Showing papers in "Colloids and Surfaces A: Physicochemical and Engineering Aspects in 2017"

TL;DR: In this article, the synthesis of a new range of iron oxide-graphene oxide (GO) nanocomposites having different iron oxide content (36-80wt%) as high-performance adsorbents for arsenic removal was reported.

TL;DR: In this paper, the preparation, stability and phase behaviour of oil-in-water emulsions formed by dodecane and water and stabilised by naturally amphiphilic, chemically unmodified cellulose nanofibrils (CNF), TEMPO-oxidized cellulose Nanofibril (T-CNF) and cellulose nanocellulose nanocrystals (CNC) were investigated.

TL;DR: In this article, a low-cost clay-biochar composite with potato stem and natural attapulgite was used to enhance removal efficiency of Norfloxacin from aqueous solution.

TL;DR: In this article, the double layer expansion (DLE) can be quantitatively explained by disjoining pressure, which is the sum of van der Waals force, electrical double layer force and structural force.

TL;DR: In this article, a model for capillary filling of Bingham Plastic fluid was developed to probe the possible non-Newtonian behavior of diluted bitumen above the onset of asphaltenes precipitation.

TL;DR: A review of the superhydrophobic coatings reported in literature for steel protection and their performances can be found in this article, where different models used to evaluate the wettability of a rough surface and equations governing the static contact angle are discussed and commented.

TL;DR: In this article, the effect of carbon nanotubes on the life-cycle and degradation temperature of thermal oil-based nanofluids was investigated using thermal and viscous transport effects.

TL;DR: The ternary heterostructured g-C 3 N 4 /Ag/BiVO 4 photocatalyst was successfully fabricated by a facile in situ precipitation method as mentioned in this paper.

TL;DR: In this article, polysulfone microcapsules containing tung oil were synthesized by a solvent evaporation method and the mean diameter and wall thickness of the synthesized micro-capsules were approximately 130μm and 9μm, respectively.

TL;DR: In this paper, the anisotropic physicochemical properties of calcite, including cleavage nature, surface (free) energy, surface relaxation degree, surface wettability and adsorption behaviour, were revisited based on the surface structures and surface broken bonds reported previously.

TL;DR: In this paper, the influence of salt and temperature on the viscosity of a hydrophobically modified polyacrylamide-based (PAM-based) novel functional polymer (RH-4) was investigated.

TL;DR: In this article, the authors have successfully fabricated meshes with robust and super-hydrophobic surface (i.e., water-repellent magnesium stearate powders on substrates made of phenol-formaldehyde resin) with water contact angles exceeding 150° and excellent self-cleaning properties.

TL;DR: In this article, the influence of non-ionic surfactants (TX-100 and TX-114) on the CPZ by surface tension, fluorescence and UV-vis spectra was investigated.

TL;DR: The results indicate that the GE/AC has potential to serve in wastewater treatment applications, especially in batch removal of Rhodamine B from an aqueous solution, and the response followed Langmuir adsorption isotherm as mentioned in this paper.

TL;DR: In this article, a hybrid hydrogel was synthesized from grafting of acrylamide and N-isopropyl acryamide onto lignin by incorporation of montmorillonite under ultrasonic irradiation (lignin-g-p(AM-co-NIPAM)/MMT).

TL;DR: In this paper, the gelation behavior of composite hydrogels was studied in detail and the formation of GO/PAM composite gels were induced by various kinds of noncovalent interactions between GO sheets and PAM, including hydrogen bonding, electrostatic interaction, hydrophobic interaction, van der Waals force, the π-π stacking of GO sheets, and etc.

TL;DR: A strategy to achieve synergistic PDT and PTT based on collagen-gold hybrid hydrogels, in which gold nanoparticles are incorporated as photothermal agents for PTT and photosensitive drugs are entrapped as photodynamic agents for PDT is reported.

TL;DR: In this article, a modified polymer complex process was used to synthesize nanoparticles of cerium oxide (ceria) using modified pechini, while varying the pH of the system.

TL;DR: In this paper, a surface modification of boron nitride/epoxy composite was introduced on the surface through sol-gel reaction to improve the affinity of BN with epoxy resin.

TL;DR: In this paper, the influence of Fe(III) adsorption on smithsonite surfaces using X-ray diffraction, X-Ray photoelectron spectroscopy (XPS), zeta potential measurements, scanning electron microscopy, and micro-flotation tests was investigated.

TL;DR: In this article, a CAO-water nanofluid MHD convective flow in a porous cavity is studied and the solutions of final equations are obtained by CVFEM.

TL;DR: In this paper, a magnetohydrodynamic (MHD) stagnation point flow of Carreau fluid in the presence of heterogeneous-homogeneous reactions is considered and the governing equations of motion, energy and concentration are transformed into a set of nonlinear ordinary differential equations by utilizing the suitable transformations.

TL;DR: In this article, the Ponceau 4R (PR), Congo Red (CR), and Allura Red (AR) dyes and multi-walled carbon nanotubes (MWCNTs) were evaluated for comparison.

TL;DR: In this article, an advantage of 1hexadecyl-3-methyl imidazolium bromide (C16mimBr) over traditional cationic surfactant (CTAB) has been highlighted.

TL;DR: In this article, the effect of cation exchange on adsorption behavior of Cu and Zn in single and binary-metal systems by rice straw biochar (RSB) made by pyrolysis at 600°C.

TL;DR: In this article, a two-pot coating process was proposed to facilely transform polypropylene (PP) microfiltration membrane hydrophobicity into superhydrophilicity and underwater superoleophobicity.

TL;DR: In this article, the authors used nanoparticles such as SiO2 and Fe2O3 in combination with guar-gum polymer to improve the stability of CO2 foam.

TL;DR: In this paper, the feasibility of FeCl 2 as a novel activating agent to prepare activated carbons from tomato stem (TS) was investigated by using N 2 adsorption/desorption isotherms at 77 K.

TL;DR: In this paper, the antibacterial, in-vitro biocompatibility assay, and mechanical properties of PLA/Ag nanofibers fabricated by electrospinning technique were outlined.

TL;DR: In this article, a series of dispersible nano-SiO 2 (denoted as DNS) separately surface-modified by silane coupling agents hexamethyldisilazane and hexadecyltrimethoxysilane were added into HPAM solution to obtain the HPAM-based suspensions used for enhanced oil recovery (EOR).