Visible light induced photocatalytic performance of Mn-SnO2@ZnO nanocomposite for high efficient cationic dye degradation

In this work, we have synthesized Mn-doped SnO2@ZnO nanocomposite for photo degradation of Methylene blue and Rhodamine B dyes upon visible light irradiation. The crystal structure, functional group, optical absorption, defect related emission, morphology, purity binding energy state samples were identified by using various analytical tools. structure revealed the rutile tetragonal, hexagonal wurtzite SnO2 ZnO average sizes found in range 23.3 nm to 16.7 samples. absorption peaks shifted higher wavelength side band gap values between 3.52 eV 2.77 which confirm formation hetero-junction composites. field emission scanning electron spectroscopy (FESEM) spherical grain morphology pure composite dispersive spectra (EDS) element mapping confirms X-ray photoelectron (XPS) that composition Mn4+, Sn4+ Zn2+ photocatalytic results clearly indicate has efficiency 98% 92% dyes, respectively is than other present study reveals a low cost highly efficient photo-catalyst works up on irradiation purification waste water from industries.