Nanostructured Titania: the current and future promise of Titania nanotubes

Schwartzenberg, Kevin C.; Gray, Kimberly A.

doi:10.1039/c2cy00538g

Cited by 23 publications

(17 citation statements)

References 56 publications

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“…1 In this aspect, mixed phased materials combining the anatase and rutile crystal phases of TiO 2 nanotubes have been reported for CO 2 photoreduction under UV and visible light. 80 The production rate of CH 4 decreased with increasing rutile phase under UV irradiation.…”

Section: Titania Nanotubesmentioning

confidence: 99%

Photocatalytic CO2 reduction by TiO2 and related titanium containing solids

Dhakshinamoorthy

Navalón

Corma

et al. 2012

Energy Environ. Sci.

521

324

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The shortage of fossil fuels and the need to find alternative renewable and sustainable fuels for transportation are triggering an increasing interest in the photocatalytic reduction of CO 2 . In this review, we have focused on titanium containing photocatalysts that effect the reduction of CO 2 to fuels. The various products that are more generally formed are CH 4 , CH 3 OH, CO as well as HCOOH. This review has been organized primarily depending on the type of titanium material used as the photocatalyst. The list includes pure TiO 2 as well as metal-and non metal-doped titania, noble metals supported on titania and micro-/mesoporous titanosilicates or porous matrices containing titania clusters. In a general introduction we comment on the limitations of the current approaches and the various possibilities and conditions for performing the irradiation. In a final section, we also give our view on future developments and open issues to be addressed in this field.

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Section: Titania Nanotubesmentioning

confidence: 99%

Photocatalytic CO2 reduction by TiO2 and related titanium containing solids

Dhakshinamoorthy

Navalón

Corma

et al. 2012

Energy Environ. Sci.

521

324

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“…TiNTs have potential applications in several fields; they are found in biomaterials, gas sensors, adsorbents, heterogeneous catalysis ( photocatalysis, oxidation reactions, organic synthesis, biomass,…), biological activities to remove bacteria from water, solar cells, Li battery production, and many others. In particular, TiNTs have been used as a catalytic support for different active species (metals, oxides and sulfides).…”

Section: Introductionmentioning

confidence: 99%

Study of 1D Titanate‐Based Materials –New Modification of the Synthesis Procedure and Surface Properties‐Recent Applications

Ameur

Bachir

2020

ChemistrySelect

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This paper represents a general study of titanate nanotubes (TiNTs) which are among the most important materials in the field of catalysis. This research work covers more than 100 publications about the formulation, characterisation and most recent applications of TiNTs. TiNTs can be prepared by different methods, namely the anodic deposition, sol-gel template synthesis and alkaline hydrothermal treatment. The present study focuses on the preparation of this tubular structure by alkaline treatment, using the latest and most recent processes that have been introduced in this method (stirring, acid nature, annealing temperature, etc). The surface properties, such as the point of zero charge (P.Z.C), acid-base nature and light absorption, of TiNTs are also evoked. In the end, some recent and important TiNTs applications in the field of renewable energies are reported (H 2 production and methanation). In addition, NO reduction, CO oxidation, photocatalysis and organic synthesis are also mentioned. Therefore, it may be said that this paper is a structured study about TiNTs for the purpose of making the reader aware of their importance, understand their synthesis, and know their scope of applications. To conclude, the most important data, acquired through various characterization techniques, are provided.[a] Dr.

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“…The photochemical fixation of CO2 to energy rich products is an attractive, albeit daunting, challenge that attracts a great deal of recent interest [1][2][3][4][5][6][7][8]. The reduction of CO2 has a steep uphill thermodynamic barrier and the overall feasibility of CO2 conversion is limited by the availability of efficient photo-active materials that can meet the energetic requirements, while also being optically matched to the solar spectrum [9].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional photo/thermal catalysts for the reduction of carbon dioxide

et al. 2017

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The photochemical fixation of CO2 to energy rich products for solar energy storage or feedstock chemicals is an attractive, albeit daunting, challenge. The overall feasibility of CO2 conversion is limited by the availability of efficient photo-active materials that meet the energetic requirements for CO2 reduction and are optically matched to the solar spectrum. Surface modification of TiO2 with earth abundant metal oxides presents one approach to develop visible active photocatalysts through band gap narrowing, while providing catalytic sites to lower the activation energy for CO2 reduction. In this work density functional theory was used to model the effect of surface modification of rutile and anatase using MnOx nanoclusters. The results indicate the formation of inter-band gap states following surface modification with MnOx, but surface water can change this. Oxygen vacancies are predicted to form in supported MnOx and the interaction with CO2 was investigated. MnOx-TiO2 was synthesized and characterised using surface analytical methods and photoelectrochemistry. The interaction of CO2 with the materials under irradiation was probed using in-situ FTIR to interrogate the role of oxygen vacancies in CO2 binding and reaction. These results provide insights into the requirements of a multifunctional catalyst for CO2 conversion

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Nanostructured Titania: the current and future promise of Titania nanotubes

Cited by 23 publications

References 56 publications

Photocatalytic CO2 reduction by TiO2 and related titanium containing solids

Photocatalytic CO2 reduction by TiO2 and related titanium containing solids

Study of 1D Titanate‐Based Materials –New Modification of the Synthesis Procedure and Surface Properties‐Recent Applications

Multifunctional photo/thermal catalysts for the reduction of carbon dioxide

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