شماره ركورد كنفرانس :
5041
عنوان مقاله :
Photocatalytic Degradation of Methylene Blue by CQDs/TiO2 Composite Synthesized via the Sol-gel Method
Author/Authors :
A. Mozdbar Fouman Faculty of Engineering - College of Engineering - University of Tehran, Fouman, Iran , A. Nouralishahi Caspian Faculty of Engineering - College of Engineering - University of Tehran, Rezvanshahr, Iran , Sh. Fatemi School of Chemical Engineering - College of Engineering - University of Tehran, Tehran, Iran , Gh. Mirakhori Chemical engineering Department - University of Tehran, Tehran, Iran , F. S. Talatori Chemical engineering Department - University of Tehran, Tehran, Iran
كليدواژه :
Carbon quantum dot , methylene blue , photocatalys , CQDs/TiO2 Composite
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
Photocatalyst materials have been of considerable interest due to their application in eliminating environmental pollutions. Among the photocatalyst semiconductors, titanium dioxide is known as a photocatalyst for the removal of environmental contaminants. In this work, the carbon quantum dots (CQDs)/TiO2 composite was used as photocatalyst for UV assisted degradation of methylene blue (MB) in aqueous solution. First, CQDs were synthesized by hydrothermal/solvothermal rout using citric acid and thiourea as precursors. Products were characterized by using FTIR, UV-Visible Spectroscopy and Photoluminescence (PL) analysis. Then, CQDs modified TiO2 photocatalyst were prepared by facile sol-gel method. Produced composite was used as photocatalyst in methylene blue solution with 10 mg/l concentration under UV lamp. After 200 min, final solution was characterized by UV-Vis Spectroscopy and results showed that 80% of methylene blue had been degraded.
