Elaboration and characterization of a multifunctional silane/ZnO hybrid nanocomposite coating

Nicolay, Arnaud; Lanzutti, A.; Poelman, M.; Ruelle, Benoît; Fedrizzi, L.; Dubois, Philippe; Olivier, Marie‐Georges

doi:10.1016/j.apsusc.2014.11.161

Cited by 43 publications

(20 citation statements)

References 34 publications

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“…Nanocomposites have attracted considerable research attention in recent years, because they combine low weight and easy formability. Several papers report on nano-ZnO coupled to different polymers, such as: poly(N-isopropylacrylamide)19, polyester20, hybrid polymers2122, polyethylene glycol or Pluronic F12723. Among the available polymers, poly(methyl methacrylate) (PMMA) is frequently employed in many applications, since its transparency to visible light, its mechanical properties and chemical stability; it is also a low-cost and hydrophobic polymer suitable for contact with food and drinks.…”

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confidence: 99%

Novel synthesis of ZnO/PMMA nanocomposites for photocatalytic applications

Mauro

Cantarella

Nicotra

et al. 2017

Sci Rep

156

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The incorporation of nanostructured photocatalysts in polymers is a strategic way to obtain novel water purification systems. This approach takes the advantages of: (1) the presence of nanostructured photocatalyst; (2) the flexibility of polymer; (3) the immobilization of photocatalyst, that avoids the recovery of the nanoparticles after the water treatment. Here we present ZnO-polymer nanocomposites with high photocatalytic performance and stability. Poly (methyl methacrylate) (PMMA) powders were coated with a thin layer of ZnO (80 nm thick) by atomic layer deposition at low temperature (80 °C). Then the method of sonication and solution casting was performed so to obtain the ZnO/PMMA nanocomposites. A complete morphological, structural, and chemical characterization was made by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) analyses. The remarkable photocatalytic efficiency of the nanocomposites was demonstrated by the degradation of methylene blue (MB) dye and phenol in aqueous solution under UV light irradiation. The composites also resulted reusable and stable, since they maintained an unmodified photo-activity after several MB discoloration runs. Thus, these results demonstrate that the proposed ZnO/PMMA nanocomposite is a promising candidate for photocatalytic applications and, in particular, for novel water treatment.

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confidence: 99%

Novel synthesis of ZnO/PMMA nanocomposites for photocatalytic applications

Mauro

Cantarella

Nicotra

et al. 2017

Sci Rep

156

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“…In the second degradation stage, the mass loss was in the range of 30–43, 40–70, and 40–62 wt % sequentially which results from degradation of copolymer. The third weight loss stage was due to the polymer decomposition; its mass loss range is 2–16, 2–10, and 10–16 wt % sequentially as shown in Table …”

Section: Resultsmentioning

confidence: 99%

Dielectric properties of irradiated polymer/multiwalled carbon nanotube and its amino functionalized form

Atta

Lotfy

Abdeltwab

2018

J of Applied Polymer Sci

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The polymer/multiwalled carbon nanotube [poly(vinyl alcohol) (PVA)/carboxyethyl acrylate (CEA)]‐multiwalled carbon nanotube (MWCNT) and its amino functionalized (PVA/CEA)‐MWCNT‐NH2 nanocomposite samples were successfully synthesized by the chemical method in the form of films. The samples were irradiated with gamma‐ray doses of 50 and 100 kGy and with ion beam fluence of 2.5 × 1018 and 3.75 × 1018 ions cm−2. The prepared nanocomposite samples were characterized using X‐ray diffraction and thermogravimetric analysis. The X‐ray diffraction and thermogravimetric analysis confirm the existence of the chemical crosslinking occurred in the polymer compositions. The AC electrical conductivity, electrical modulus, dielectric constant, and dielectric loss in the frequency range 102–106 Hz are measured at room temperature. The electrical conductivity is increased with MWCNT doping, gamma‐irradiation, and by ion beam irradiation. A comprehensive analysis of the results revealed that dielectric properties are improved due to the induced physicochemical changes and conductive networks induced by ion beam irradiation. The behavioral effect of these embedded nanoparticles in a PVA matrix on the microstructural, dielectric, and electric properties is analyzed for possible device applications. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46647.

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“…S1 a and b in the Supporting Information, the infrared spectrum of ZnO nanoparticles before and after modification with the coupling agent ( n ‐OTES) exhibited absorption at 2870 cm −1 , 1050 cm −1 , and 890 cm −1 , which were characteristic peaks of the CH 2 group of n ‐OTES, Si–O, and Zn–O–Si, respectively. The broad absorption peak between 3400 cm −1 and 3450 cm −1 corresponds to hydroxyl (OH) groups on the ZnO nanoparticle . These results illustrate that the reaction between silane coupling ( n ‐OTES) and hydroxyl groups (OH) on ZnO was performed (see Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The final products, i.e., n ‐OTES‐grafted ZnO nanoparticles, were dried under vaccum at 50 °C for 24 h . By this treatment, the silane coupling agent ( n ‐OTES) was reacted with hydroxyl groups on the ZnO surface , . The reaction mechanism is illustrated in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…In the present work, nanoparticles were modified in several processes to be hydrophobic and applied in membrane preparation to improve the MD process for seawater desalination. In order to increase the hydrophobicity of ZIF‐8, ZnO nanoparticles and a silane coupling agent were employed which are the most common materials for membrane modification . Since ZnO is a hydrophilic nanoparticle because of its OH group, it was modified with n ‐octyltriethoxysilane ( n ‐OTES) and finally, the modified ZnO (MZnO) nanoparticles and ZIF‐8 made the core‐shell structure (MZnO@ZIF‐8).…”

Section: Introductionmentioning

confidence: 99%

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Poly(vinylidene difluoride) Membrane Assisted by Modified ZnO/ZIF Nanoparticles for Membrane Distillation

2018

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Poly(vinylidene difluoride) (PVDF) polymeric membranes incorporated by synthesized hydrophobic agents were applied for membrane distillation. ZnO nanoparticles were modified with a silane coupling agent (n‐octyltriethoxysilane) and coupled by zeolite imidazole framework (ZIF)‐8 crystals. In particular, hydrophobic and porous membranes were prepared with ZIF crystals and modified ZnO/ZIF‐coupled nanoparticles. The influences of feed concentration and temperature of NaCl solution and seawater during filtration were evaluated. The hydrophobic modified membranes showed a higher permeate flux than pure PVDF membranes at different feed concentrations and feed temperatures. After modification, the porosity increased significantly and the contact angle became larger.

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Elaboration and characterization of a multifunctional silane/ZnO hybrid nanocomposite coating

Cited by 43 publications

References 34 publications

Novel synthesis of ZnO/PMMA nanocomposites for photocatalytic applications

Novel synthesis of ZnO/PMMA nanocomposites for photocatalytic applications

Dielectric properties of irradiated polymer/multiwalled carbon nanotube and its amino functionalized form

Poly(vinylidene difluoride) Membrane Assisted by Modified ZnO/ZIF Nanoparticles for Membrane Distillation

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