Synthesis and Growth Mechanism of Net-like Titanate Nanowire Films via Low-temperature and Low-alkali-concentration Route

Huang, Xinwen; Liu, Zongjian Liu

doi:10.5101/nml.v5i2.p93-100

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…Sample (e) was just a large chunk and its surface was smooth. The titanate sheets could split into nanowires by prolonging the time of Ti foils treated in mixed solution of NaOH and H 2 O 2 and then the nanowire layers formed with longer time, finally the netlike structure could be constructed [25]. The morphology change of sample (c) to that of sample (a) was in keeping with the formation of titanate nanowires from the sheets structure.…”

Section: −mentioning

confidence: 80%

Preparation of Na₂Ti₃O₇/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Zhao

Huang

Guo

et al. 2015

Journal of Chemistry

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Na2Ti3O7/titanium peroxide composites (TN-TP) were successfully prepared with the reaction of Ti foils, NaOH, and H2O2at 60°C for 24 h in water bath. The Na2Ti3O7appeared as nanorods in composites. Water bath temperature, water bath time, and the concentration of H2O2and NaOH were crucial. The reaction mechanism was proposed. TN-TP was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and thermogravimetric and differential scanning calorimetry (TG-DSC). TN-TP was a mesoporous material and exhibited stronger adsorption capability for neutral red (NR), malachite green (MG), methylene blue (MB), and crystal violet (CV) than pure Na2Ti3O7and pure titanium peroxide, and the saturated adsorption capacities were 490.21, 386.13, 322.81, and 292.74 mg/g at 25°C, respectively. It was found that the pseudo-second-order kinetic model and the Langmuir model could well describe the adsorption kinetic and isotherm of cationic dyes studied. The results of this work are of great significance for environmental applications of TN-TP as a promising adsorbent material for dyeing water purification.

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Section: −mentioning

confidence: 80%

Preparation of Na₂Ti₃O₇/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Zhao

Huang

Guo

et al. 2015

Journal of Chemistry

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“…The dissolved Ti(IV) nucleates and grows into lamellar sodium titanate.The continuous dissolution of titania provides sufficient dissolved Ti(IV) and thus the nanosheets grows. The nanosheets will bend and scroll into nanotubes after these nanosheets reach a certain size, because of mechanical tensions or the asymmetrical chemical environment . Lu et al exhibited that the layered sodium titanates are formed by occurring the rapid nanoparticle coalescing process at the early stages of the hydrothermal reaction .…”

Section: Results and Discussionmentioning

confidence: 99%

“…The nanosheets will bend and scroll into nanotubes after these nanosheets reach a certain size, because of mechanical tensions or the asymmetrical chemical environment. 70 Lu et al exhibited that the layered sodium titanates are formed by occurring the rapid nanoparticle coalescing process at the early stages of the hydrothermal reaction. 71 During this process, the smaller nanoparticles aggregate into larger powders mainly by the oriented attachment (OA) mechanism.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Triple Axial Coelectrospun Multifunctional Double-Shell TiO₂@ZnO Carbon Hollow Nanofibrous Mat Transformed to C-Attached TiO₂ Brush-Like Nanotube Arrays: An Mo⁶⁺ Adsorbent Nonwoven Mat

Shami

Sharifi-Sanjani

Khoee

et al. 2014

Ind. Eng. Chem. Res.

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A triple axial co-electrospinning procedure followed with a two-step heat treatment was successfully employed to fabricate continuous heterostructured multifunctional double-shell TiO 2 @ZnO graphite carbon non-woven hollow nanofibrous mats. The as-synthesized TiO 2 @ZnO/C hollow heterojunctions were transformed to 3D high surface area rutile TiO 2 brush-like nanotube arrays attached onto carbon tubular mats under the alkaline hydrothermal and ion exchange processes combined with the annealing. The obtained TiO 2 nanotubes have a typical inner diameter of about 3.5 nm, wall thickness of about 4.0 nm, and length up to several hundred nanometers. Mathematical models, as well as the experimental results exhibited a higher self-adsorption capacity of Mo 6+ pollutant over C-attached TiO 2 nanotubes can be attributed to the larger surface area, providing more active sites for a contact with the reactants and pollutants.Furthermore, the kinetic studies suggested that the pseudo-second-order model is suitable to describe the adsorption mechanism of Mo 6+ over the as-synthesized hollow nanostructures.

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Economical and green synthesis of Cu nanowires and their use as a catalyst for selective hydrogenation of cinnamaldehyde

et al. 2014

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The reduction of Cu(OH) 2 by hydrazine in a concentrated NaOH solution containing ethylenediamine at 70 C has been employed to prepare Cu nanowires. The net change during nanowire synthesis is that the consumption of Cu(OH) 2 and hydrazine gives rise to the formation of Cu nanowires, N 2 and H 2 O, which make it possible for us to endlessly reuse the produced wastewater after the removal of Cu nanowires. By controlling the re-added amounts of hydrazine and ethylenediamine in the case of reusing the wastewater, we have found that the morphology of Cu nanowires is kept almost unchanged even though the wastewater is recycled more than ten times. The recycle of the endlessly reusable wastewater not only significantly reduces the cost of Cu nanowires but also makes this approach environmentally friendly. In addition, as a catalyst for selective hydrogenation of cinnamaldehyde, the asformed Cu nanowires show different catalytic performance in comparison with the unsupported Cu nanoparticles.

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Synthesis and Growth Mechanism of Net-like Titanate Nanowire Films via Low-temperature and Low-alkali-concentration Route

Cited by 3 publications

References 17 publications

Preparation of Na₂Ti₃O₇/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Preparation of Na₂Ti₃O₇/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Triple Axial Coelectrospun Multifunctional Double-Shell TiO₂@ZnO Carbon Hollow Nanofibrous Mat Transformed to C-Attached TiO₂ Brush-Like Nanotube Arrays: An Mo⁶⁺ Adsorbent Nonwoven Mat

Economical and green synthesis of Cu nanowires and their use as a catalyst for selective hydrogenation of cinnamaldehyde

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Synthesis and Growth Mechanism of Net-like Titanate Nanowire Films via Low-temperature and Low-alkali-concentration Route

Cited by 3 publications

References 17 publications

Preparation of Na2Ti3O7/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Preparation of Na2Ti3O7/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Triple Axial Coelectrospun Multifunctional Double-Shell TiO2@ZnO Carbon Hollow Nanofibrous Mat Transformed to C-Attached TiO2 Brush-Like Nanotube Arrays: An Mo6+ Adsorbent Nonwoven Mat

Economical and green synthesis of Cu nanowires and their use as a catalyst for selective hydrogenation of cinnamaldehyde

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Preparation of Na₂Ti₃O₇/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Preparation of Na₂Ti₃O₇/Titanium Peroxide Composites and Their Adsorption Property on Cationic Dyes

Triple Axial Coelectrospun Multifunctional Double-Shell TiO₂@ZnO Carbon Hollow Nanofibrous Mat Transformed to C-Attached TiO₂ Brush-Like Nanotube Arrays: An Mo⁶⁺ Adsorbent Nonwoven Mat