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... In this paper, we explore a concept and present the first experimental evidence to show that it is possible to form a stable liquid film and create lifting force at the interface via thermal gradient to minimize interfacial rubbing of surfaces and the associated wear. The approach is based on manipulating the flow behavior via thermocapillary, which describes how a liquid can be made to flow from ...
liquids, etc ; asymmetry; droplets; hydrophobicity; kinetic energy; oxidation; wettability; Show all 7 Subjects
Abstract:
... The unbalanced capillary force provided by wettability patterns, non-uniform/asymmetric microtextures enables directional droplet transport, while macrotextures have shown potentials in reducing the contact time. Inspired by these findings, we design millimeter superhydrophobic stepped surfaces to simultaneously achieve highly steerable directional bouncing and contact time reduction of impacting ...
liquids, etc ; beets; betalains; chemical degradation; ethanol; mathematical models; particle size; temperature; Show all 8 Subjects
Abstract:
... The extraction kinetics of betalains (betacyanin and betaxanthin) from freeze dried beetroot powder into aqueous ethanol solutions is modelled by considering the concentration of a given betalain at any given time to result from a balance between the rate of its release from the solid phase and the rate of its chemical degradation in the extract phase. The mathematical model obtained shows that th ...
liquids, etc ; antigen-antibody reactions; electrochemistry; electrodes; electrolytes; gels; immunosensors; virion; viruses; Show all 9 Subjects
Abstract:
... Conventional airborne virus measurement usually requires appreciable sampling and detection times. Viral aerosols should also be collected or prepared in a liquid medium whose volume typically ranges from milliliters to tens of milliliters; hence, many sampling and detection steps need to be taken with the unit horizontal or immobile. Moreover, viral aerosols need to be sufficiently enriched, whic ...
liquids, etc ; Bifidobacterium; acetic acid; fermentation; flora; hydrocolloids; intestinal microorganisms; pH; pectins; prebiotics; Show all 10 Subjects
Abstract:
... In the present study, the effects of high pressure processing (HPP) treatment on the in vitro fermentation characteristics of cyanidin-3-glucoside (C3G) -rhamngalacturonan-I (RG-I) pectin were investigated. After 24 h of fermentation, the pH value in the faecal fermentation liquid of HPP-treated C3G-RG-I pectin significantly decreased from 7.03 to 5.59. C3G-RG-I pectin treated by HPP also signific ...
liquids, etc ; cooling; energy; gravity; heat transfer; mass transfer; specific heat; surface tension; viscosity; Show all 9 Subjects
Abstract:
... The supercritical-CO₂ (S–CO₂) cooler is one of the main components in S–CO₂ power system. This work aims at revealing the cooling mechanism of S–CO₂ under wide working conditions to assist the S–CO₂ cooler design. The pseudo-condensation is proposed with the analogy between supercritical cooling and subcritical condensation. From the pseudo-condensation and the traditional turbulent field analysis ...
liquids, etc ; adhesion; biomass; calcium silicate; dolomite; energy; magnesium silicates; rice straw; temperature; thermodynamics; Show all 10 Subjects
Abstract:
... A self-designed tester is used to study the ash adhesion strength of straw biomass and the effect of dolomite additive. TG-DSC, SEM-EDX, XRD and thermodynamic equilibrium are applied to analyze the thermal behaviors, mineral transformation and liquid phase formations of ash samples. The results indicate that the adhesion strength of rice straw ash appears at 600 °C, increases rapidly above 700 °C, ...
ionic liquids, etc ; blood serum; detection limit; electric current; imidazoles; immunosensors; ligands; nanocomposites; nanogold; nanosheets; Show all 10 Subjects
Abstract:
... An imidazolium based ionic liquid was successfully prepared and used as an organic ligand to coordinate with Zn²⁺ to prepare trapezoidal metal-organic frameworks (Zn-MOF) nanosheets. Then, gold nanoparticles (AuNPs) were integrated onto Zn-MOF nanosheets surface to produce AuNPs@Zn-MOF nanocomposites by in-situ reduction of chloroauric acid. AuNPs with size less than 5 nm were uniformly dispersed ...
liquids, etc ; carbon; carbonization; energy; evolution; free radicals; oils; olefin; polymerization; raw materials; slurries; squalene; Show all 12 Subjects
Abstract:
... FCC decant oil was always used as the raw material for the preparation of high-value-added carbonaceous materials. There is little disagreement that the free radical mechanism induces thermal polymerization reactions between reactant molecules and intermediate species, which leads to the formation of carbonaceous mesophase in the early stage of carbonization. Olefinic hydrocarbons were recently fo ...
ionic liquids, etc ; chemical species; dispersibility; food chemistry; liquid-phase microextraction; microstructure; pH; tea; tetrahydrofuran; viscosity; Show all 10 Subjects
Abstract:
... In this study, a novel supramolecular solvent based on surface-active ionic liquid was prepared and used as an extraction solvent for dispersive liquid–liquid microextraction of four triazine herbicides in tea samples. The formation mechanism, microstructure and physicochemical properties of supramolecular solvent were studied. Some parameters, including the molar ratio of surface-active ionic liq ...
... Although thousands of superhydrophobic composites have been reported, it is still a challenge to develop eco-friendly superhydrophobic materials by a simple and low-cost strategy. Here, a paper-based superhydrophobic material was prepared by carbon fiber powders and polydimethylsiloxane through a facile spraying method. This obtained material has excellent liquid resistance and self-cleaning prope ...
... Polycyclic aromatic hydrocarbons (PAHs) and their oxygenated derivates (O-PAHs) are identified in soils and groundwater of industrialized sites and contribute to the risk for Humans and the Environment. Nevertheless, data are scarce in literature concerning their retention and transfer in soils and no soil - water partition coefficients are available for these compounds. Sorption of two PAHs, fluo ...
... An efficient and attractive platform for synthesizing phosphatidylserine is indispensable for driving large-scale industrial applications. Given the interfacial effect of phospholipase D (PLD), an adequate oil-water interface surface is essential for the catalytic efficiency of PLD. Herein, a simple ball-milling method with ionic liquid was successfully applied to produce cellulose nanofibrils and ...
liquids, etc ; absorption; desalination; desorption; ecological restoration; evaporation rate; hydraulic conductivity; oils; seawater; steam; water purification; wettability; Show all 12 Subjects
Abstract:
... A better knowledge for the design and synthesis of low-cost, novel porous materials is highly desirable in various fields such as recyclable solar desalination and liquid recycling. Herein, a polydimethylsiloxane-based sponge with a web-like three-dimensional (3D) interconnected porous structure was developed for effective recovery of liquids and the continuous interfacial solar steam generation ( ...
... The comparison between the crystallization and phase behavior of binary blends of anhydrous milk fat (AMF)/palm stearin (POs) and POs/palm oil (PO) was investigated. POs/POs blends showed good compatibility, while the compatibility of AMF/POs blends showed no ideal and was dominated by eutectic behavior. And the eutectic growth of blends was found to be a phenomenon that the triacylglycerol (TAG) ...
... Biotreatment of high load hydrogen sulfide (H₂S) can lead to rapid acidification of a bioreactor, which greatly challenges the application of bio-desulfurization technology. In this study, the bio-desulfurization performance was improved by enriching acidophilic mixotrophic sulfur-oxidizing bacteria (SOB) by adding organics under extremely acidic conditions (pH < 1.0). A biotrickling filter (BTF) ...
... The characteristics of biochar produced from the co-pyrolysis of corn stalk (CS) and mulch film (MF) were analyzed. Cellulose, hemicellulose, lignin were applied to explore the synergistic effects of CS and MF during co-pyrolysis. Upon increasing the proportion of MF, the yield of liquid products increased, and the yield of solid products decreased. Interactions of cellulose, hemicelluloses, and li ...
liquids, etc ; acetonitrile; chlorinated hydrocarbons; gas chromatography; hydrophobicity; kapok; lipophilicity; pesticides; standard deviation; triazoles; vegetable oil; vegetables; Show all 12 Subjects
Abstract:
... In this paper, a miniaturized kapok fiber-supported liquid extraction (mini-KF-SLE) method was proposed for selective extraction of pesticide residues in vegetable oils. The natural kapok fiber was used as an inert oil support material based on its hydrophobic and lipophilic properties, and the extraction device was conveniently constructed by loading 15 mg of kapok fiber at the lower middle part ...
liquids, etc ; absorption; absorptivity; carbon nanotubes; electromagnetic field; evaporation rate; heat; nanoparticles; roughness; solar energy; surface roughness; temperature; Show all 12 Subjects
Abstract:
... Hypothesis: Nanostructured materials are widely used for solar energy harvesting and conversion due to their excellent photothermal properties. It is generally accepted that the better the light absorption ability, the better the photothermal conversion efficiency. Experiment: A series of experiments in solar evaporation of liquid marbles (LMs) by coating the droplets with Fe₃O₄, Ni nanoparticles ...
liquids, etc ; X-radiation; absorption; adsorption; carbon; catalysts; corrosion; desorption; electron transfer; energy; hydrogen production; nanosheets; pH; pyrolysis; seawater; Show all 15 Subjects
Abstract:
... Nanostructured electrocatalysts with unique surfaces and interfaces for hydrogen evolution reaction (HER) are crucial for achieving high performance in universal pH water and natural seawater. Herein, a supramolecular liquid precursor was designed and applied to grow NiₓCo₄₋ₓN/N-doped carbon (NC) ultrathin nanosheet arrays (NiₓCo₄₋ₓN/NC) on carbon cloth through one-step pyrolysis. According to the ...