پديدآورندگان :
Rastegar S. Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran , Allahyari S. Allahyari@sut.ac.ir Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran , Kahforooshan D. Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran , Rahemi N. Chemical Engineering Faculty, Sahand University of Technology, Tabriz, Iran
كليدواژه :
Photocatalyst , Wastewater , Natural zeolite , Mordenite , Silicotungstic acid
چكيده فارسي :
In this research, methylene blue photocatalytic degradation was carried out using photocatalyst of silicotungstic acid on natural zeolite of mordenite as support. This photocatalyst was characterization by XRD, FESEM and DRS analyses and the results showed that silicotungstic acid/mordenite (HSiW/Mord) has a uniform, agglomeration free distribution with average size of 9.7 nm. This catalyst indicated almost sharp peaks of HSiW and no peaks of mordenite in XRD pattern. DRS confirmed 3.17 eV for band gap of HSiW/Mord photocatalyst which is reduced compared to HSiW. The evaluation of photocatalytic activity showed that HSiW/Mord in the concentration of methylene blue of 10 ppm and pH=11 is almost 60% of initial value.
