Catalytic degradation of acetaminophen by Fe and N Co-doped multi-walled carbon nanotubes

Role of co-existing anions in non-radical and radical processes of carbocatalyzed persulfate activation for acetaminophen degradation

“…1d). 32,39 Therefore, these observations suggest that N was successfully doped on the main graphitic framework and that sp 3 -C-hybridized oxygen functionalities were also established on the graphitic layer. In Fig.…”

“…N-doped MWCNTs were prepared based on our previous studies. 32 Briefly, the optimum N precursor dicyandiamide (0.48 g) was dissolved in 50 mL ethanol, and 1 g of pristine MWCNT powder was added and dispersed into this solution while stirring. The mixture was constantly stirred at 80 °C and 10–12 h until the solvent evaporated.…”

“…1c). 32,39,40 Similarly, the N-MWCNT C 1s peak was also deconvoluted into four peaks at 284.09, 284.39, 285.63, and 289.84 eV, which corresponded to sp 2 C-C, sp 3 C-C, sp 2 C-N, and sp 3 C-N, respectively (Fig. 1d).…”

“…The decrease in the pH PZC after N-doping, i.e., N-MWCNT, may be attributed to the development of different oxygenated functional groups, which might increase the number of acidic functional groups. 32,34 3.2. Catalytic study 3.2.1.…”

A review on the degradation of acetaminophen by advanced oxidation process: pathway, by-products, biotoxicity, and density functional theory calculation

“…They detected hydroquinone, 1,4-benzoquinone, N -(3,4-dihydroxyphenyl)formamide, and 4-aminophenol, 4-methylbenzene-1,2-diol after 30 minutes of reaction. Pham et al 79 detected oxaloacetic acid and 4-nitrophenol were the major transformation products when Fe and N co-doped carbon nanotube system was applied. In this review, the by-products of 64 studies related to the oxidation of ACT from an aqueous medium by using different AOP systems were collected and summarized in the Table 3 .…”