Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
A series of symmetric double chains alkylbetaine surfactants BC n–n (n=8, 10, 12, 14) were synthesized from cyanuric chloride, aliphatic amines, N,N-dimethylpropane-1,3-diamine and sodium chloroacetate. Their structures were confirmed by MS, TOF-MS, 1 H NMR, 13 C NMR and FTIR. Surface tension measurements demonstrated that BC 8–8 and BC 10–10 have superior surface...
We report the dendrimer-mediated synthesis and shape evolution of gold–silver alloy nanoparticles (Au–Ag alloy NPs) with different metal compositions. In this study, amine-terminated generation 5 poly(amidoamine) dendrimers were used as stabilizers to prepare Au–Ag alloy NPs with different gold atom/silver atom/dendrimer molar ratios without the assistance of additional reducing agents. Following...
This paper highlights recent work on formulation and stability of nickel sulphate W/O microemulsion using hydrophilic nonionic surfactant Tween 80, and its use for electrodeposition of uniform Ni-nanoparticles on nickel plating. The prepared microemulsion was found to be crystal clear and very stable for more than 30 days at a wide range of temperature (20≥T≤45°C). The Tween 80/n-hexane/n-hexanol/water...
Ni adsorption on various single and dual site clays (gibbsite, goethite, natural red earth and leterite) was determined using batch experiments as a function of pH, background electrolyte concentration and adsorbate loading. The experimental data was quantified by 2-pK surface complexation modeling using monodentate and bidentate surface reactions. Gibbsite and laterite showed higher retention of...
This study is focused on understanding the relationship between the molecular structure of a series of dye–polyether derivatives and its dispersing ability for parent disperse dye. The effects of dye–polyether derivatives including anchoring groups and polyether chains on the aggregation at the air/solution interface, adsorption behavior and dispersion stability for dye dispersions were investigated...
Carbon nanotubes (CNTs) have excellent adsorption properties for a wide range of substances, but the leakage of CNTs into blood and the non-specific adsorption of plasma proteins are major issues in the application of CNTs in blood purification. To minimize these shortcomings, multi-walled carbon nanotubes (MWCNTs)/iron oxides magnetic composites were prepared and intended to be used in bound solute...
The production of crude oil containing emulsified water causes various problems, such as corrosion of transport systems and catalyst poisoning during refining. The ease of separating the produced water from the oil varies with the emulsion's age, but is not significantly correlated with water droplet size and size distribution or the emulsion's dynamic viscosity. The aim of this work was to assess...
In this paper, an environmentally friendly and efficient strategy for the preparation of titanium oxide (TiO 2 ) nanoparticles–reduced graphene oxide (RGO) composite with hydrothermal process was demonstrated. First, we reduced graphene oxide to RGO by using dextran as reducing agent and surface modifier. Then the TiO 2 nanoparticles were successfully prepared from a water soluble...
ZnO/Ag nanocomposites have been prepared by two-step reduction method. Firstly, ZnO core seeds were prepared by the reaction of zinc acetate with KOH under magnetic stirring condition in the presence of poly (N-vinyl-2-pyrrolidone) (PVP). Then, Ag nanoparticles were overgrown on ZnO core seeds with reduction by PVP. ZnO/Ag nanocomposites were characterized by TEM, photoluminescence, UV–visible absorption...
Palygorskite was modified with inorganic sulfates, including Na 2 SO 4 , ZnSO 4 , Al 2 (SO 4 ) 3 , and Zr(SO 4 ) 2 , using the high-pressure homogenization technology. The effects of type and concentration of sulfates on the morphology, micro-structure, surface potential, shear modulus and viscosity of palygorskite were investigated by...
According to the principle and operation of cloud point extraction, the paper cited in the title reports some results which are difficult to understand and deserve comments and questions.
Monodisperse Y 2 O 3 , Y 2 O 3 :Eu 3+ and (Y 2 O 3 –La 2 O 3 ):Eu 3+ spherical nanoparticles were synthesized as well as Y 2 O 3 @Eu 3+ , Y 2 O 3 @(Eu 3+ , La 3+ ) and Au@SiO 2 @Y 2 O 3 :Eu 3+ core–shell structured nanoparticles, using...
The interaction between a monosaccharide (fructose, mannose, glucose, or galactose) and a phospholipid (1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) or 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC)) molecular layer was investigated experimentally to understand the non-genomic effects on biomembranes. The surface pressure (π)–surface area (A) isotherm of the phospholipid monolayer at an air–water...
This work demonstrated a facile approach to the fabrication of the multifunctional asymmetric microparticles and heterogeneous overlapped microshells with the aid of stepwise angled colloidal lithography (ACL). The two dimensional non-close-packed silica sphere arrays were used as template for the fabrication. With two-step angled vapor deposition, the asymmetric microparticles were fabricated. Altering...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.