Preparation and characterization of supercritical fluid - fried (CoAl2O4) cobalt blue nano-pigment
Cobalt blue pigments, which mainly comprise CoAl2O4, are widely synthesized as nano-scale particles using the coprecipitation method. Such ultrafine powders are necessary for the ceramics industry because of their significant effect on the color of glaze
Weiran Zhang +6 more
doaj +1 more source
Optimization of Astaxanthin Recovery in the Downstream Process of Haematococcus pluvialis
Astaxanthin derived from Haematococcus pluvialis is a valuable metabolite applied in a wide range of products. Its extraction depends on a sophisticated series of downstream process steps, including harvesting, disruption, drying, and extraction, of ...
Inga K. Koopmann +5 more
doaj +1 more source
Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine +2 more
core +3 more sources
The Effect of Drying Methods and Extraction Techniques on Oleuropein Content in Olive Leaves
Increased demand for olive oil has caused higher quantities of byproducts in olive processing, such as olive leaves, olive skins, and vegetation water.
Darija Cör Andrejč +4 more
doaj +1 more source
Nitrogen sorption as a tool for the characterisation of polysaccharide aerogels [PDF]
Supercritically dried aerogels of several polysaccharides (chitin, chitosan, alginate, alginic acid, k- carrageenan, and agar) have been characterised by physisorption ofN2. Surface areas as high as 570m2 g−1 have been measured.
Boissière, M. +7 more
core +3 more sources
Pr and Nd co-doped Ce-Zr oxide solid solutions (CZPN) were prepared using co-precipitation and microemulsion methods. It is found that only using supercritical CO(2) drying can result in a significant improvement of specific surface area and oxygen ...
Yunzhao Fan +5 more
doaj +1 more source
Production of Exopolysaccharide-Based Porous Structures for Biomedical Applications: A Review
Exopolysaccharides, obtained from microorganisms as fermentation products, are interesting candidates for biomedical applications as scaffolds: they are biocompatible, nontoxic, antimicrobial, antitumor materials.
Alessandra Zanotti +2 more
doaj +1 more source
Recent insights into xerogel and aerogel mineral composites for CO 2 mineral sequestration [PDF]
Supercritically dried composites have already been analysed and proposed as carbon dioxide sequesters. However, the economical and energetic costs of the supercritical drying process had to be re-evaluated, and were eventually found not to enhance the ...
Esquivias Fedriani, Luis María +2 more
core +1 more source
Editorial on Special Issues “Aerogels” and “Aerogels 2018”
Aerogels can be defined as ultralight materials with a 3D porous structure, similar to their parent wet gels, where the solvent has been replaced by a gas without a collapse of the gel structure, thanks to the drying process used (supercritical CO2 ...
Françoise Quignard, Nathalie Tanchoux
doaj +1 more source
Structure of supercritically dried calcium silicate hydrates (C-S-H) and structural changes induced by weathering [PDF]
The nanostructure of supercritically dried calcium silicate hydrates was researched. This particular drying procedure was used to avoid nanostructure modifications due to conventional drying processes.
Morales Flórez, Víctor +1 more
core +1 more source

