Structural and Optical Characterization of g-C3N4 Nanosheet Integrated PVC/PVP Polymer Nanocomposites

Abstract

The present work considers the integration of g-C3N4 nanosheets into PVC/PVP polymer nanocomposites at ratios of 0.0, 0.3, 0.6, and 1.0 wt%. The XRD data scans showed semicrystalline structures for all PVC/PVP/g-C3N4 polymer blend films. The FTIR and Raman measurements revealed intermolecular hydrogen bonding between the g-C3N4 surface and the OH− groups of the PVC/PVP network. ESEM morphology analysis for PVC/PVP/g-C3N4 nanocomposite films displayed homogeneous surface textures. The data of TGA showed improved thermal stability as the decomposition temperature increased from 262 to 276 °C with the content of g-C3N4 (0.0–1.0 wt%). The optical absorbance data for PVC/PVP films improved after the addition of g-C3N4. The optical energy gaps showed compositional dependence on the g-C3N4 content, which changed from 5.23 to 5.34 eV at indirect allowed transitions. The refractive index for these blend films enhanced (1.83–3.96) with the inclusion of g-C3N4. Moreover, the optical susceptibility for these nanocomposite films increased as the content of g-C3N4 changed from 0.0 to 1.0 wt%. Finally, the values of the nonlinear refractive index showed improvement with the increased percentage of g-C3N4. When g-C3N4 was added up to 1.0 wt%, the DC conductivity improved from 4.21 × 10−8 to 1.78 x 10−6 S/cm. The outcomes of this study prove the suitable application of PVC/PVP/g-C3N4 in optoelectronic fiber sensors.

Structure–Property Relationships in PVDF/SrTiO3/CNT Nanocomposites for Optoelectronic and Solar Cell Applications

“…High refractive index polymer films have also been investigated for their optical and electrical performance in optoelectronic applications. Several factors, including the type of molecules making up the polymer, the inclusion of fillers, the film’s overall depth, and the stretching of a polymer film, control different interactions with light, as measured by its refractive index [ 56 ]. Reflectance quantifies the proportion of incident light that a surface reflects.…”

“…This is because the nanofillers scatter light, which reflects off the surface of the film. The following equation is used to find the relationship between reflectance (R) and refractive index (n) [35,56]:…”

“…Strong interfacial interactions between the SrTiO3/CNTs and the PVDF chains can induce The following equation is used to find the relationship between reflectance (R) and refractive index (n) [35,56]:…”

Synthesis of CaCO3/Cu2O/GO Nanocomposite Catalysts for Hydrogen Production from NaBH4 Methanolysis

“…We can discern that increasing of calcium in the composites led to a decrease in the energy gap, and this is rel One of the most important elements of the electron structure of materials is the energy gap, which expresses the inter-band transitions [54]. We can consider the relationship between the absorption coefficient (αhv) and the photon energy (hv), which was formulated by Tauc [55][56][57], in the case of direct transitions to determine the optical energy gap (E opt ):…”

Enhancing acid orange II degradation in ozonation processes with CaFe2O4 nanoparticles as a heterogeneous catalyst

“…The nano CaFe 2 O 4 nanocatalyst phase can be seen in Fig. 2c 27 showing that the planes (102), ( 202), (302), ( 210), ( 113), (311), (214), and (512) correspond to the 2q angles of 19.2°, 25.7°, 33.6°, 35.6°, 40.4°, 42.8°, 49.6°, and 61.4°, respectively. Understanding materials' physical and chemical characteristics using the data from XRD measurements is useful for creating new applications in sensing, energy storage, and catalysis.…”