Showing papers in "Colloids and Surfaces A: Physicochemical and Engineering Aspects in 2015"

TL;DR: In this paper, the Zeolitic imidazolate framework-8 (ZIF-8) nanosorbent was successfully synthesized via a facile method at room temperature.

TL;DR: In this paper, a magnetic photocatalytic CoFe2O4/g-C3N4 composite was successfully synthesized by a simple calcination method, which could activate H2O2 to degrade methylene blue (MB) in aqueous medium under visible light irradiation.

TL;DR: In this paper, the effects of various surfactants and hydrocarbons with well-defined properties on foam stability were evaluated at both bulk and bubble-scale to investigate the foam stability in the presence and absence of three isoparaffins.

TL;DR: In this article, conditions to optimize chitosan nanoparticles as potential nano-fillers in edible films were described, and the ionic cross-linking between the cationic amino groups on the chitosa chain and the anionic phosphate groups of sodium tripolyphosphate (TPP) was verified via FTIR.

TL;DR: In this article, the magnetic β-cyclodextrin-graphene oxide nanocomposites (Fe 3 O 4 /β-CD/GO) were prepared as novel adsorbents.

TL;DR: In this article, partially hydrophobic modified SiO 2 nanoparticles were used with sodium dodecyl sulfate (SDS) to increase the foam stability and plugging ability in porous media.

TL;DR: In this paper, magnetic demulsification of single-layer oleic acid-coated magnetite (Fe3O4@OA) nanoparticles as a demulsifier for cyclohexane-diluted crude oil-in-water nanoemulsions (denoted as CO-NEs) was investigated under an external magnetic field.

TL;DR: In this article, hierarchical porous carbons (HPCs) were prepared from lignin via traditional carbonization-activation method, and the resulting HPC was composed with macroporous cores, mesoporous and microporous channels.

TL;DR: In this paper, the use of nanographite oxide as an adsorbent to remove p-nitrophenol from aqueous solutions was investigated, and it was found that the nanographitic oxide possessed a large surface area and was particularly effective for the removal of p-nipphenol.

TL;DR: In this paper, the effect of humic acid (HA) on the adsorption of activated carbon (AC) was investigated by means of batch experiments, and the results indicated that the Cr(VI)-AC adaption in both the absence and presence of HA most appropriately followed the pseudo-second-order kinetic model (R2 ǫ> 0.99).

TL;DR: In this paper, the adsorption of uranium (VI) from aqueous solution by Fe 3 O 4 @TiO 2 composites was studied by batch experiments and the maximum sorption capacity was evaluated to be 118.8mg U ǫg −1 at pH 6.0.

TL;DR: The magnetic polymer-based graphene foam for oil-water separation was fabricated by the synergistic effects of the deposition of Fe 3 O 4 nanoparticles on graphene sheets and the self-assembly of graphene on polyurethane (PU) sponge as mentioned in this paper.

TL;DR: In this article, a facile and green method was employed to synthesize the tannic acid functionalized graphene nanocomposite (TA-G), which could alter graphene surface physicochemical properties to improve the adsorption efficiency.

TL;DR: In this paper, a new sorbent made by grafting both amino groups and Fe (III) on mesoporous silica SBA15 (named Fe-N,N-SBA15) was prepared and used for the removal of tetracycline antibiotics (TCs) from aqueous solution.

TL;DR: In this paper, an electrospun nanofibrous mat for wound dressing application was successfully prepared from poly(∆-caprolactone) (PCL), cellulose acetate (CA) and dextran blend solution.

TL;DR: In this paper, the effects of Mg2+ ions on the wetting properties of oil-wet carbonate surfaces in the presence and absence of cationic surfactant were studied.

TL;DR: A new kind of amino-functionalized attapulgite clay nanoparticle adsorbent (ATP@CCS) was fabricated by hydrothermal carbonization of chitosan at a mild temperature and their application for the Methylene Blue (MB) removal from wastewater was studied in this article.

TL;DR: A multifunctional Ag-ZnO/g-C3N4 composite was hydrothermally synthesized using aqueous dispersion of g-C 3N4 particles with Ag and ZnO precursors by heat treatment at 130°C for 3h as mentioned in this paper.

TL;DR: In this article, three different morphology (cubic, leaf-shaped and dodecahedral ZIFs) were successfully synthesized in aqueous solution via green methods at room temperature and tested for removal of As(III).

TL;DR: In this paper, the adsorption mechanism is a complex process that involves a combination of partitioning, electrostatic attraction, and van der Waals forces, and it was found that pH and temperature had very important effects on the adaption of chlorophenols.

TL;DR: In this paper, the characterization of linear copolymer styrene-butadiene-styrene (SBS) and SBS+polyphosphoric acid (PPA) modified bitumen by using conventional as well as advanced methods on bitumens at different ageing steps and temperature.

TL;DR: In this paper, the zeta potential of two carbonate crystals aged with stearic acid was evaluated in deionized water and in saline brines, and it was shown that surface dissolution has a significant effect on the ZPT of aged calcite.

TL;DR: The skin toxicity of four ionic and fourteen non-ionic surfactants was investigated by means of four in vitro assays, MU and LDH test of cell viability, and detection of the inflammation markers IL-1 alpha and IL-8.

TL;DR: In this paper, a magnetically separable adsorbent composed of Co 0.6 Fe 2.4 O 4 micro-particles was successfully prepared by thermal decomposition of the Co0.4 C 2 O 4 ·2H 2 O.

TL;DR: In this paper, the preparation and characterization of stable aqueous suspensions of superparamagnetic iron oxide nanoparticles stabilized with chitosan (CHI) or with alginate (ALG) are reported.

TL;DR: It is shown that favorable micromixing conditions are created on top of the membrane surface to form chitosan–TPP nanoparticles, which were prepared by a novel technique based on ionic gelation using sodium tripolyphosphate as cross-linking agent.

TL;DR: In this paper, a long-term stability of gel enhanced foam as an in-depth profile control agent in high temperature reservoirs was successfully prepared by adding comb polymer gel, which can enhance the thickness and strength of foam film.

TL;DR: In this paper, a nanostructured graphene-SnO 2 -polyaniline (GSP) ternary composite is synthesized via one-pot method, including that GO is reduced by Sn 2+ and tiny SnO 2 nanoparticles are homogeneously distributed on the graphene sheets and following that polyanilines (PANI) is in situ synthesized on the surface of graphene-snO 2 (GS) composite in order to obtain GSP ternaries composite.

TL;DR: In this article, the role of individual monovalent and divalent ions in the wettability alteration process by smart waterflood was explored through set of different tests, to find the right mechanisms behind the Smart Waterflood.

TL;DR: In this article, the shape, size, and deformation of cross-linked polymer microspheres were investigated using scanning electron microscopy (SEM), microscopy and laser diffracting measurements experiments.