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Приказ резултата 11-20 од 152
Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers
(Springer, Dordrecht, 2015)
In this paper, geopolymers based on two different fly ash samples were exposed to sodium sulfate (Na2SO4) solution (50 g/l) over a period of 365 days. It was found that sulfate solution attack caused a small decrease in ...
Electrospun nanofibre membranes functionalised with TiO2 nanoparticles: Evaluation of humic acid and bacterial removal from polluted water
(Elsevier Science Bv, Amsterdam, 2015)
This study presents contact experiments and filtration tests with nanofibre membranes containing TiO2 nanoparticles in view of effluent treatment. The first part of this study focuses on the removal of dissolved organic ...
Encapsulation of resveratrol into Ca-alginate submicron particles
(Elsevier Sci Ltd, Oxford, 2015)
Resveratrol-loaded alginate submicron particles were prepared by emulsification followed by external gelation. Scanning electron microscopy analysis of the air-dried and freeze-dried submicron particles demonstrated their ...
Recovery of (-)-epigallocatechingallate (EGCG) from aqueous solution by selective adsorption onto spent coffee grounds
(Springer, New York, 2015)
Activated carbons from spent coffee grounds have been prepared for column adsorption of main green tea polyphenol (-)-epigallocatechingallate (EGCG). The response surface methodology was used to estimate the influence of ...
Efficient arsenic removal by cross-linked macroporous polymer impregnated with hydrous iron oxide: Material performance
(Elsevier Science Sa, Lausanne, 2015)
Optimization of the synthesis of cross-linked macroporous polymer impregnated with hydrous iron oxide and post-process of obtained material by application of freeze/drying technique, produces high performance adsorbent ...
Ultra-high breakdown field varistors prepared from individually synthesized nanoprecursors
(Elsevier Sci Ltd, Oxford, 2015)
Previously synthesized nanocrystalline ZnO doped with cobalt and manganese, Bi2O3 and Sb2O3 were the precursors for high voltage varistors preparation. Varistor ceramics were sintered at 750 degrees C, 770 degrees C or 900 ...
Structural changes of Ca-alginate beads caused by immobilized yeast cell growth
(Elsevier Science Bv, Amsterdam, 2015)
Structural changes of Ca-alginate bead due to yeast cell loading and the impact on their mechanical properties were studied based on experimental data of cell number density per beads, cell rearrangement within the bead ...
Influence of Preparation Conditions of Alumina-Based Refractory on the Morphological Parameters of Surface Defects
(Wiley-Blackwell, Hoboken, 2015)
The surface defects on alumina-based refractory arising from thermal shock were studied using image analysis and statistical tools. Alumina-based refractory specimens were prepared by adding a different amount of fibers ...
Nanomaterial with High Antimicrobial Efficacy-Copper/Polyaniline Nanocomposite
(Amer Chemical Soc, Washington, 2015)
This study explores different mechanisms of antimicrobial action by designing hybrid nanomaterials that provide a new approach in the fight against resistant microbes. Here, we present a cheap copper-polyaniline (Cu-PANI) ...