Title :
Photo-Fenton degradation and Mineralization of Polyacrylamide by Using Fe2O3/SiO2 Catalyst
Author :
Liu, Ting ; You, Hong ; Li, Yanchun
Author_Institution :
Dept. of Municipal & Environ. Eng., Harbin Inst. of Technol., Harbin
Abstract :
Degradation and mineralization of polyacrylamide (PAM) in aqueous solution was studied by using Fe2O3/SiO2 as a heterogeneous catalyst in the presence of H2O2 and UV light. Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were used to characterize the catalyst. It was observed that the photo-Fenton degradation of 100 mg/L PAM undergone a faster kinetics than the mineralization, 80% PAM was removed in 120 min and 70% total organic carbons of PAM was eliminated after 180 min in the presence of 1.0 g/L Fe2O3/SiO2 catalyst, 200 mg/L H2O2 and 8 W UV light. In addition, it was also found that H2O2 concentration, UV light intensity, Fe2O3/SiO2 catalyst loading and the initial PAM concentration were the four main factors that could significantly influence the degradation of PAM.
Keywords :
X-ray diffraction; X-ray photoelectron spectra; catalysts; photolysis; polymer solutions; ultraviolet radiation effects; Brunauer-Emmett-Teller spectroscopy; Fe2O3-SiO2; UV light; X-ray diffraction; X-ray photoelectron spectroscopy; catalyst; mineralization; photo-Fenton degradation; polyacrylamide; time 120 min; Iron; Mineralization; Sea measurements; Sea surface; Spectroscopy; Thermal degradation; Water pollution; Water resources; X-ray diffraction; X-ray scattering;
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
DOI :
10.1109/ICBBE.2008.1080
