Abstract
A polymer supported complex Fe(PS-BBP)Cl3 [PS = chloromethylated polystyrene divinyl benzene; BBP = 2,6-bis(benzimidazolyl)pyridine] was prepared and characterized by elemental analyses, FT-IR and electronic spectral studies, AAS, magnetic moment measurement, BET surface area measurement and thermal analysis. Its photocatalytic properties were evaluated by studying the degradation of phenolic compounds (phenol, catechol, hydroquinone, p-chlorophenol, p-nitrophenol, o-cresol, p-cresol) and dyes (methyl orange, methyl red, rhodamine B) under UV light illumination to CO2 and H2O in the presence of H2O2. The effects of important parameters such as concentration of Fe(PS-BBP)Cl3 and substrates (phenol or methyl orange), amount of H2O2, and time have been investigated on the rate of degradation of phenol and methyl orange. Complete degradation of phenol and methyl orange occurred at room temperature with Fe(PS-BBP)Cl3 under UV radiation in 30 and 120 min respectively. Experimental results indicated that the reactivity of Fe(PS-BBP)Cl3 is more than its unsupported analogue. The intermediates formed during the process were identified using LCMS. Photoelectrochemical measurements (amperometry) carried out for Fe(PS-BBP)Cl3 revealed the faster migration of photo-induced charge-carriers. The degree of mineralization was also confirmed by chemical oxygen demand (COD) experiments. The results indicated that these could be effectively decolorized and degraded by photocatalytic method, without generation of any hazardous wastes or by-products as evident from the considerable reduction in COD values. The photocatalytic activity of the supported complex in presence of solar light was also investigated.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Photochemistry and Photobiology A: Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
