Processing of polymer-derived silicon carbide foams and their adsorption capacity for non-steroidal anti-inflammatory drugs

Jana, Prasanta; Bruzzoniti, Maria Concetta; Appendini, Marta; Rivoira, Luca; Bubba, Massimo Del; Rossini, Daniele; Ciofi, Lorenzo; Sorarù, Gian Domenico

doi:10.1016/j.ceramint.2016.09.045

Cited by 17 publications

(22 citation statements)

References 36 publications

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“…Finally, for the SiOC aerogel, a broad band around 3400 cm −1 and a shoulder at 3635 cm −1 reveal the presence of O–H and Si–OH moieties, respectively. The IR investigation of the SiC foam was already reported in a previous work and showed similar bonding related to Si–C, Si–O, C=C, and surface OH groups …”

Section: Resultssupporting

confidence: 78%

“…s.r.l., Rosate, Milano) with a weight ratio SMP‐10/PU = 3. Details of the impregnation process have been published elsewhere . The impregnated PU foams were then pyrolyzed at 1200°C for 1 hour in Ar flow into the corresponding SiC foams.…”

Section: Methodsmentioning

confidence: 99%

“…Thermogravimetric analysis (TGA) was recorded with a Netzsch STA 409 equipment (Netzsch Geraetebau Gmbh, Selb, Germany) at 5°C/min in air flow (30 cc/min) up to 1300°C. Microstructural characterization of the SiC foam was already performed in a previous work and the details are available in the literature …”

Section: Methodsmentioning

confidence: 99%

“…A recent paper reported very high adsorption capacity of methyl‐blue for a porous Si–C–N . Our group has recently reported the adsorption behavior of macroporous silicon carbide foams made from preceramic polymers toward non‐steroidal anti‐inflammatory drugs (NSAIDs) and their metabolites …”

Section: Introductionmentioning

confidence: 99%

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Polymer‐derived ceramic aerogels as sorbent materials for the removal of organic dyes from aqueous solutions

et al. 2017

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Polymer‐derived SiC and SiOC aerogels have been synthesized and characterized both from the microstructural point of view and as sorbent materials for removing organic dyes (Methylene Blue, MB, and Rhodamine B, RB) from water solutions. Their adsorbent behavior has been compared with a polymer‐derived SiC foam and a commercial mesoporous silica. The aerogels can efficiently remove MB and RB from water solution and their capacity is higher compared to the SiC foams due to the higher surface area. The SiOC aerogel remains monolithic after the water treatment (allowing for an easy removal without the need of a filtration step) and its maximum capacity for removing MB is 42.2 mg/g, which is higher compared to the studied mesoporous silica and many C‐based porous adsorbents reported in the literature. The reason for this high adsorption capacity has been related to the unique structure of the polymer‐derived SiOC, which consists of an amorphous silicon oxycarbide network and a free carbon phase.

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Section: Resultssupporting

confidence: 78%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polymer‐derived ceramic aerogels as sorbent materials for the removal of organic dyes from aqueous solutions

et al. 2017

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“…The closest research work to this approach was proposed by Szczurek et al when they showed the possibility of processing carbon periodic cellular architectures by coating, using hydrothermal conditions, a 3D printed polymeric lattice with a resorcinol‐formaldehyde resin followed by high‐temperature pyrolysis. On the other hand, the PDC process was used to replicate polyurethane foams and, accordingly, different reticulated ceramic foams in the general Si–C–O system have been obtained . This method has been shown to be simple and cost effective, and allows for the control of the density of the final ceramic foam by varying the polymer/PU foam mass ratio used in the impregnation step.…”

Section: Introductionmentioning

confidence: 99%

Polymer‐derived SiCN cellular structures from replica of 3D printed lattices

et al. 2018

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In comparison with metals and polymers, ceramics and/or carbon are more difficult to process into well‐defined cellular architectures (e.g., cubic, tetrakaidecadehron, etc.) using Additive Manufacturing techniques. The present work reports a simple method for generating complex and precise SiCN ceramic lattices using a preceramic polymer and applying the replica approach to structures fabricated using stereolithography of plastic materials, with the associated ease of fabrication. Three‐dimensional printed plastic lattices impregnated with a polysilazane were converted to SiCN by pyrolysis at 1000°C in inert atmosphere. In spite of the high amount of mass loss (~58%) and volume shrinkage (~65%), the impregnated structures did not collapse during pyrolysis, leading to highly porous (total porosity ~93 vol%) components possessing suitable strength for handling and potential use as lightweight components.

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Reactive Atmosphere Synthesis of Polymer‐Derived Si–O–C–N Aerogels and Their Cr Adsorption from Aqueous Solutions

et al. 2018

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Polymer derived ceramic (PDCs) aerogels belonging to the Si–O–C–N system are synthesized by crosslinking a preceramic polymer in a diluted solution followed by supercritical or atmospheric drying and pyrolysis in inert (N2) or reactive (NH3/CO2) atmosphere. Accordingly, aerogels with hierarchical porosity ranging from some microns to few nanometers together with high specific surface area in the range 30–400 m2 g−1 have been obtained. Moreover, their surface contains a broad range of moieties (Si–OH, Si–NH, C=O, etc.) that can interact and bind metal ions thanks to electrostatic interactions. This combination of hierarchical porosity, high SSA, and broad range of chemical functionalities makes these PDCs aerogels interesting candidates for water purification. In this work, SiOC and SiCN aerogels have been tested as adsorbents for Cr(III)/(VI) ions from aqueous solutions with promising results for the SiOC aerogel pyrolyzed in N2 and the SiCN treated in NH3. Correlations and similarities among the Cr(VI)/(III) adsorption capacity with the main features of the porous substrates (SSA, N2 TPV, amount of free C, bulk density, isoelectric point, main IR peaks (Si–OH, OH, NH, C=O, C=C, Si–O, C–N, Si–N) have been investigated by applying the Principal Component Analysis (PCA).

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Processing of polymer-derived silicon carbide foams and their adsorption capacity for non-steroidal anti-inflammatory drugs

Cited by 17 publications

References 36 publications

Polymer‐derived ceramic aerogels as sorbent materials for the removal of organic dyes from aqueous solutions

Polymer‐derived ceramic aerogels as sorbent materials for the removal of organic dyes from aqueous solutions

Polymer‐derived SiCN cellular structures from replica of 3D printed lattices

Reactive Atmosphere Synthesis of Polymer‐Derived Si–O–C–N Aerogels and Their Cr Adsorption from Aqueous Solutions

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