Publications by authors named "Jonggu Kim"
Article Synopsis
- The study examined how well pristine pine sawdust biochar (PSB) and post-modified PSB with Mg/Al layered double hydroxides (PSB-LDH) adsorb the azo dyes Methyl Orange (MO) and Sunset Yellow FCF (SYF).
- Despite having a lower specific surface area, PSB-LDH showed significantly better adsorption capacity for both dyes compared to PSB, indicating the successful functionalization of LDH.
- The adsorption kinetics were identified as pseudo-second-order chemisorption, with PSB-LDH demonstrating strong reusability (over 81.2%) even after multiple cycles of dye removal.
Concentrations of organophosphate flame retardants (OPFRs), which are used in various plastic products, were analyzed in house dust samples collected from three Korean cities (Suwon, n = 23; Jeonju, n = 20; Kunsan, n = 42). OPFRs, including tris (2-chloroethyl) phosphate (TCEP), tris (2-chloroisopropyl) phosphate (TCPP), and tris (1,3-dichloro-2-propyl) phosphate (TDCPP), were detected in 95%-100% of the samples analyzed, suggesting the widespread use of these compounds in Korea. The levels of TCEP, TCPP, and TDCPP in Suwon, Jeonju, and Kunsan ranged from the limit of quantitation to 46,000, 28,000, and 2400 ng/g, respectively.
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