Tungsten Oxide Single Crystal Nanosheets for Enhanced Multichannel Solar Light Harvesting

Substoichiometric tungsten oxide single-crystal nanosheets are successfully prepared via the exfoliation of layered tungstic acid and subsequent introduction of oxygen vacancies. The combination of different strategies, i.e., 2D-structure construction, the introduction of surface oxygen vacancies, and the creation of localized surface plasmon resonance can promote the light-harvesting performance of tungsten oxide through accumulative and synergistic effects.

[1]  T. Ishihara,et al.  Recent Progress in Two-Dimensional Oxide Photocatalysts for Water Splitting. , 2014, The journal of physical chemistry letters.

[2]  L. Gao,et al.  Size- and shape-controlled conversion of tungstate-based inorganic-organic hybrid belts to WO3 nanoplates with high specific surface areas. , 2008, Small.

[3]  Yichuan Ling,et al.  Hydrogen-treated TiO2 nanowire arrays for photoelectrochemical water splitting. , 2011, Nano letters.

[4]  H. Kominami,et al.  Visible-light-induced hydrogen and oxygen formation over Pt/Au/WO₃ photocatalyst utilizing two types of photoabsorption due to surface plasmon resonance and band-gap excitation. , 2014, Journal of the American Chemical Society.

[5]  Carsten Rockstuhl,et al.  A plasmonic photocatalyst consisting of silver nanoparticles embedded in titanium dioxide. , 2008, Journal of the American Chemical Society.

[6]  Xiaobo Chen,et al.  The electronic origin of the visible-light absorption properties of C-, N- and S-doped TiO2 nanomaterials. , 2008, Journal of the American Chemical Society.

[7]  Jianguo Liu,et al.  Ultrathin, single-crystal WO(3) nanosheets by two-dimensional oriented attachment toward enhanced photocatalystic reduction of CO(2) into hydrocarbon fuels under visible light. , 2012, ACS applied materials & interfaces.

[8]  J. Augustynski,et al.  Silver nanoparticle induced photocurrent enhancement at WO3 photoanodes. , 2010, Angewandte Chemie.

[9]  Xiaobo Chen,et al.  Increasing Solar Absorption for Photocatalysis with Black Hydrogenated Titanium Dioxide Nanocrystals , 2011, Science.

[10]  Can Li,et al.  Roles of cocatalysts in photocatalysis and photoelectrocatalysis. , 2013, Accounts of chemical research.

[11]  W. Ingler,et al.  Efficient Photochemical Water Splitting by a Chemically Modified n-TiO2 , 2002, Science.

[12]  M. Batzill,et al.  A two-dimensional phase of TiO₂ with a reduced bandgap. , 2011, Nature chemistry.

[13]  P. Fornasiero,et al.  Nonaqueous synthesis of TiO2 nanocrystals using TiF4 to engineer morphology, oxygen vacancy concentration, and photocatalytic activity. , 2012, Journal of the American Chemical Society.

[14]  Arnan Mitchell,et al.  Nanostructured Tungsten Oxide – Properties, Synthesis, and Applications , 2011 .

[15]  S. K. Deb.  Electron spin resonance of defects in single crystal and thin films of tungsten trioxide , 1977 .

[16]  Stephen B. Cronin,et al.  A Review of Surface Plasmon Resonance‐Enhanced Photocatalysis , 2013 .

[17]  A Paul Alivisatos,et al.  Tunable localized surface plasmon resonances in tungsten oxide nanocrystals. , 2012, Journal of the American Chemical Society.

[18]  A. Fujishima,et al.  Electrochemical Photolysis of Water at a Semiconductor Electrode , 1972, Nature.

[19]  J. Augustynski,et al.  Enhanced Visible Light Conversion Efficiency Using Nanocrystalline WO3 Films , 2001 .

[20]  B. Ohtani,et al.  Pristine simple oxides as visible light driven photocatalysts: highly efficient decomposition of organic compounds over platinum-loaded tungsten oxide. , 2008, Journal of the American Chemical Society.

[21]  Xiuli Wang,et al.  Enhancement of visible-light-driven O2 evolution from water oxidation on WO3 treated with hydrogen , 2013 .

[22]  Jian Zhen Ou,et al.  Tunable Plasmon Resonances in Two‐Dimensional Molybdenum Oxide Nanoflakes , 2014, Advanced materials.

[23]  M. Strano,et al.  Synthesis of Atomically Thin WO3 Sheets from Hydrated Tungsten Trioxide , 2010 .

[24]  Wei Chen,et al.  Synthesis and characterization of ultrathin WO3 nanodisks utilizing long-chain poly(ethylene glycol). , 2006, The journal of physical chemistry. B.

[25]  B. Desbat,et al.  Infrared and Raman spectroscopies of rf sputtered tungsten oxide films , 1988 .

[26]  R. Asahi,et al.  Visible-Light Photocatalysis in Nitrogen-Doped Titanium Oxides , 2001, Science.

[27]  B. Liu,et al.  Large-scale synthesis of transition-metal-doped TiO2 nanowires with controllable overpotential. , 2013, Journal of the American Chemical Society.

[28]  K. Domen,et al.  Visible-light-driven nonsacrificial water oxidation over tungsten trioxide powder modified with two different cocatalysts , 2012 .

[29]  Hiromi Yamashita,et al.  Surfactant-free nonaqueous synthesis of plasmonic molybdenum oxide nanosheets with enhanced catalytic activity for hydrogen generation from ammonia borane under visible light. , 2014, Angewandte Chemie.

[30]  Chongyin Yang,et al.  Core-shell nanostructured "black" rutile titania as excellent catalyst for hydrogen production enhanced by sulfur doping. , 2013, Journal of the American Chemical Society.

[31]  Xiaobo Chen,et al.  Titanium dioxide-based nanomaterials for photocatalytic fuel generations. , 2014, Chemical reviews.

[32]  P. Ordejón,et al.  Designed Self‐Doped Titanium Oxide Thin Films for Efficient Visible‐Light Photocatalysis , 2002 .

[33]  A. Kudo,et al.  Heterogeneous photocatalyst materials for water splitting. , 2009, Chemical Society reviews.

[34]  Thomas F. Jaramillo,et al.  Enhancement of Photocatalytic and Electrochromic Properties of Electrochemically Fabricated Mesoporous WO3 Thin Films , 2003 .

[35]  Xi‐Wen Du,et al.  CdS Nanoflake Arrays for Highly Efficient Light Trapping , 2015, Advanced materials.

[36]  H. Sugihara,et al.  Cs-Modified WO3 Photocatalyst Showing Efficient Solar Energy Conversion for O2 Production and Fe (III) Ion Reduction under Visible Light , 2010 .

[37]  Landong Li,et al.  Synergetic promotion of the photocatalytic activity of TiO2 by gold deposition under UV-visible light irradiation. , 2013, Chemical communications.

[38]  J. M. Coronado,et al.  Development of alternative photocatalysts to TiO2: Challenges and opportunities , 2009 .

[39]  Fenggong Wang,et al.  Doping of WO3 for Photocatalytic Water Splitting: Hints from Density Functional Theory , 2012 .

[40]  Di Chen,et al.  Hierarchical WO3 Hollow Shells: Dendrite, Sphere, Dumbbell, and Their Photocatalytic Properties , 2008 .

[41]  S. Linic,et al.  Plasmonic-metal nanostructures for efficient conversion of solar to chemical energy. , 2011, Nature materials.

[42]  G. Gary Wang,et al.  Hydrogen-treated WO3 nanoflakes show enhanced photostability , 2012 .

[43]  A. Mills,et al.  Photo-oxidation of water sensitized by WO3 powder , 1982 .

[44]  E. Salje.  Lattice dynamics of WO3 , 1975 .

[45]  Frank E. Osterloh,et al.  Inorganic nanostructures for photoelectrochemical and photocatalytic water splitting. , 2013, Chemical Society reviews.