Претраживање
Приказ резултата 61-70 од 3270
Solid acids as catalysts for biodiesel synthesis
(Heterogeneous Catalysts: Design, Applications and Research Insights, 2016)
Increased environmental concern and awareness of limited reserves of fossil fuels gave a great importance to alternative and renewable energy sources over the past couple decades. An excellent substitute for mineral diesel ...
Chitin and chitosan from microorganisms
(Chitin, Chitosan, Oligosaccharides and Their Derivatives: Biological Activities and Applications, 2010)
Today, a major concern about the use of crustacean chitin/chitosan in the pharmaceutical and biomedical field is still the molecular variability of a natural product, which results in a wide unpredictable range 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 ...
Removal of nickel(II) ions from aqueous solutions using the natural clinoptilolite and preparation of nano-NiO on the exhausted clinoptilolite
(Elsevier Science Bv, Amsterdam, 2010)
The natural zeolite tuff (clinoptilolite) from a Serbian deposit has been studied as adsorbent for Ni(II) ions from aqueous solutions. Its sorption capacity at 298K varies from 1.9mg Nig(-1) (for the initial solution ...
On the zinc sorption by the Serbian natural clinoptilolite and the disinfecting ability and phosphate affinity of the exhausted sorbent
(Elsevier, Amsterdam, 2011)
The Serbian natural zeolite is moderately effective in removing the zinc(II) ions from aqueous solutions. At 298 K the sorption capacity varies from 13 to 26% for the initial Zn(II) solution concentration of 100 and 600 ...
Structure investigation of fluorinated aluminophosphate ULM-3 Al templated by 3-methylaminopropylamine
(Academic Press Inc Elsevier Science, San Diego, 2010)
A single-crystal X-ray diffraction analysis of an open-framework aluminophosphate ULM-3 Al prepared by 3-methylaminopropylamine (MAPA) as structure-directing agent revealed an orthorhombic Pcab symmetry (a=9.9949(4)angstrom, ...
Improved Properties of Oxygen and Argon RF Plasma-Activated Polyester Fabrics Loaded with TiO2 Nanoparticles
(Amer Chemical Soc, Washington, 2010)
The potentials of low-pressure capacitively coupled RF oxygen and argon plasmas for the activation of polyester fibers surface that can enhance the deposition of colloidal TiO2 nanoparticles were discussed. SEM and XPS ...
Compactivity of cell colonies-relations between living cells inside polymer hydrogel beads
(World Scientific Publ Co Pte Ltd, Singapore, 2010)
The system of living cells closed in a polymer bead as a matrix is considered in formalism of lattice model extended with compactivity concept developed for complex systems in statistical mechanics of jammed state of matter. ...
Dynamic mechanical properties of nanocomposites with poly (vinyl butyral) matrix
(World Scientific Publ Co Pte Ltd, Singapore, 2010)
This work reports the preparation of SiO(2) and TiO(2)/poly (vinyl butyral) nanocomposites with enhanced dynamic mechanical properties. Silica and titania nanoparticles were introduced in the matrix as the neat powder and ...
Influence of the synthesis procedures on pt catalyst activity for ethanol electrooxidation reaction / Uticaj postupka sinteze na aktivnost platinskih katalizatora za reakciju elektrooksidacije etanola
(Engineering Society for Corrosion, Belgrade, Serbia, 2016)
Carbon supported platinum catalysts for ethanol electrooxidation were synthesized by modified polyol synthesis method, assisted by microwave or reflux heating. Synthesized catalysts were characterized by XRD, STM and TGA ...