Concept

Photocatalyse

Publications associées (400)

In-source photocatalytic reduction of disulfide bonds during laser desorption ionization

A photosensitive plate based on sintered TiO2 nanoparticles has been developed to carry out in-source photo-induced reductions for cleavage of disulfide bridges using glucose as a hole scavenger during laser desorption ionization. ...

2008

Determination of surface properties of various substrates using TiO2 nanorod coatings with tunable characteristics

Raffaella Buonsanti

We present a novel approach to cover different substrates with thin light-sensitive layers that consist of org.-capped TiO2 nanorods (NRs). Such NR-based coatings exhibit an increasing initial hydrophobicity with increasing NR length, and they demonstrate ...

2008

Electric and magnetic resonances in arrays of coupled gold nanoparticle in-tandem pairs

Olivier Martin

We present an experimental and theoretical study on the optical properties of arrays of gold nanoparticle in-tandem pairs (nanosandwiches). The well-ordered Au pairs with diameters down to 35 nm and separation distances down to 10 nm were fabricated using ...

Optical Society of America2008

Nanostructured ZnO-based layers deposited by non reactive rf magnetron sputtering on ultra-thin SiO2/Si through a stencil mask

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

In this paper, we study the localized deposition of ZnO micro and nanostructures deposited by non-reactive rf-magnetron sputtering through a stencil mask on ultra-thin (10 nm) SiO2 layers containing a single plane of silicon nanocrystals (NCs), synthetized ...

2008

Optical Kerr effect studies of the dynamics of confined water

Majed Chergui, Frank van Mourik, Erwin Portuondo Campa

Time resolved optical Kerr effect measurements have been used to det. the orientational dynamics of water in the pores of ZrO2 nanostructured films. We demonstrate that local heating effects can safely be ignored and present our results which are manifestl ...

2008

Single molecule fluorescence resonance energy transfer scanning near-field optical microscopy

Giovanni Dietler

The first single molecule fluorescence resonant energy transfer scanning near-field optical microscope (FRET SNOM) images of CdSe nanocrystal (donor) deposited onto the glass slide surface are presented. Images were obtained using the earlier proposed FRET ...

2008

Structural parameters controlling the performance of organized mesoporous TiO2 films in dye sensitized solar cells

Jun Ho Yum, Ladislav Kavan

Titanium dioxide films with organized mesoporous structure were investigated as photoanodes in dye sensitized solar cells. High-quality films were grown on FTO supports by implementing the protocol of supramolecular templating with an amphiphilic triblock ...

2008

Antimicrobial Surfaces through Natural Product Hybrids

Karl Gademann, Simone Bonazzi, Jean-Yves Wach

The power of two! A natural product hybrid (see structure) composed of a siderophore and an antibiotic separated by a poly(ethylene glycol) linker enables the preparation of antimicrobial and cell-resistant surfaces by a simple dip-and-rinse procedure. The ...

2008

Factors influencing photocatalytic drinking water detoxification and disinfection by suspended and fixed TiO2

Damien Gumy

The work presented in this thesis was carried out in the framework of two European projects: SOLWATER, and AQUACAT. The global objective of those projects, including the present work, was to set an autonomous system for drinking water production in develop ...

EPFL2007

Highly dispersed PTFE/Co3O4 flexible films as photocatalyst showing fast kinetic performance for the discoloration of azo-dyes under solar irradiation

Albert Renken, Lioubov Kiwi, Juan Kiwi, Michaël Bensimon, Danièle Laub

Small nanosized clusters of Co3O4 coated on PTFE (polytetrafluoroethylene) flexible film is reported as a novel supported photocatalyst effective in the fast discoloration of the azo-dye Orange II under simulated solar radiation in the presence of oxone (2 ...

2007

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