Mesoporous SiC-Based Photocatalytic Membranes and Coatings for Water Treatment

Autor: Karla Begonia Cervantes-Diaz, Martin Drobek, Anne Julbe, André Ayral, Julien Cambedouzou

Publikováno v: Membranes, Vol 13, Iss 7, p 672 (2023)

Photocatalytically active silicon carbide (SiC)-based mesoporous layers (pore sizes between 5 and 30 nm) were synthesized from preceramic polymers (polymer-derived ceramic route) on the surface and inside the pores of conventional macroporous α-alum

Externí odkaz: https://doaj.org/article/e81d4b3001254d38956d41f83057c87f

Ceramic Membranes Photocatalytically Functionalized on the Permeate Side and Their Application to Water Treatment

Autor: André Ayral

Publikováno v: Membranes, Vol 9, Iss 5, p 64 (2019)

This work deals with direct coupling of membrane separation and photocatalytic degradation by using photocatalytic ceramic membranes. An unusual configuration is considered here, with the irradiation applied on the permeate side of the membrane in or

Externí odkaz: https://doaj.org/article/b6c089b3ad43412d81d7b58f0a4b7380

Real-Time Capturing of Microscale Events Controlling the Sintering of Lead-Free Piezoelectric Potassium-Sodium Niobate

Autor: Micka Bah, Renaud Podor, Richard Retoux, Fabian Delorme, Kevin Nadaud, Fabien Giovannelli, Isabelle Monot‐Laffez, André Ayral

Publikováno v: Small
Small, 2022, 2022, pp.2106825. ⟨10.1002/smll.202106825⟩

International audience; Sintering is a very important process in materials science and technological applications. Despite breakthroughs in achieving optimized piezoelectric properties, fundamentals of K$_{0.5}$Na$_{0.5}$NbO$_3$ (KNN) sintering are n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0eca4691ebd0bef2d55b1f750fcb8122
https://pubmed.ncbi.nlm.nih.gov/35253990

Impact of Silica Surface Nanoconfinement on the Microstructure of Alkoxysilane Layers Grafted by Supercritical Carbon Dioxide

Autor: Vincent Larrey, Samuel Tardif, Susan Sananes Israel, Diane Rébiscoul, François Rieutord, André Ayral

Publikováno v: Journal of Physical Chemistry C
Journal of Physical Chemistry C, 2019, 123 (19), pp.12305-12312. ⟨10.1021/acs.jpcc.9b01967⟩
Journal of Physical Chemistry C, American Chemical Society, 2019, 123 (19), pp.12305-12312. ⟨10.1021/acs.jpcc.9b01967⟩

The impact of nanoconfinement on the microstructure of alkoxysilane layers grafted by supercritical CO2 was determined using model system made of silica nanochannels, i.e., planar silica surface sp...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a62f1402f678e4da94a4623888cd0555
https://doi.org/10.1021/acs.jpcc.9b01967

Functionalization of MCM-41 with titanium oxynitride deposited via PECVD for enhanced removal of methylene blue

Autor: Aleksander Gurlo, Maged F. Bekheet, André Ayral, Amr A. Nada, Stéphanie Roualdes

Publikováno v: Journal of Molecular Liquids. 274:505-515

TiON and TiO2 were grafted onto the surfaces of mesoporous silica MCM-41 by plasma enhanced chemical vapour deposition (PECVD). The results of small-angle X-ray diffraction (SAXRD), X-ray diffraction, X-ray photoelectron spectroscopy, transmission el

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::99e1c4567ef98cff7b3ba19f9e3971ed
https://doi.org/10.1016/j.molliq.2018.10.154