Photochemical transformations of tetrabromobisphenol A and related phenols in water

Kinetics of tetrabromobisphenol A (TBBPA) reactions with H2SO4, HNO3 and HCl: Implication for hydrometallurgy of electronic wastes

“…In pathway two, TBBPA was oxidized to form tribromobisphenol A via debromination. Similar transformation pathway has been observed in the photochemical behavior of TBBPA reported by Eriksson et al [25]. Barontini et al [26] investigated the thermal decomposition pathways of TBBPA and also proposed simultaneous occurrence of debromination reactions and ␤-cleavage reactions in thermal degradation of TBBPA.…”

Ferrate(VI) oxidation of tetrabromobisphenol A in comparison with bisphenol A

“…1). The t 1/2 for Fe(VI) reaction with TBBPA (1.7 s, pH 7.0) is magnitude lower than that of the permanganate (29.8 s, pH 7.0) (Pang et al, 2014), manganese dioxide (1.79 min, pH 4.5) (Lin et al, 2009) and photochemical (30 min, pH 7.1) (Eriksson et al, 2004), indicating that Fe(VI) treatment technology appears to be a promising tool for the removal of brominated flame retardant TBBPA in water.…”

“…R2 may react with water to form the product A, or substitution with the methanol cosolvent (stock solution was prepared in methanol) to yield the product B (Feng et al, 2013). The pathway of product A has been extensively reported in the oxidative degradation of TBBPA by permanganate, manganese dioxide, UV/Fenton, and UV irradiation (Eriksson et al, 2004;Lin et al, 2009;Zhong et al, 2012;Pang et al, 2014). For product B, this is probably not valid in a potential real water treatment.…”

Recent advances in the analysis of TBBPA/TBBPS, TBBPA/TBBPS derivatives and their transformation products

“…For the cleanup of nonwater samples, the most widely used methods were gel permeation chromatography (GPC), activated silica gel column, and Florisil [6,31]. Commercially available SPE tubes also have good applicability for the cleanup of residues extracted from soil, sediment, [14][15][16][17][18][19][20][21][22][23][24] and biota samples [32]. However, severalcommercial cartridges showed poor recoveries because target analytes were strongly absorbed by the sorbents of the cartridges and could not be adequately eluted [10].…”

“…Cumulative evidence suggests that abiotic degradation, including photolysis, oxidation, reduction, and radical reactions, are involved in TBBPA degradation [14][15][16]. As compared with abiotic reactions, biotic reactions are considered to be the main transformation pathways of TBBPA and can result in the presence of unknown brominated substances in environmental compartments [8,17,18].…”