Meso-macroporous silica containing iron oxide nanoparticles (15-20 nm) was synthesized by formulating solid lipid nanoparticles and metallosurfactant as both template and metal source. Due to the high active surface area of the catalyst, the material exhibits an excellent performance in a Fenton-like reaction for methylene blue (MB) degradation, even at low amount of iron oxide (5% TOC after 14h).2

A novel pH- and glutathione-responsive drug delivery system has been developed by deposition of tannic acid (TA)–Fe(iii) complex on the surface of mesoporous silica nanoparticles (MSN).

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Mesoporous Starbon® was shown to surpass conventional carbon additives in Li-ion batteries negative electrodes.

Magneto-responsivity can be imprinted in hard mesoporous silica materials using soft colloidal templates formed by magnetic surfactants. The materials exhibit a low to high spin transition due to geometrical constraints of the isolated iron ions grafted on the silica walls.While metallosurfactants have been known for many years 1 and are already used in the eld of catalysis, sensing, 2 or for biomedical applications, 3 only recently the magnetic properties of surfactants bearing magneto-responsive centers (Fe, Gd, Ho, and Ce) have been demonstrated. 4 The magnetic responsiveness of these surfactants is fundamentally different from molecular magnets or ferrouids, arising from electronic and molecular spin, associated with the ordering in the selfassembled architectures. Magneto-surfactants (MAGS) have been used to date as novel molecular tools in designing magnetic colloids such as microemulsions 5 or emulsions 6 and were proposed for potential applications in elds that require interfacing magnetic materials, i.e. information storage, electronic or spintronic devices. Moreover, due to the absence of metallic nanoparticles that are subjected to strict regulation as hazardous products, MAGS are suitable for biomedical (i.e. MRI contrast agents or hyperthermia probes) or for environmental applications (i.e. recovery of heavy metals).For the rst time, we show the application of magnetic surfactants for the preparation of nanoparticle-free magnetic mesoporous silica (MMS) materials. In this case MAGS are used as both template and magnetic source for the design of magnetic hard matter. Indeed, imprinting mesoporous silica materials with magnetic properties is of great fundamental interest since it combines high surface area and pore volume with magnetic responsiveness. MMS may have applications in catalysis, 7 sensing, 8 separation 8c,9 or biomedical elds for simultaneous MR imaging and targeted drug delivery. 10 While the structuring of inorganic matter with surfactants was extensively investigated, the magnetisation of the inorganic matter with surfactants is a new concept. Moreover, to date magnetic mesoporous silica are only formed from magnetic nanoparticles embedded into mesoporous silica 11 through multi-step syntheses and their main drawbacks are the inhomogeneities of the nal material. Here, we propose a straightforward method based on the sol-gel procedure, by using a magneto-surfactant as a structure directing agent and a source of magnetic responsiveness.Moreover, since the magnetic centres are homogeneously distributed in the micellar shells, which directly interact with the silica precursors, it is reasonable to assume they are also found evenly distributed in the pore channels of the resulting MMS materials. 1a,b,d The surfactant used in this study is cetyltrimethylammoniumtrichloromonobromoferrate, CTAF, and it was prepared simply from the common surfactant cetyltrimethylammonium bromide, CTAB and a stoichiometric amount of paramagnetic FeCl 3 (see ESI †). CTAF is an ionic liquid with a melting...

Co-, Cu-substituted ZnAl ternary layered double hydroxides (LDHs) were synthesized and explored as efficient photocatalysts for dye degradation. LDH materials were fully characterized with various methods including elemental analysis, X-ray diffraction, infrared spectroscopy, Raman spectroscopy, and transmission electron microscopy, which revealed that LDH materials were well crystallized without any amorphous phase as impurity. In addition, the plates of LDH were well dispersed, one plate being easily distinguished from another plate, and their size could also be controlled by varying the Co, Cu substitution ratio. As an application, the adsorption characteristics and photocatalytic degradation of orange II, a model pollutant, were investigated. In particular, Co-substituted [a]

A novel system of paramagnetic vesicles was designed using ion pairs of iron-containing surfactants. Unilamellar vesicles (diameter ≈ 200 nm) formed spontaneously and were characterized by cryogenic transmission electron microscopy, nanoparticle tracking analysis, and light and small-angle neutron scattering. Moreover, for the first time, it is shown that magnetization measurements can be used to investigate self-assembly of such functionalized systems, giving information on the vesicle compositions and distribution of surfactants between the bilayers and the aqueous bulk.