Controllable One-Pot Synthesis of Anatase TiO<sub>2</sub> Nanorods with the Microwave-Solvothermal Method

Carlucci, Claudia; Xu, Hua; Scremin, Barbara Federica; Giannini, Cinzia; Sibillano, Teresa; Carlino, Elvio; Videtta, Valeria; Gigli, Giuseppe; Ciccarella, Giuseppe

doi:10.1166/sam.2014.1928

Cited by 15 publications

(20 citation statements)

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“…Some of us previously reported the preparation of a series of nanotitania powders to be used as fillers in high-tech composites (Xu et al, 2013;Carlucci et al, 2014a, 2014b, 2014c, Xu et al, 2014. These materials were prepared via a microwave-solvothermal route using boric, acetic and oleic acid as the key additive reagents.…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

“…The products, obtained without recourse to any subsequent treatment, have high anatase content, nanocrystalline-scale particle dimensions and a predominant shape. Moreover, the new method of preparation is carried out in the absence of surfactants, additional templants or other additives, thus reducing the possibility for the occurrence of phase precipitations or separations and presence of organic impurities (Xu et al, 2013;Carlucci et al, 2014aCarlucci et al, , 2014bCarlucci et al, , 2014cCiccarella Giuseppe, 2014, Xu et al, 2014. TEM images (Fig.…”

Section: Tio 2 Nanoparticles Characterizationmentioning

confidence: 99%

“…The organic acids used in the synthesis coordinate on the titania surface and provide a layer which has characteristic bands in the FT-IR spectrum.TiO 2 surface characterization was detected by the FT-IR spectra, as described in our previous works (Carlucci et al, 2014b(Carlucci et al, , 2014cCiccarella Giuseppe, 2014). In the FT-IR spectrum of the TiO 2 -TB samples (see SM figure SM2), the absorption peak at 1397 cm −1 can be ascribed to the vibration of tri-coordinated boron.…”

Section: Tio 2 Nanoparticles Characterizationmentioning

confidence: 99%

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Surface reactivity and in vitro toxicity on human bronchial epithelial cells (BEAS-2B) of nanomaterials intermediates of the production of titania-based composites

Vergaro

Aldieri

Fenoglio

et al. 2016

Toxicology in Vitro

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Titanium dioxide (TiO2) nanoparticles (NPs) are manufactured worldwide in large quantities for use in a wide range of applications. Evaluating the hazards associated with TiO2 NPs is crucial as it enables risk assessment related to human and environmental exposure. In this study the in vitro human toxicity of a set of TiO2 NPs modified with acetic, oleic and boric acids were studied in order to assess the hazard in view of a future scale-up of the synthesis. The surface reactivity of the powders under simulated solar illumination and in the dark has been evaluated by means of EPR spectroscopy. Human bronchial epithelial cells (BEAS-2B) have been chosen as a model for lung epithelium. Cytotoxicity has been assessed by measuring the cells membrane integrity by lactate dehydrogenase (LDH) assay, and the inflammatory response evaluated as nitric oxide (NO) and TNF-α production, and oxidative stress measured as intracellular reduced glutathione (GSH) levels, and induced lipoperoxidation. Aeroxide P25 was used for comparison. The results demonstrated a low photoreactivity and toxic effects lower than Aeroxide P25 of the nano-TiO2 powders, probably as a consequence of the presence of acidic moieties at the surface.

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Section: Contents Lists Available At Sciencedirectmentioning

confidence: 99%

Section: Tio 2 Nanoparticles Characterizationmentioning

confidence: 99%

Section: Tio 2 Nanoparticles Characterizationmentioning

confidence: 99%

See 1 more Smart Citation

Surface reactivity and in vitro toxicity on human bronchial epithelial cells (BEAS-2B) of nanomaterials intermediates of the production of titania-based composites

Vergaro

Aldieri

Fenoglio

et al. 2016

Toxicology in Vitro

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“…The XRD patterns revealed only the presence of the anatase phase and were analysed by using a whole-profile Rietveld-based fitting program [16] according to the following procedure, fully described elsewhere [11][12][13][14][15]:…”

Section: Nanocrystals' Characterizationmentioning

confidence: 99%

“…The inhomogeneous peak broadening of the anatase TiO 2 reflections was described by a phenomenological model based on the modified Scherrer formula [11][12][13][14][15]. The refinement procedure allowed the calculation of the coherent crystal apparent domain size along each reciprocal lattice vector (h,k,l) direction.…”

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confidence: 99%

Properties of Aluminosilicate Refractories with Synthesized Boron-Modified TiO₂ Nanocrystals

Carlucci

Conciauro²,

Scremin³

et al. 2015

Nanomaterials and Nanotechnology

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An efficient microwave supported synthesis, with a reaction time of only one and a half minute, to prepare boron-modified titania nanocrystals TiO 2 :(B), was developed. The nanocrystals were obtained by hydrolysis of titanium tetraisopropoxide (TTIP) together with benzyl alcohol and boric acid, and the approach did not need surfactants use and a final calcination step. The produced TiO 2 :(B) nanocrystals were characterized in detail by low magnification Transmission Electron Microscopy (TEM), Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES), X-Ray Diffractometry (XRD), and a Micro Raman Spectroscopy. One of the obtained samples was then tested as an additive in various amounts in a typical aluminosilicate refractory composition. The effects of these additions in bricks were evaluated, according to UNI EN 196/2005, in terms of thermo-physical and mechanical properties: diffusivity, bulk density, apparent density, open and apparent porosity and cold crushing strength. Bricks' microstructure was analysed by Scanning Electron Microscopy (SEM) and energy dispersion spectroscopy (EDS). The bricks obtained with nanoadditives presented improved mechanical characteristics with respect to the typical aluminosilicates, presumably because of a better compaction during the raw materials' mixing stage.

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Rapid microwave-assisted hydrothermal synthesis of hierarchical micro/nanostructured TiO2 with tunable nanomorphologies

Yang

Liang

et al. 2016

J Mater Sci: Mater Electron

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Controllable One-Pot Synthesis of Anatase TiO₂ Nanorods with the Microwave-Solvothermal Method

Cited by 15 publications

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Surface reactivity and in vitro toxicity on human bronchial epithelial cells (BEAS-2B) of nanomaterials intermediates of the production of titania-based composites

Surface reactivity and in vitro toxicity on human bronchial epithelial cells (BEAS-2B) of nanomaterials intermediates of the production of titania-based composites

Properties of Aluminosilicate Refractories with Synthesized Boron-Modified TiO₂ Nanocrystals

Rapid microwave-assisted hydrothermal synthesis of hierarchical micro/nanostructured TiO2 with tunable nanomorphologies

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Controllable One-Pot Synthesis of Anatase TiO2 Nanorods with the Microwave-Solvothermal Method

Cited by 15 publications

References 0 publications

Surface reactivity and in vitro toxicity on human bronchial epithelial cells (BEAS-2B) of nanomaterials intermediates of the production of titania-based composites

Surface reactivity and in vitro toxicity on human bronchial epithelial cells (BEAS-2B) of nanomaterials intermediates of the production of titania-based composites

Properties of Aluminosilicate Refractories with Synthesized Boron-Modified TiO2 Nanocrystals

Rapid microwave-assisted hydrothermal synthesis of hierarchical micro/nanostructured TiO2 with tunable nanomorphologies

Contact Info

Product

Resources

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Controllable One-Pot Synthesis of Anatase TiO₂ Nanorods with the Microwave-Solvothermal Method

Properties of Aluminosilicate Refractories with Synthesized Boron-Modified TiO₂ Nanocrystals