Photocatalytic degradation of chlorobenzene using solar and artificial UV radiation

Abstract

In this work photocatalytic degradation of chlorobenzene has been studied using solar and artificial UV radiations. The effect of pH and the presence of different anions on the degradation of chlorobenzene has been studied for both cases. Chlorobenzene has been found to be a strongly adsorbing and hence rapidly degrading species when subjected to photocatalysis. The effect of pH in the range of 3-10 and the presence of different anions at a concentration of 0.1 mol dm −3 on the adsorption was studied. Both pH and the presence of anions affect adsorption and the degradation but the overall effect is negligible (<5%).

Sol–gel iron-doped TiO2 nanopowders with photocatalytic activity

“…Our experimental results are in accordance with data reported by other authors regarding first-order kinetic degradation of some nitroaromatic compounds like mono, di, tri nitrobenzenes, nitrotoluenes and nitrophenols in UV/TiO 2 systems [52][53][54][55][56].…”

Novel solar‐based photocatalytic reactor for degradation of refractory pollutants

“…Details of the columns and mobile phases used are given by Bhatkhande et al (2003a) for NB, Bhatkhande et al (2003b) for CB, and Yawalkar et al (2001) for phenol, respectively. Total organic carbon (TOC) was calculated from HPLC analysis and verified using a Total Organic Carbon Analyzer (ANATOC™-II, Australia).…”

UV LED Sources for Heterogeneous Photocatalysis

“…A comparison between solar and artificial UV irradiation in the photocatalytic degradation of nitrobenzene at equivalent catalyst loading by Bhaktende et al [48] showed a much faster photocatalytic reaction rate under artificial UV radiation even though concentrated sunlight was used. This is as a result of the percentage useful component (UV) present in the artificial lamp used being higher than that in sunlight; however, solar irradiation can show a higher efficiency when visible radiation as well as UV is utilised by the catalyst in the photocatalytic reaction [49].…”