Highly Effective Silver/Semiconductor Photocatalytic Composites Prepared by a Silver Mirror Reaction

Nano silver particles loaded on micrometer-size TiO2, nanosize TiO2, and BiVO4 were prepared by a silver mirror reaction (SMR), which is an old and well-known method. Morphology of silver on the surface of semiconductor particles was characterized by energy dispersion spectrum, transmission electron microscopy, and electron backscatter diffraction. The photocatalytic activities of these photocatalysts were evaluated by the degradation of methyl orange and hydrogen production under UV and visible light irradiation, respectively. The experimental results indicated that the photocatalytic activities of Ag/TiO2 and Ag/BiVO4 composites prepared by the SMR were remarkably higher than those prepared by the photoinduced deposition method.

[1]  Junying Zhang,et al.  Influence of Metal (Au, Ag) Micro-Grid on the Photocatalytic Activity of TiO2 Film , 2008 .

[2]  K. O’Shea,et al.  Adsorption and photocatalyzed oxidation of methylated arsenic species in TiO2 suspensions. , 2007, Environmental science & technology.

[3]  Y. Ku,et al.  Effect of solution pH on the adsorption and photocatalytic reaction behaviors of dyes using TiO2 and nafion-coated TiO2 , 2007 .

[4]  T. Lee,et al.  Photocatalytic Production of H2 on Nanocomposite Catalysts , 2007 .

[5]  Y. Ku,et al.  Effects of solution pH and UV irradiation on the streaming potential of the titanium dioxide membranes , 2006 .

[6]  M. Anderson,et al.  An iron-modified silica nanofiltration membrane: Effect of solution composition on salt rejection , 2006 .

[7]  M. Fuji,et al.  Characterization of concentrated colloidal ceramics suspension: a new approach. , 2006, Journal of colloid and interface science.

[8]  N. H. Tkachenko,et al.  The influence of ionic and nonionic surfactants on aggregative stability and electrical surface properties of aqueous suspensions of titanium dioxide. , 2006, Journal of colloid and interface science.

[9]  W. Janusz,et al.  Coadsorption of Cd(II) and oxalate ions at the TiO2/electrolyte solution interface. , 2006, Journal of colloid and interface science.

[10]  K. Domen,et al.  Photocatalyst releasing hydrogen from water , 2006, Nature.

[11]  Jinlong Zhang,et al.  A novel deposition precipitation method for preparation of Ag-loaded titanium dioxide , 2005 .

[12]  Shigeru Kohtani,et al.  Photooxidation reactions of polycyclic aromatic hydrocarbons over pure and Ag-loaded BiVO4 photocatalysts , 2005 .

[13]  Jerzy Walendziewski,et al.  Photocatalytic Water Splitting over Pt−TiO2 in the Presence of Sacrificial Reagents , 2005 .

[14]  A. Kudo,et al.  Adsorptive and photocatalytic properties of Ag-loaded BiVO4 on the degradation of 4-n-alkylphenols under visible light irradiation , 2005 .

[15]  G. Stucky,et al.  Ag/AgCl-Loaded Ordered Mesoporous Anatase for Photocatalysis , 2005 .

[16]  Wolfgang M. Sigmund,et al.  Novel Powder-Processing Methods for Advanced Ceramics , 2004 .

[17]  G. Calzaferri,et al.  Water splitting with silver chloride photoanodes and amorphous silicon solar cells , 2004, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

[18]  Jinhua Ye,et al.  Photophysical and Photocatalytic Activities of a Novel Photocatalyst BaZn1/3Nb2/3O3 , 2004 .

[19]  E. Fanizza,et al.  Role of Metal Nanoparticles in TiO2/Ag Nanocomposite-Based Microheterogeneous Photocatalysis , 2004 .

[20]  A. Kudo,et al.  Photocatalytic activities of noble metal ion doped SrTiO3under visible light irradiation , 2004 .

[21]  E. Wolf,et al.  Catalysis with TiO2/gold nanocomposites. Effect of metal particle size on the Fermi level equilibration. , 2004, Journal of the American Chemical Society.

[22]  M. L. Curri,et al.  Photocatalytic synthesis of silver nanoparticles stabilized by TiO2 nanorods: a semiconductor/metal nanocomposite in homogeneous nonpolar solution. , 2004, Journal of the American Chemical Society.

[23]  K. W. Kwong,et al.  Ambient Light Reduction Strategy to Synthesize Silver Nanoparticles and Silver-Coated TiO2 with Enhanced Photocatalytic and Bactericidal Activities , 2003 .

[24]  Jinhua Ye,et al.  Photophysical and photocatalytic properties of new photocatalysts MCrO4 (M=Sr, Ba) , 2003 .

[25]  Yuexiang Li,et al.  Photocatalytic production of hydrogen in single component and mixture systems of electron donors and monitoring adsorption of donors by in situ infrared spectroscopy. , 2003, Chemosphere.

[26]  H. Arakawa,et al.  Significant effect of iodide addition on water splitting into H2 and O2 over Pt-loaded TiO2 photocatalyst: suppression of backward reaction , 2003 .

[27]  G. Calzaferri,et al.  The Silver Chloride Photoanode in Photoelectrochemical Water Splitting , 2002 .

[28]  R. Hoffmann,et al.  Electronic properties of the silver-silver chloride cluster interface. , 2002, Chemistry.

[29]  M. Sökmen,et al.  Disinfection of E. coli by the Ag-TiO2/UV system: lipidperoxidation , 2001 .

[30]  T. Pal,et al.  Size Regime Dependent Catalysis by Gold Nanoparticles for the Reduction of Eosin , 2001 .

[31]  Jinhua Ye,et al.  Substitution Effects of In3+ by Al3+ and Ga3+ on the Photocatalytic and Structural Properties of the Bi2InNbO7 Photocatalyst , 2001 .

[32]  Darlene K. Slattery,et al.  Photocatalytic Inhibition of Algae Growth Using TiO2, WO3, and Cocatalyst Modifications , 2000 .

[33]  K. Takeuchi,et al.  Photocatalytic decomposition of N2O on highly dispersed Ag+ ions on TiO2 prepared by photodeposition , 2000 .

[34]  S. Kitagawa,et al.  H-2 generation by cycling dark adsorption and successive photoinduced desorption of 2-mercaptopyridine on/from Ag-core/Pt-shell nanoparticles loaded on TiO2 , 2000 .

[35]  K. O’Shea,et al.  The Influence of Mineralization Products on the Coagulation of TiO2 Photocatalyst , 1999 .

[36]  Yong Cao,et al.  The oxidative dehydrogenation of methanol over a novel low‐loading Ag/SiO2–TiO2 catalyst , 1998 .

[37]  A. Sclafani,et al.  Influence of Silver Deposits on the Photocatalytic Activity of Titania , 1997 .

[38]  A. Stavropoulos,et al.  Role of Photoinduced Charge Carrier Separation Distance in Heterogeneous Photocatalysis: Oxidative Degradation of CH3OH Vapor in Contact with Pt/TiO2 and Cofumed TiO2−Fe2O3 , 1996 .

[39]  A. Lim,et al.  Prominent ferroelastic domain walls in BiVO4 crystal , 1995 .

[40]  J. Yates,et al.  Photocatalysis on TiO2 Surfaces: Principles, Mechanisms, and Selected Results , 1995 .

[41]  W. Jardim,et al.  Photocatalytic degradation of phenol and chlorinated phenols using AgTiO2 in a slurry reactor , 1994 .

[42]  Aaron Wold,et al.  Photocatalytic properties of titanium dioxide (TiO2) , 1993 .

[43]  Mitsuru Tanaka,et al.  Pressure effect on the Krafft points of ionic surfactants , 1982 .

[44]  A. Sleight,et al.  Crystal growth and structure of BiVO4 , 1979 .

[45]  R. S. Roth,et al.  Synthesis And Stability Of Bismutotantalite, Stibiotantalite And Chemically Similar AB04 Compounds , 1963 .

[46]  J. Macák,et al.  Photocatalytic activity of TiO2 nanotube layers loaded with Ag and Au nanoparticles , 2008 .

[47]  T. Peng,et al.  Photocatalytic H2 production from methanol aqueous solution over titania nanoparticles with mesostructures , 2008 .

[48]  N. Jana,et al.  Growing Small Silver Particle as Redox Catalyst , 1999 .