Hydrothermally synthesized highly dispersed Na2Ti3O7 nanotubes and their photocatalytic degradation and H2 evolution activity under UV and simulated solar light irradiation

Vattikuti, S.V. Prabhakar; Reddy, Police Anil Kumar; Bandaru, Narendra; Shim, Jaesool; Byon, Chan

doi:10.1007/s11814-017-0355-z

Cited by 12 publications

(3 citation statements)

References 20 publications

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“…Such 1D or 2D nanostructures are in favor of the applications of alkaline metal titanates on energy and environmental catalysis, as they not only shorten the migration distance to photocatalysts’ surface for electrons and holes, but also offer more surface active reaction sites, namely, simultaneously increasing charge migration efficiency (η2) and redox reaction efficiency (η3). [ 47 ]…”

Section: The Classification and Property For Titanatesmentioning

confidence: 99%

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

Wang

Zhang

2021

Adv Funct Materials

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Global warming, energy deficiency, and environmental deterioration triggered by burning fossil fuels, may severely impair economic development and human life and health. Green solar power, mechanical energy, and temperature fluctuation heat energy abound in nature and are readily accessible. Thanks to various appealing characteristics, titanates are universally employed to harvest these sustainable energy sources to produce renewable fuels through photocatalysis, piezocatalysis, and pyrocatalysis, alleviating above serious issues. In this review, the research progress in energy catalysis driven by solar light, mechanical stress, and temperature fluctuation over titanates is comprehensively described. It starts with the classification and introduction of diverse titanates. Next, the main methods for preparing titanates are introduced. Highlighted are titanates acting as cocatalysts, photocatalysts, piezocatalysts, and pyrocatalysts to participate in water splitting reaction for H 2 evolution and atmospheric CO 2 reduction conversion into CO or hydrocarbons. In particular, the material modification strategies for improving photocatalytic performance are discussed. Finally, the rosy prospects of the future development of energy catalysis application for titanates are looked into.

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Section: The Classification and Property For Titanatesmentioning

confidence: 99%

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

Wang

Zhang

2021

Adv Funct Materials

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“…Considering the good storage performance, some electrode materials have been modified through combination or doping with other suitable materials such as Ni 3 S 4 @MoS 2 [27], WO 3 @TiO 2 [28] and ZnCo 2 O 4 @MnCo 2 O 4 [29]. At the same time, the electrical conductivity of composite materials can be greatly improved by the heterojunction as well [30], which can provide unequaled storage performance and be the ideal materials for storage devices [31]. Manganese oxides have a wide potential window (reach up to 1 V), which is compatible with the sodium and may be used as an ideal material to modify alkali metals such as NiCo 2 S 4 @MnO 2 , SnO 2 @MnO 2 [32,33], and MnO 2 @CoNiO 2 [34].…”

Section: Introductionmentioning

confidence: 99%

In situ growth of MnO@Na₂Ti₆O₁₃ heterojunction nanowires for high performance supercapacitors

Wan

Guan

et al. 2019

Nanotechnology

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One-dimensional tunnel and layer frame crystal structure materials are extremely attractive for energy storage in electrode materials. The energy storage properties of the electrode materials depend on their conductivity. Furthermore, the conductivity of electrode materials can be tailored through combination or doping with other materials, which transforms their properties from semiconductor to semimetallic or metallic and allow them to show unequaled performance for storage devices. In this work, heterostructures of manganese oxide (MnO) and modified sodium titanate (Na 2 Ti 6 O 13 ) (MnO@Na 2 Ti 6 O 13 ) nanowires are attained by the in situ thermal decomposition method. The heterojunction between MnO and Na 2 Ti 6 O 13 allows the semiconductor properties of pure Na 2 Ti 6 O 13 to show remarkable metallic behavior for improving the electrochemical performance. The capacitance of MnO@Na 2 Ti 6 O 13 heterojunction nanowires can reach 272.3 F g −1 , a power intensity of 250 W kg −1 at the energy density of 37.83 Wh kg −1 and retain 5000 W kg −1 at 6.67 Wh kg −1 as well. The energy storage mechanism of the MnO@Na 2 Ti 6 O 13 heterostructure is studied by density functional theory. All of the results show that the MnO@Na 2 Ti 6 O 13 heterostructure material has the potential to be an excellent supercapacitor material in the future.

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“…On the basis of its superior physical and electrical properties, it was demonstrated that NTO has the potential to be used as anode material for ion batteries. [21][22][23][24][25][26] In addition, NTO nanomaterials were also utilized as catalysts [27][28][29][30] and adsorbents. [31] However, reports of super-amphiphilic NTO materials are scarce.…”

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confidence: 99%

Super‐Amphiphilic Na₂Ti₃O₇ Nanofibrous Film Enabling Water–Oil Miscibility

Hua

Huang

et al. 2022

Adv Materials Inter

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Super-amphiphilic materials typically exhibit superhydrophilicity and superoleophilicity (contact angles for water and oil are less than 10°). In the 1990s, UV irradiation of titanium dioxide (TiO 2 ) produced super-amphiphilic characteristics. [13] There are now two ways to switch the hydrophilic/hydrophobic qualities of materials: (i) certain materials, such as TiO 2 , ZnO, and SnO 2 , are stimulated to exhibit superhydrophilic characteristics under UV light circumstances. [14,15] (ii) Increase the hydrophilic material surface roughness or generate a rough surface by applying a hydrophilic coating. [16] Based on the classical Wenzel [17] and Cassie [18] models, surface roughness can adjust the hydrophilic/ hydrophobic properties of the materials.Recent attention has been drawn to Ti-based materials due to their environmental friendliness, abundant resources, and inexpensive cost. [19,20] As a type of Ti-based materials, Na 2 Ti 3 O 7 (NTO) has demonstrated a wide range of potential applications in several industries. On the basis of its superior physical and electrical properties, it was demonstrated that NTO has the potential to be used as anode material for ion batteries. [21][22][23][24][25][26] In addition, NTO nanomaterials were also utilized as catalysts [27][28][29][30] and adsorbents. [31] However, reports of super-amphiphilic NTO materials are scarce. There are numerous possible uses for super-amphiphilic materials, including the fabrication of implanted devices, the removal of low-density lipoprotein, and the improvement of the cycle life of lithium-sulfur batteries. Therefore, it is essential to investigate the preparation methods and performance of superamphiphilic materials.This paper shows that NTO have both hydrophilic and oleophilic (amphiphilic) properties. The film has a large storage capacity for water and poly-alpha-olefin, up to 32-36 times its original weight. The discovery of NTO nanofibrous film's super-amphiphilic behavior has significant implications for the development of superwetting materials and their potential applications in the oil emulsion purification and catalyst anchoring industries. Experimental Section Construction of NTO Nanofibrous FilmPure titanium (Ti) substrates (10 mm × 10 mm × 0.5 mm) were cleaned at room temperature with acetone and deionized water before reacting with NaOH solution (1 mol L −1 ) at 230 °C Due to their extraordinary affinity for both water and oil, super-amphiphilic materials have garnered considerable interest. A Na 2 Ti 3 O 7 (NTO) film with super-amphiphilic properties that enable water and oil miscibility is offered. Multiple nanofibrous 3D porous nanostructures compose the super-amphiphilic NTO layer. Up to 32-36 times its weight, the film has a high absorption capacity for water and poly-alpha-olefin (PAO). The average miscibility ratio of water to oil in the film is ≈6:5. The discovery of NTO nanofibrous film's super-amphiphilic behavior has significant implications for the development of superwetting materials and their potential applicatio...

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Hydrothermally synthesized highly dispersed Na2Ti3O7 nanotubes and their photocatalytic degradation and H2 evolution activity under UV and simulated solar light irradiation

Cited by 12 publications

References 20 publications

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

In situ growth of MnO@Na₂Ti₆O₁₃ heterojunction nanowires for high performance supercapacitors

Super‐Amphiphilic Na₂Ti₃O₇ Nanofibrous Film Enabling Water–Oil Miscibility

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Hydrothermally synthesized highly dispersed Na2Ti3O7 nanotubes and their photocatalytic degradation and H2 evolution activity under UV and simulated solar light irradiation

Cited by 12 publications

References 20 publications

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

Versatile Titanates: Classification, Property, Preparation, and Sustainable Energy Catalysis

In situ growth of MnO@Na2Ti6O13 heterojunction nanowires for high performance supercapacitors

Super‐Amphiphilic Na2Ti3O7 Nanofibrous Film Enabling Water–Oil Miscibility

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In situ growth of MnO@Na₂Ti₆O₁₃ heterojunction nanowires for high performance supercapacitors

Super‐Amphiphilic Na₂Ti₃O₇ Nanofibrous Film Enabling Water–Oil Miscibility