Lightweight, flexible NiO@SiO2/PVDF nanocomposite film for UV protection and EMI shielding application

Dutta, Biplab; Kar, Epsita; Sen, Gobinda; Bose, Navonil; Mukherjee, Sampad

doi:10.1016/j.materresbull.2019.110746

Cited by 34 publications

(13 citation statements)

References 41 publications

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“…summarizes the literature reports on the UV-shielding and adsorption properties of SiO 2 or Fe 2 O 3 based composites. It is found that the present SiO 2 powder and SiO 2 -Fe 2 O some cases of 15 wt% in NiO-SiO 2 -PVDF(Dutta et al 2019). The optimization of UV-shielding and visible transparency is very important which is achieved in the present report.…”

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confidence: 63%

Green Preparation of Flexible and Transparent SiO2-Fe2O3-PS film for Dye Adsorption and UV-Shielding Applications

Nath

Mahato

2023

Preprint

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A multifunctional green polymer nanocomposite (SiO2-Fe2O3-PS) film has been prepared using earth-abandoned and waste materials such as natural sand, waste expanded polystyrene (EPS), and pea eggplant fruit extract. SiO2 was prepared using natural sand by alkali fusion method, SiO2-Fe2O3 was prepared by microwave assisted green synthesis method and the SiO2-Fe2O3-PS film was prepared by solution casting method. The SiO2-Fe2O3 (20:80)-PS film shows the shielding efficiency of 91–100% in the wavelength range of 390 − 200 nm and transparency of 71% to visible light at 800 nm. The SiO2-Fe2O3 (50:50)-PS film shows maximum adsorption capacity of 61.2% to methylene blue (MB) dye. The UV-Vis peak position of SiO2 (326 nm) and Fe2O3 (276 nm) are in line with the literature. The peak position in SiO2-Fe2O3 at different wt% ratio, were found at 290 nm (10:90), 328 nm (20:80), and 292 nm (50:50), which are indicative of the formation of heterostructure. The XRD data of SiO2-Fe2O3 comprises sharp peaks of both components that confirm the heterostructure formation and its crystalline nature. The SiO2-Fe2O3-PS composite formation was confirmed by FTIR and FESEM. The film is hydrophilic in nature (contact angle of 75.96°) and shows maximum thermal stability upto 381.6 ℃ (SiO2-Fe2O3 (20:80)-PS). The adsorption experiment was carried out using a 50 mg catalyst either in powder or film form with 100 mL dye solution of concentration 20 mg/L, where equilibrium adsorption was achieved within 180 minutes. The adsorption efficiency of SiO2, Fe2O3, SiO2-Fe2O3 (20:80), SiO2-Fe2O3(50:50), and SiO2-Fe2O3(50:50)-PS are found to be 98.3%, 3.88%, 91.1%, 96.2%, and 61.2%, respectively. The MB dye adsorption process follows pseudo second order kinetics and is best fitted with the Langmuir isotherm model. The novel SiO2-Fe2O3-PS film is found to be low cost, green, and environmentally friendly with multifunctional applications in the area of UV shielding, visible transparent and dye adsorption.

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confidence: 63%

Green Preparation of Flexible and Transparent SiO2-Fe2O3-PS film for Dye Adsorption and UV-Shielding Applications

Nath

Mahato

2023

Preprint

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“…Bilap Dutta et al, 2020 investigated lightweight, flexible nickel oxide and silicon dioxide based PVDF nanocomposite films for EMI shielding applications. This study showed that the nanofilms fabricated via solution casting method with a thickness of 0.3 mm have achieved shielding effectiveness of 21 dB 187 . Sabira 2017 investigated the absorption dominated EMI shielding effects of flexible PVDF films incorporated with Gr nanofillers.…”

Section: Fabrication Techniques Adopted To Produce Pvdf Composites Wi...mentioning

confidence: 99%

Polyvinylidene fluoride—An advanced smart polymer for electromagnetic interference shielding applications—A novel review

Nivedhitha

Jeyanthi²

2023

Polymers for Advanced Techs

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Emerging technology and modernization have become a worldwide threat to human life in all aspects. Worldwide, all countries are in the race to develop the most advanced electronic devices and gadgets as they reflect the country's superiority and economic development. Specialists have forecasted that during and after the pandemic, the addiction toward modern gadgets have increased by 40% among the people irrespective of age. A few researchers have reported that the world economy is dependent on and dominated by countries manufacturing semiconductors, mobiles, electronic chips, and so on. People started sensing that modern devices are like a boon, as their lives seem to be more connected and comfortable with all their needs and wants being fulfilled at their doorsteps. But this boon is slowly whirling as a severe threat to human lives. Due to this rapid usage of electronic devices, electromagnetic interference (EMI) is drastically growing, which is considered a global warning issue for commercial and biological systems. So advanced countries have decided to make EMI shielding a compulsory entity to be implemented in all advanced electronic devices. Though traditional materials like metals and carbon allotropes have excellent shielding properties, they cannot cope with today's mass production of modern devices. Thus, researchers had to find a suitable substitute material that should possess properties such as sustainability and biocompatibility to overcome problems faced by the conventional materials. Thus, polymers have come into the world of EMI shielding applications. Polyvinylidene fluoride (PVDF), a non‐conductive polymer from the family of Fluorocarbons, is creating history in the field of EMI shielding applications. PVDF astonished researchers with its versatile features, such as light weight, flexibility, and easy processibility with excellent dielectric and piezoelectric properties. Though they are poor in electrically conductive properties, incorporating metals, carbon allotropes, and metal oxides as fillers make them superior to the existing conventional materials. Thus, the main objective of this review article is to highlight the uniqueness of PVDF as an advanced polymer for EMI shielding applications. It has been noted that PVDF is more suitable for EMI shielding in X, K, and Ku band frequencies. But overall, we noticed that the performance of PVDF has a great impact by incorporating a combination of metal and carbon allotrope enhances the shielding effectiveness up to 65 dB in the Ku‐band (Kurz‐under) frequency band range of (12–18 GHz).

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“…429 BaTiO 3 /PANI composite prepared by adding PANI (50 wt%) to BaTiO 3 (BaTiO 3 /PANI wt ratio ¼ 1 : 1) showed the minimum reection loss of À20 dB (23 Hz) and À27 dB (33 GHz). 430 PANI-tetragonal BaTiO 3 , 431 CNT (2 wt%)/BaTiO 3 (34.5 wt%)/ epoxy, 432 BaTiO 3 -CoFe 2 O 4 lled LDPE, 433 graphite nanoplatelets (6 wt%)/BaTiO 3 (30 wt%)/epoxy, 434 NiO@SiO 2 (15 wt%)/PVDF, 435 EPDM/BaTiO 3 (20 phr)/MWCNT (10 phr), 436 tetragonal BaTiO 3 (80 phr)/NBR, 437 CNT/BaTiO 3 /polyaniline, 438 445 and PANI/TiO 2 /g-Fe 2 O 3 , 446 have also been studied for their EMI shielding efficiencies.…”

Section: Thicknessmentioning

confidence: 99%

“…Dielectric materials and their composites have also been used in blocking incoming EM waves. 406–437 Lu et al 406 studied the thickness dependence variation of reflection loss against ε ′ and ε ′′ (Fig. 18(a)) and microwave absorption properties of the composites loaded with 10 wt% ZnO@MWCNTs vs. the frequency and thickness at different temperatures (Fig.…”

Section: Dielectric Materialsmentioning

confidence: 99%

“…PANI–tetragonal BaTiO 3 , 431 CNT (2 wt%)/BaTiO 3 (34.5 wt%)/epoxy, 432 BaTiO 3 –CoFe 2 O 4 filled LDPE, 433 graphite nanoplatelets (6 wt%)/BaTiO 3 (30 wt%)/epoxy, 434 NiO@SiO 2 (15 wt%)/PVDF, 435 EPDM/BaTiO 3 (20 phr)/MWCNT (10 phr), 436 tetragonal BaTiO 3 (80 phr)/NBR, 437 CNT/BaTiO 3 /polyaniline, 438 C/SiO 2 , 439 MgO–Al 2 O 3 –SiO 2 glass–ceramic system, 440 PANI/HA/TiO 2 /Fe 3 O 4 , 441 PANI-filled TiO 2 , 442 PANI/Sb 2 O 3 , 443 PANI/Y 2 O 3 , 444 SnO, 445 and PANI/TiO 2 /γ-Fe 2 O 3 , 446 have also been studied for their EMI shielding efficiencies.…”

Section: Dielectric Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Recent advancements in the electromagnetic interference shielding performance of nanostructured materials and their nanocomposites: a review

Srivastava

Manna

2022

J. Mater. Chem. A

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Lightweight, flexible NiO@SiO2/PVDF nanocomposite film for UV protection and EMI shielding application

Cited by 34 publications

References 41 publications

Green Preparation of Flexible and Transparent SiO2-Fe2O3-PS film for Dye Adsorption and UV-Shielding Applications

Green Preparation of Flexible and Transparent SiO2-Fe2O3-PS film for Dye Adsorption and UV-Shielding Applications

Polyvinylidene fluoride—An advanced smart polymer for electromagnetic interference shielding applications—A novel review

Recent advancements in the electromagnetic interference shielding performance of nanostructured materials and their nanocomposites: a review

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