Monopersulfate oxidation of tetrabromobisphenol A by an iron(III)-phthalocyaninetetrasulfate catalyst coordinated to imidazole functionalized silica particles

• DOI: 10.1016/j.molcata.2015.02.003
• Publication Date: 2015-02-07T10:02:27Z
• Authors: Shohei Maeno; Qianqian Zhu; Masahide Sasaki; Takafumi Miyamoto; Masami Fukushima
• Keywords: 01 natural sciences; 0104 chemical sciences

Abstract An iron(III)-phthalocyaninetetrasulfate (FePcTS) was axially coordinated to a series of imidazole functionalized silica, 3-(1-imidazolyl)propylcarbamoyl-3′-aminopropylsilica (IPS) particles. Among the prepared FePcTS/IPS catalysts, catalytic activity for the oxidation of tetrabromobisphenol A (TBBPA) for the smallest sized particle ( − scavenger, on the oxidation of TBBPA oxidation was tested. The TOF values for FePcTS/IPS decreased with increasing ethanol concentration, while the catalytic activities for FeTPPS/IPS were not affected by adding ethanol. These results suggest that the higher catalytic activity of the FePcTS catalytic system can be attributed to the contribution of radical species, which can be generated via the homolysis of O O bonding in the Fe(III)-peroxo species.