A novel approach for the preparation of sodium alginate foams by ice-templating, followed by freeze-drying was described. Important effects of the preparation parameters on the macroporous structure of the final materials could be evidenced. A functionalization procedure for the preparation of acidified macro/meso-porous foams with high surface area was optimized and the efficiency of one alginic acid foam was demonstrated for the adsorption of a basic dye (methylene blue) from aqueous solution. The comparison of the maximum monolayer adsorption capacity of this adsorbent with the values already reported for other biosorbents clearly identified alginic acid foams as competitive sorbents for the removal of methylene blue from aqueous solutions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.carbpol.2017.09.022 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Processes of Obtaining Nanostructured Materialswith a Hierarchical Porous Structure on the Example of Alginate Aerogels.
Gels
December 2024
Department of Chemical and Pharmaceutical Engineering, Mendeleev University of Chemical Technology of Russia, Miusskaya pl. 9, 125047 Moscow, Russia.
Currently, materials with specific, strictly defined functional properties are becoming increasingly important. A promising strategy for achieving these properties involves developing methods that facilitate the formation of hierarchical porous materials that combine micro-, meso-, and macropores in their structure. Macropores facilitate effective mass transfer of substances to the meso- and micropores, where further adsorption or reaction processes can occur.
View Article and Find Full Text PDFEnhancing Methylene Blue Adsorption Performance of TiCT@Sodium Alginate Foam Through Pore Structure Regulation.
Nanomaterials (Basel)
November 2024
Chongqing Key Laboratory of Interface Physics in Energy Conversion, College of Physics, Chongqing University, Chongqing 400044, China.
Pore structural regulation is expected to be a facile way to enhance the adsorption performance of MXene. In this work, spherical foam composites consisting of TiCT and sodium alginate (SA) were synthesized via a vacuum freeze-drying technique. By varying the solution volume of TiCT, four distinct TiCT@SA spherical foams with honeycomb-like and lamellar structures with a pore diameter in the range of 100-300 μm were fabricated.
View Article and Find Full Text PDFDevelopment of a Whey Protein Recovery Process Using Sugar Kelp ( Extracts.
Foods
November 2024
School of Food and Agriculture, University of Maine, 5735 Hitchner Hall, Orono, ME 04469, USA.
Whey is the largest waste product of the cheese-making industry and the current methods of extracting the nutrients from it are costly and inefficient. This study assessed the feasibility of using crude polysaccharides to flocculate proteins from liquid whey waste. The flocculants used were a sugar kelp ( extract, as well as commercial seaweed polysaccharides, alginate and k-carrageenan, to recover proteins from the liquid whey waste.
View Article and Find Full Text PDFConstruction of an alginate-based aminated lignin composite foam with ultra-high service performance.
Carbohydr Polym
January 2025
College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China; National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Electronic address:
Lignin, a complex natural 3D aromatic polymer compound known for its high thermal stability, stiffness, and ability to effectively withstand chemical and biological attacks. When combined with various other natural biomass components, lignin can offer the promise of fortifying the physical, chemical, and biological stability of matrix materials, which has garnered significant interest. Herein, through the incorporation of alginate with aminated lignin using chemical and ionic double cross-linking and freeze-drying techniques, alginate-lignin composite functional foams (SA-NAL) with improved water affinity, mechanical strength, and overall service performance have been successfully developed.
View Article and Find Full Text PDFAdvances and impact of human amniotic membrane and human amniotic-based materials in wound healing application.
Int J Biol Macromol
November 2024
Department of Biomaterials Nanotechnology and Tissue Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Applied Physiology Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran. Electronic address:
Wound healing is a complicated process, especially when surgical, traumatic, burn, or pathological injury occurs, which requires different kinds of dressing covers including hydrogels, hydrocolloids, alginates foams and films for treatment. The human amniotic membrane (hAM) is a biodegradable extracellular matrix with unique and tailorable physicochemical and biological properties, generated by the membrane itself or other cells that are located on the membrane surface. It is noted as a promising aid for wound healing and tissue regeneration due to the release of growth factors and cytokines, and its antibacterial and immunosuppressive properties.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!