photocatalysis – Page 2 – TechConnect Briefs

Modifications of graphitic C3N4 with multi-metal oxides for enhanced visible-light active photocatalysis

Masih D., Rohani S., University of Western Ontario, CA

Bulk graphitic C3N4 (g-C3N4) is a p-type semiconductor with band gap of 2.7 eV. For photocatalytic water splitting, valance and conduction band gap positions of g-C3N4 sandwich both oxygen and hydrogen evolution potentials, making g-C3N4 [...]

Reduced molybdenum oxide MoOx as a model catalyst for methanol photosynthesis from carbon dioxide and water

Silaev I.V., Khubezhov S.A., Tvauri I.V., Kaloeva A.G., Kibizov D.D., Ramonova A.G., Grigorkina G.S., Demeev Z.S., Bliev A.P., Sekiba D., Ogura S., Fukutani K., Magkoev T.T., North Ossetian State University, RU

Corresponding author, e-mail: t_magkoev@mail.ru (Tamerlan Magkoev) The work deals with the design of molybdenum oxide MoO2 with a specific density of anionic vacancies for methanol synthesis from carbon dioxide and water. Surface sensitive studies were [...]

Photocatalysis of Rhodamine B in water using nanotechnology

Yu Z., Li Z., California State Polytechnic University, Pomona, US

There are several techniques currently used for water organic contaminants removal, including Activated Carbon Adsorption, Chlorination, UV Photolysis, Ozonation, and Ferrate Oxidation. Although these techniques are useful in treating contaminated water, they have limitations in [...]

Advanced oxidation processes for water purification: compact vs nanoporous anodic TiO2

Piazza V., Diamanti M.V., Mazare A., Pedeferri MP., Schmuki P., Politecnico di Milano, IT

In the last years, research on TiO2 engineering has been dedicated mostly to thin films for environmental and energetic applications, such as advanced oxidation processes for water purification and dye-sensitized solar cells. Anodic oxidation can [...]

Manganese Doped Zinc Oxide Nanoparticles (MnxZn1-xO): Synthesis, Magnetic Properties and Applications: Photocatalytic and Chemical Sensing

Chauhan M.S., Chauhan S., Chauhan M.S., Chauhan S., Kumar R., Himachal Pradesh University, Shimla, IN

Manganese doped zinc oxide nanoparticles (NPs), MnxZn1-xO; x = 0.01, 0.02, 0.05, 0.1 and 0.2 have been fabricated by the simple solution process. Well-defined morphologies and well-crystallinity of these nanoparticles have been verified with the [...]

Flower-like TiO2 Nanostructures: Synthesis,Characterization and Photocatalytic Properties

Li Y., Liu E., Fan J., Fan X., Hu X., Liu E., Fan J., Fan X., Wu H., Ma Y., Tang C., Northwest University, CN

In this paper three-dimensional (3D) titania nanostructures assembled with rutile nanorods have been fabricated via a hydrothermal reaction route. The effects of preparation parameters including the reaction temperatures and the reactant concentrations, on the microstructure, [...]

High photocatalytic activity of hydrogen production from water over Fe doped and Ag deposited anatase TiO2 nanotube arrays

Fan J., Fan X., Fan J., Fan X., Hu X., Liu E., Kang L., Tang C., Wu H., Li Y., Liu E., Ma Y., Northwest University, CN

Recently, studies revealed that noble metal (Au, Ag, Pd) nanoparticles can improve the photoresponse property of TiO2 in the visible region based on the localized surface plasmon resonance (LSPR) effect, and thus enhance the activity [...]

Microwave-assisted hydrothermal synthesis of Cu-doped titanate nanotubes: photoluminescence and photocatalysis properties

Manfroi D.C., Andrade L.P., Cavalheiro A.A., Jos A.A., Teixeira G.F., Perazolli L.A., Varela J.A., Zaghete M.A., Universidade Estadual Paulista, BR

Alkali titanates have been intensively investigated mostly because of their properties. And the interest for transition metal doping of 1D titanate nanostructures is enormous, especially copper. In the present work we report the synthesis of [...]