, Yonghyeon Lee, Mingcan Cui, Younggyu Son, Jeehyeong Khim
Publikováno v:
Ultrasonics Sonochemistry. 52:326-335
A cost-effective method for treating oxalic acid (OA) during rare-earth extraction was developed using hydrodynamic cavitation (HC), ozone (O3), and persulfate (PS) (HC@PS@O3 process). The results showed that the optimal inlet pressure during HC was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fc36f88ecf4a70fdfd86e67151f7027
https://doi.org/10.1016/j.ultsonch.2018.12.004
https://doi.org/10.1016/j.ultsonch.2018.12.004
Autor:
Zhengchang Han, Mingcan Cui, Junjun Ma, Seo-Joon Lee, Jeonggwan Kim, Yonghyeon Lee, Jeehyeong Khim
Publikováno v:
Ultrasonics Sonochemistry
Ultrasonics Sonochemistry, Vol 72, Iss, Pp 105412-(2021)
Ultrasonics Sonochemistry, Vol 72, Iss, Pp 105412-(2021)
Highlights • Identification of US/M mechanism for PS activation. • Selection of optimal mechanical mixing using Sonochmeiluminescence in US/M system. • Observation of pH and temperature effects in US/M system using PS oxidizer. • Comparison o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4846740223e1dba182df2a35b061d686
https://pubmed.ncbi.nlm.nih.gov/33316732
https://pubmed.ncbi.nlm.nih.gov/33316732
Publikováno v:
Ultrasonics sonochemistry. 65
The use of a 20-kHz probe-type sonicator irradiating downward in a 500 mL vessel was optimized for the enhancement of the sonochemical activity in terms of the geometric and operational factors. These factors included the probe immersion depth (the v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32e857c53f92b72cb85a4e994e1bc0ed
https://pubmed.ncbi.nlm.nih.gov/32199254
https://pubmed.ncbi.nlm.nih.gov/32199254
Autor:
Jongbok Choi, Younggyu Son, Jeonggwan Kim, Yonghyeon Lee, Mingcan Cui, Jeehyeong Khim, Zhengchang Han
Publikováno v:
Journal of Cleaner Production. 193:748-758
Contamination of agricultural crops by toxic heavy metals (HMs) causes serious damage to the human body. In this study, soil stabilization method was selected and coal mine drainage sludge (CMDS), waste cow bones (WCB), and steel making slag (SMS) we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af879e03555ec9ade684bafa5f817bd0
https://doi.org/10.1016/j.jclepro.2018.05.105
https://doi.org/10.1016/j.jclepro.2018.05.105
Autor:
Jeonggwan Kim, Jongbok Choi, Min Jang, Mingcan Cui, Yonghyeon Lee, Yeomin Yoon, Jeehyeong Khim
Publikováno v:
Ultrasonics Sonochemistry. 43:193-200
In order to enhance sonocatalytic oxidation of a recalcitrant organic pollutant, rhodamine B (RhB), it is necessary to study the fundamental aspects of sonocatalysis. In this study, TiO2-incorporated nano-structured carbon (i.e., carbon nanotubes (CN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6508d2be727cafd6dd58ad0b1c1abdd5
https://doi.org/10.1016/j.ultsonch.2018.01.010
https://doi.org/10.1016/j.ultsonch.2018.01.010
Publikováno v:
Chemical Engineering Journal. 338:323-332
Bisphenol A (BPA) is an endocrine disruptor and is toxic at low concentrations. Furthermore, in order to oxidize BPA at the water treatment, an economical treatment method is required. This study was the first study to apply hydrodynamic cavitation/p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02cb480d2516f89a3e108c335575b53c
https://doi.org/10.1016/j.cej.2018.01.018
https://doi.org/10.1016/j.cej.2018.01.018
Publikováno v:
Ultrasonics Sonochemistry. 42:26-30
Peat-moss derived biochar was used as a sonocatalyst for the degradation of rhodamine B (RhB) at different ultrasonic frequencies (40 kHz and 300 kHz). The biochar was prepared by pyrolysis of peat-moss at 300 °C under N2-saturated conditions. High
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07617659fc15c9c99dd3430f3e971667
https://doi.org/10.1016/j.ultsonch.2017.11.005
https://doi.org/10.1016/j.ultsonch.2017.11.005
Publikováno v:
Journal of Hazardous Materials. 344:1116-1125
Degradation of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in real-field soil was conducted using an integrated photocatalysis-solvent migration system of BiVO4/Bi2O3 and n-hexane. The photocatalyst BiVO4/Bi2O3 was synthesized, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26479a675cda31e2ae5198e09c427313
https://doi.org/10.1016/j.jhazmat.2017.12.002
https://doi.org/10.1016/j.jhazmat.2017.12.002
Publikováno v:
Journal of Alloys and Compounds. 706:7-15
Herein, a series of novel BiVO4/graphene (GR)/Bi2O3 heterojunction composites with different GR loading were prepared via a facile chemical bath deposition method, followed by a calcination treatment in N2 atmosphere. The resultant composites possess
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2757ca1d84060b821b39175196f857a
https://doi.org/10.1016/j.jallcom.2017.02.232
https://doi.org/10.1016/j.jallcom.2017.02.232