NOX (X = 1 or 2) discharged from stationary/mobile sources are often believed as deleterious, anthropogenic originators of ultrafine particulate matters (PM2.5) because NOX can undergo a sequence of SO2-aided photochemical transformative phases to finally become PM2.5, which is an air pollutant.
A research team from South Korea has recently corrected the general idea of NOX (vide supra) by suggesting an interesting way to make use of NOX in a creative manner.
According to the Korea Institute of Science and Technology (KIST), a research team with principal investigators of Dr. Jongsik Kim and Dr. Heon Phil Ha from the institute has partnered with a research group headed by Prof. Keunhong Jeong in the Korea Military Academy (KMA) to graft NO3 species on a metal oxide through chemical fusion between NOX and O2 under low thermal energy (150 C).
The ensuing supported NO3 species can subsequently be radicalized to produce NO3• analogs that act as degraders of refractory organic substances found in wastewater.
Aqueous recalcitrant compounds that contain bisphenol A and phenolics are usually removed from water matrices through the process of sedimentation using coagulants or through degradation into H2O and COY (Y = 1 or 2) with the addition of OH shuttles such as H2O2, O3, etc.
However, these approaches need more stages to recover coagulants or will have short lifespans and/or chemical volatilities characteristic of •OH, H2O2, and O3, thus drastically hindering the sustainability...
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