Synthesis of CuO/SBA-15 adsorbents for SOx removal applications, using different impregnation methods

Gaudin, Pierrick; Dorge, Sophie; Nouali, Habiba; Patarin, Joël; Brilhac, Jean-François; Fiani, Emmanuel; Vierling, Matthieu; Molière, Michel

doi:10.1016/j.crci.2015.07.002

Cited by 14 publications

(8 citation statements)

References 40 publications

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“…MSn was prepared via an adsorption method using SBA-15 as the template. 30 , 31 SnCl 2 ·2H 2 O was dissolved in 10 mL of ethanol to obtain a solution (3 M). Then, a certain amount of SBA-15 sample was added to the abovementioned solution.…”

Section: Methodsmentioning

confidence: 99%

Development of a tin oxide carrier with mesoporous structure for improving the dissolution rate and oral relative bioavailability of fenofibrate

Bai

et al. 2018

DDDT

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BackgroundBiopharmaceutics classification system class II drugs have low solubility, which limits their extent and speed of absorption after oral administration. Over the years, mesoporous materials have been widely used to increase the dissolution rate and oral relative bioavailability of poorly water-soluble drugs.ObjectivesIn order to improve the dissolution rate and increase oral relative bioavailability of the poorly water-soluble drugs, a tin oxide carrier (MSn) with a mesoporous structure was successfully synthesized.MethodsIn this study, MSn was synthesized using mesoporous silica material (SBA-15) as the template. Fenofibrate (FNB) was adsorbed into the channels of MSn by an adsorption method. Characterizations of the pure FNB, MSn, physical mixture of the drug and MSn (PM; 1:1) and FNB-loaded MSn (FNB-MSn) samples were carried out by the scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption/desorption, powder X-ray diffractometer (PXRD), differential scanning calorimetry (DSC) and Fourier transform infrared (FT-IR) spectroscopy. Cytotoxicity assay (MTT) was used to evaluate the cytotoxicity of MSn. In vitro dissolution studies were performed to investigate the dissolution rate of FNB-MSn. In vivo pharmacokinetic studies were used to investigate the changes of plasma drug concentrations of FNB-MSn tablets and commercial FNB tablets in rabbits.ResultsDetailed characterization showed that FNB in the channels of MSn was present in an amorphous state. The in vitro release tests demonstrated that MSn with a good biocompatibility could effectively enhance the dissolution rate of FNB. Pharmacokinetic results indicated that MSn significantly increased the oral relative bioavailability of FNB.ConclusionMSn can be regarded as a promising carrier for an oral drug delivery system.

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Section: Methodsmentioning

confidence: 99%

Development of a tin oxide carrier with mesoporous structure for improving the dissolution rate and oral relative bioavailability of fenofibrate

Bai

et al. 2018

DDDT

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“…These M‐MSNs resulting from the synthetic advances enable control over their composition, size, and morphology. Various metal species incorporated into the mesoporous silica frameworks include aluminum (Al), bismuth (Bi), cerium (Ce), chromium (Cr), cobalt (Co), copper (Cu), gadolinium (Gd), gallium (Ga),16a,23 gold (Au), indium (In), iridium (Ir), iron (Fe), manganese (Mn), molybdenum (Mo), nickel (Ni), palladium (Pd),21b,24,26,31 platinum (Pt),4n,14b,26,32 rhodium (Rh),26,32b rhuthenium (Ru), silver (Ag),14b,28b titanium (Ti),14c Zinc (Zn), Zirconium (Zr), and their respective oxides [aluminium oxide (Al 2 O 3 ), cadmium oxide (CdO), cerium oxide (CeO 2 ),27c cobalt(II) oxide/cobaltous oxide (CoO),20a,37 cobalt (II,III) oxide (Co 3 O 4 ),20a,38 cobalt(III) oxide/ cobaltic oxide (Co 2 O 3 ), chromium(III) oxide (Cr 2 O 3 ), copper oxide (CuO), ferric oxide (Fe 2 O 3 ), ferrous oxide (Fe 3 O 4 ), indium oxide (In 2 O 3 ), magnesium oxide (MgO), manganese oxide (Mn 3 O 4 ), manganese dioxide (MnO 2 ), molybdenum dioxide (MoO 2 ), molybdenum trioxide (MoO 3 ) nickel oxide (NiO),30a,48 palladium oxide (PdO),16a titanium dioxide (TiO 2 ),28b,34,49 vanadium oxide, zinc oxide (ZnO),], sulfides [cadmium sulfide (CdS), zinc sulfide (ZnS)],…”

Section: Impact Of Metals On Msnsmentioning

confidence: 99%

Metal Species–Encapsulated Mesoporous Silica Nanoparticles: Current Advancements and Latest Breakthroughs

Kankala

Zhang

Liu

et al. 2019

Adv Funct Materials

134

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Despite their advantageous morphological attributes and attractive physicochemical properties, mesoporous silica nanoparticles (MSNs) are merely supported as carriers or vectors for a reason. Incorporating various metal species in the confined nanospaces of MSNs (M-MSNs) significantly enriches their mesoporous architecture and diverse functionalities, bringing exciting potentials to this burgeoning field of research. These incorporated guest species offer enormous benefits to the MSN hosts concerning the reduction of their eventual size and the enhancement of their performance and stability, among other benefits. Substantially, the guest species act through contributing to reduced aggregation, augmented durability, ease of long-term storage, and reduced toxicity, attributes that are of particular interest in diverse fields of biomedicine. In this review, the first aim is to discuss the current advancements and latest breakthroughs in the fabrication of M-MSNs, emphasizing the pros and cons, the confinement of various metal species in the nanospaces of MSNs, and various factors influencing the encapsulation of metal species in MSNs. Further, an emphasis on potential applications of M-MSNs in various fields, including in adsorption, catalysis, photoluminescence, and biomedicine, among others, along with a set of examples is provided. Finally, the advances in M-MSNs with perspectives are summarized.(2-5 nm), tunable sizes (50-150 nm), shapes (hexagonal, wormhole-like, cubic, and lamellar) and morphologies (spheres, helical fibers, tubules, gyroids, crystals, and numerous other hierarchical complex architectures), ease of surface functionalization (both interior as well as exterior), unique topology, colloidal and thermal stabilities, and high dispersity. [4] The exceptional topology of surfactant-templated MSNs makes them unique with desirable properties that can be obtained by controlling the preparation conditions, such as the reaction temperature, pH value, stirring speed, and type of silica source, as well as surfactant, among others. [4j,m,n,5] These advantages make the MSNs as versatile materials and ideal choice for catalysis, [6] adsorption, [7] optical devices, [4j] polymeric fillers, [8] and diverse biomedical applications including bio-imaging, [4r,t,u,9] biocatalysts, [10] biosensing, [11] tissue engineering, [4f ] and drug/ gene delivery accounting for targeted and controlled release systems. [3d,4i,o-t,v,12] With these significant advantages and attractive physicochemical properties, it is highly anticipated to harness the desirable and beneficial properties of MSNs through the incorporation of various metals and their respective conjugates for exploration in innovative applications with exceptional performance. [13] The encapsulated metal species in the confined nanospaces of MSNs (M-MSNs) not only significantly enrich the mesoporous architecture and functionalities of MSN, but also tend to overcome their intrinsic limitations, such as their poor suspension ability and stability, lack of intrig...

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“…In fact, these adsorbents combine high adsorption capacities and excellent stability and regenerability in adsorption-desorption cycles at 400 °C [4,5]. Ordered mesoporous silica like SBA-15 is an attractive support due to its high specific surface in mesopores that allows good dispersion of the active phase [5,18,19]. Moreover, its pore diameter (5 -10 nm) ensures good diffusion of gaseous pollutants towards the active CuO species [5,[18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…Ordered mesoporous silica like SBA-15 is an attractive support due to its high specific surface in mesopores that allows good dispersion of the active phase [5,18,19]. Moreover, its pore diameter (5 -10 nm) ensures good diffusion of gaseous pollutants towards the active CuO species [5,[18][19][20]. Ordered mesoporous silica is also chemically inert and thermally stable in the SOx adsorption process.…”

Section: Introductionmentioning

confidence: 99%

CuO supported on COK-12 and SBA-15 ordered mesoporous materials for temperature swing SOx adsorption

Schobing

Cesário

Dorge

et al. 2021

Fuel Processing Technology

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Synthesis of CuO/SBA-15 adsorbents for SOx removal applications, using different impregnation methods

Cited by 14 publications

References 40 publications

Development of a tin oxide carrier with mesoporous structure for improving the dissolution rate and oral relative bioavailability of fenofibrate

Development of a tin oxide carrier with mesoporous structure for improving the dissolution rate and oral relative bioavailability of fenofibrate

Metal Species–Encapsulated Mesoporous Silica Nanoparticles: Current Advancements and Latest Breakthroughs

CuO supported on COK-12 and SBA-15 ordered mesoporous materials for temperature swing SOx adsorption

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