Fabrication and Exploring the Morphological, Structural and Optical Characteristics of Polyvinyl Alchol—Carboxymethyl Cellulose—Silicon Dioxide—Tin Dioxide Nanostructures for Optoelectronics and Antibacterial Applications

Hamza, Rehab Shather Abdul; Habeeb, Majeed Ali

doi:10.1007/s12633-023-02735-6

Cited by 2 publications

(1 citation statement)

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“…The use of SiO 2 as a nanofiller for PVA/CMC blend films was rarely discussed. The influence of SnO 2 /SiO 2 and Cr 2 O 3 / SiO 2 nanocomposites on the optical parameters and structural features of the PVA/CMC matrix have been discussed [27,28]. The integration of SiO 2 nanoparticles has played a pivotal role in revolutionizing the enhancement of polymer surfaces' morphological structure and optical characteristics.…”

Section: Introductionmentioning

confidence: 99%

Effects of SiO2 Nanoparticles on Polyvinyl Alcohol/Carboxymethyl Cellulose Polymer Blend Films’ Structural, Wettability, Surface Roughness, and Optical Characteristics

Soliman

2024

Advances in Polymer Technology

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The blend matrix composed of polyvinyl alcohol and carboxymethylcellulose (PVA/CMC) was prepared via the casting method. SiO2 nanoparticles were added as reinforcement in different amounts (SiO2 = 1, 2, 3, and 4 wt.%). The study utilized FTIR to examine the alterations in composition and the interplay between the blend matrix and the inclusion of SiO2. Also, for the first time, the surface roughness and surface wettability of the PVA/CMC blend matrix were investigated with the addition of SiO2 using measurements of contact angle and surface roughness parameters. The surface roughness and wettability of the blend matrix increased as the SiO2 content increased. In addition, the blend matrix optical features were determined by the UV–visible spectrophotometer. Based on the analysis using Tauc’s relation, it was found that the energy bandgap decreases from 5.52 to 5.17 eV (direct transition) and from 4.79 to 4.32 eV (indirect transition) for the PVA/CMC and PVA/CMC/4%SiO2 blend films, respectively. The refractive index increases from 2.009 to about 2.144 for the PVA/CMC and PVA/CMC/4%SiO2 blend films, respectively. Furthermore, optical conductivity and dielectric constants were improved for the PVA/CMC blend film after the addition of SiO2 nanoparticles.

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Section: Introductionmentioning

confidence: 99%