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Multi-Functional Electrospun AgNO3/PVB and Its Ag NP/PVB Nanofiber Membrane
Taohai Yan1, Shengbin Cao2, Yajing Shi1
1Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou 350108, China.
Molecules (Basel, Switzerland)
|August 26, 2023
Summary
This study fabricated silver nitrate (AgNO3) polyvinyl butyral nanofibers using electrospinning. The resulting films show promising anti-UV and anti-electromagnetic radiation properties, with potential applications in functional materials.
Area of Science:
- Materials Science
- Nanotechnology
- Polymer Science
Background:
- Development of functional materials for radiation shielding is crucial.
- Electrospinning offers a versatile method for fabricating nanofiber membranes.
- Silver nanoparticles (Ag NPs) are known for their unique optical and conductive properties.
Purpose of the Study:
- To fabricate polyvinyl butyral (PVB) fiber membranes containing silver nitrate (AgNO3).
- To investigate the conversion of AgNO3 to silver nanoparticles (Ag NPs) via UV irradiation.
- To evaluate the anti-ultraviolet (UV) and anti-electromagnetic radiation (EMR) properties of the resulting nanofiber films.
Main Methods:
- Electrospinning of AgNO3/PVB solutions.
- UV irradiation for reduction of AgNO3 to Ag NPs.
- Characterization using scanning electron microscopy (SEM) and X-ray diffraction (XRD).
- Assessment of anti-UV and anti-EMR shielding performance.
Main Results:
- Increasing AgNO3 concentration affected fiber diameter and deviation.
- UV irradiation for >60 min effectively formed Ag NPs, confirmed by XRD.
- AgNO3-containing films showed better anti-UV performance than Ag NP films.
- Ag NP films exhibited enhanced anti-EMR performance around 2.5 GHz.
- Shielding effectiveness was frequency-dependent, with better performance at lower frequencies.
Conclusions:
- PVB nanofibers with incorporated AgNO3 can be successfully fabricated via electrospinning.
- UV irradiation is effective for generating Ag NPs within the nanofiber matrix.
- The developed materials demonstrate significant potential for anti-UV and anti-EMR applications.
- The study provides insights for designing functional nanofibers for radiation protection.
