Ali Sobhani-Nasab - Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box ۸۷۳۱۷-۵۱۱۶۷, Kashan, I. R. Iran
Mohsen Behpour - Institute of Nano Science and Nano Technology, University of Kashan, P. O. Box ۸۷۳۱۷-۵۱۱۶۷, Kashan, I. R. Iran
Mehdi Rahimi-Nasrabadi - Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran .Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, Iran

Sm2Ti2O7 nanoparticles Sm2 Ti2 O7/ Carbon quantum dot (CQD) nanocomposites were synthesized by eco-friendly method. The effects of various capping agents such as glucose, fructose, lactose, and starch on the morphology and particle size of 2SmTi2 O7/CQDs nanocomposites were investigated. Sm2Ti2O 7/CQDs nanocomposites were analyzed through techniques including, spectroscopy,-rayX diffraction (XRD), Scanning electron microscopy (SEM), desorption branch of the isotherm by the Barrett,Joyner and Halenda (BJH) and Ultraviolet–visible (UV–vis) spectroscopy. Furthermore, due tooccurrence of red shift in nonanocomposite, during the coupling of CQDs into Sm2Ti2O7, photocatalytic and optical properties of final products were improved which lead to improve photo-destruction efficiency for methylene blue from 57% to 95%, during 135 min visible irradiation.

Sm2Ti2O7/CODs, Visible light, Nanocomposites, Eco-friendly method