ZOU Han, WANG Shutao, YOU Hong, et al. Quinoline degradation and mechanism in catalytic wet peroxide oxidation system[J]. CIESC Journal, 2014, (11): 4400-4405.
ZOU Han, WANG Shutao, YOU Hong, et al. Quinoline degradation and mechanism in catalytic wet peroxide oxidation system[J]. CIESC Journal, 2014, (11): 4400-4405.DOI: 10.3969/j.issn.0438-1157.2014.11.026.
In order to study the removal and degradation mechanism of quinoline in catalytic wet peroxide oxidation (CWPO) system
a series of experiments were conducted over CuO-FeOx/γ-Al2O3 catalyst. The influence of reaction temperature
initial pH
dosage of H2O2 and amount of catalyst were investigated
and the role of and degradation pathways of quinoline were analyzed. CWPO had good removal efficiency for quinoline. A complete quinoline conversion and 88.34% total organic carbon (TOC) removal were achieved in 60 min with initial pH of 7
29.15 mmol·L-1 of H2O2 and 4 g·L-1 of catalyst at 80℃.·OHoxidation played a dominant role in quinoline degradation in CWPO system
and its average production rate was 1.69×10-6 mmol·L-1·min-1. Under neutral and acidic conditions
quinoline degradation in CWPO system followed different pathways
and generated pyridine-based or benzene-based intermediate products.