Structures and UV resistance of Ag/SnO2 nanocomposite materials synthesized by horizontal vapor phase growth for coating applications
Penulis/Author
E.B Tibayan Jr. (1); Ir. Muhammad Akhsin Muflikhun, S.T., MSME., Ph.D (2); A.R.C Villagracia (3); Vipin Kumar (4); Gil Nonato C. Santos (5)
Tanggal/Date
2020
Kata Kunci/Keyword
Abstrak/Abstract
The structures and UV resistance of Ag/SnO2 nanocomposite materials was observed in
this study for coating applications. Horizontal Vapor Phase Growth (HVPG) was used to
synthesize the Ag/SnO2 nanocomposite materials. The ratio between Ag and SnO2 was
fixed with stoichiometric mixtures of 0:5, 1:4, 2:3, 3:2, 4:1, and 5:0. Scanning electron
microscope–energy-dispersive X-ray spectroscopy (SEM–EDX) was used to evaluate the morphology of the materials. The results were then compared with Density Functional Theory
(DFT) analysis. Computational DFT analysis of the SnO2 (110) and Ag (111) cells have verified
nanorods formation of the composite material. Moreover, DFT results of Ag/SnO2 confirmed
the UV blocking properties from their computed electrical bandgap energies of the range
from 2.72 to 4.84 eV. The highest UV absorbance of nanocomposite was observed for 1:4
Ag/SnO2 stoichiometric ratio with 8.09 A. The study shows that the ration of SnO2 over Ag
increases, the absorbance increases as well.
