Large-scale synthesis of uniform silver orthophosphate colloidal nanocrystals exhibiting high visible light photocatalytic activity.

Silver orthophosphate nanocrystals with controlled particle size have been synthesized using a simple, reproducible and easily scaled up route based on the reaction between silver ions, oleylamine and phosphoric acid. The obtained nanocrystals are highly uniform in size and exhibit high visible light activity for the photodecomposition of organic compounds.

[1]  T. Do,et al.  Monodisperse samarium and cerium orthovanadate nanocrystals and metal oxidation states on the nanocrystal surface. , 2009, Langmuir : the ACS journal of surfaces and colloids.

[2]  G. H. Nancollas,et al.  Calcium orthophosphates: crystallization and dissolution. , 2008, Chemical reviews.

[3]  M. Grätzel Photoelectrochemical cells : Materials for clean energy , 2001 .

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

[5]  Jun-Yan Zhang,et al.  Silver nanoparticles capped by oleylamine: formation, growth, and self-organization. , 2007, Langmuir : the ACS journal of surfaces and colloids.

[6]  Hironori Arakawa,et al.  Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst , 2001, Nature.

[7]  C. Tripp,et al.  Interaction of silicon surfaces silanized with octadecylchlorosilanes with octadecanoic acid and octadecanamine studied by ellipsometry, X-ray photoelectron spectroscopy and reflectance Fourier transform infrared spectroscopy , 1992 .

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

[9]  M. Srinivasan,et al.  Self-assembled molecular films of aminosilanes and their immobilization capacities. , 2004, Langmuir : the ACS journal of surfaces and colloids.

[10]  L. Brus,et al.  Quantum crystallites and nonlinear optics , 1991 .

[11]  A. Kudo,et al.  Visible-light-induced H2 evolution from an aqueous solution containing sulfide and sulfite over a ZnS-CuInS2-AgInS2 solid-solution photocatalyst. , 2005, Angewandte Chemie.

[12]  Hui Yang,et al.  An orthophosphate semiconductor with photooxidation properties under visible-light irradiation. , 2010, Nature materials.

[13]  Xiaoyan Qin,et al.  Ag@AgCl: a highly efficient and stable photocatalyst active under visible light. , 2008, Angewandte Chemie.

[14]  Yadong Li,et al.  Self-assembly of uniform hexagonal yttrium phosphate nanocrystals. , 2006, Chemical communications.

[15]  C. Calvo,et al.  A new investigation of the structure of silver orthophosphate , 1978 .

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

[17]  M. Antonietti,et al.  A metal-free polymeric photocatalyst for hydrogen production from water under visible light. , 2009, Nature materials.

[18]  P. Schmidt,et al.  Inorganic Luminescent Materials: 100 Years of Research and Application , 2003 .

[19]  Wilfried Weigel,et al.  XPS and NEXAFS studies of aliphatic and aromatic amine species on functionalized surfaces , 2009 .

[20]  P. Kamat PHOTOCHEMISTRY ON NONREACTIVE AND REACTIVE (SEMICONDUCTOR) SURFACES , 1993 .

[21]  T. Do,et al.  A new route for the synthesis of uniform nanozeolites with hydrophobic external surface in organic solvent medium. , 2007, Journal of the American Chemical Society.

[22]  A. Alivisatos Perspectives on the Physical Chemistry of Semiconductor Nanocrystals , 1996 .

[23]  T. Do,et al.  Synthesis of Nanoporous Network Materials with High Surface Areas from the Cooperative Assemblage of Alkyl-Chain-Capped Metal/Metal Oxide Nanoparticles , 2008 .