Title
Carbon nanospheres supported visible-light-driven ZnSb2O6: synthesis, characterization and photocatalytic degradation studies
Author
Sunku Manasa, Ravi Gundeboina, Venkataswamy Perala, Vaishnavi Kammara, M. Vithal
Year
2019
Journal
SN Applied Sciences
Abstract
Carbon-based nanocomposites are gaining considerable attention due to their broad range of applicability in various fields, especially as photocatalysts. The present work demonstrates the impact of carbon nanospheres on photocatalytic efficiency of ZnSb2O6 (ZSO), a UV active photocatalyst. Carbon nanospheres supported ZnSb2O6 (CNSZSO) is synthesized by the hydrothermal method using glucose as a precursor. ZnSb2O6 is prepared by metathesis method for the first time. As prepared samples are characterized by XRD, FESEM/EDS, FTIR, XPS, UV–Vis DRS. The samples are crystallized in the primitive tetragonal crystal lattice with space group P42/mnm as confirmed by XRD. The optical absorbance profile of CNSZSO showed a clear redshift of absorption edge towards visible region (400–800 nm) and also band gaps obtained from KM plots showed a decrease from 2.96 eV (ZSO) to 1.48 eV (CNSZSO). Further, photocatalytic degradation studies against methyl violet are investigated under visible light irradiation for the first time. The results suggest an enhancement in the degradation percentage by CNSZSO.
Instrument
V-650, FP-8500
Keywords
Absorption, Diffuse reflectance, Nanostructures, Band gap, Quantitation, Photoluminescence, Fluorescence, Materials, Optical properties