Efficient Hybrid Polymeric Nanocomposite Materials for Water and Wastewater Purification | Hindawi
Study on the Adsorption Performance and Adsorption Mechanism of Graphene Oxide by Red Sandstone in Aqueous Solution. Na Li , ... Adsorption Science & Technology / Published Special Issues / Special Issue. Efficient Hybrid Polymeric Nanocomposite Materials ... Adsorption mechanisms * Organic-inorganic, organic-organic, or inorganic-inorganic nanocomposite adsorbents for water and ... An Effective Biomass for the Adsorption of Methylene Blue Dye and Treatment of River Water. Shaziya H. Siddiqui , Mohammad ...
Functionalized Nanocomposites for Environmental Applications | Hindawi
Adsorption of Monobutyl Phthalate from Aqueous Phase onto Two Macroporous Anion-Exchange Resins. Zhengwen Xu , Yunlong Zhao ... A Novel Absorbent of Nano-Fe Loaded Biomass Char and Its Enhanced Adsorption Capacity for Phosphate in Water. Hongguang Zhou , ...
Competitive Adsorption of Cadmium (II) from Aqueous Solutions onto Nanoparticles of Water Treatment Residual
Noticeably, Cd(II) adsorption was clearly suppressed in the multi-ion system as Cu and Pb form the most stable monohydroxo ... The WTR nanoparticles demonstrated high removal efficiency for Cd from aqueous solution as the adsorption capacities of nWTR ... and FeOOH entities in the adsorption process. The stability of Cd-nWTR surface complexes is evident as less than 0. 2% of ... the metal ions may undergo hydrolysis and the metal adsorption process involved may present as follows [21]:. ...
Efficient Removal of Cr(VI) with Fe/Mn Mixed Metal Oxide Nanocomposites Synthesized by a Grinding Method
The enhanced adsorption capacity was speculated to be ascribed to the synergistic effect of the mixed metal oxides. By ... monitoring the valence change in the adsorption process using XPS characterization, the mechanism for Cr(VI) removal on the ... Compared with metal oxide adsorbents existent, the composites showed good adsorption capacity, stability, and regeneration ... All the adsorption experiments were carried out at 25°C, pH 2, and shaking rate of 200 rpm unless stated otherwise. Adsorption ...
Experimental Investigation into the Effects of Fracturing Fluid-Shale Interaction on Pore Structure and Wettability
... the pore structure and fluid distribution of shale samples were analyzed by utilizing low-pressure liquid nitrogen adsorption ( ... is the adsorption amount, is the gas adsorption equilibrium pressure, is the saturated vapor pressure, is the maximum monolayer ... represent the adsorption process within the pores with nm and nm, respectively [46, 54]. Therefore, and represent the ... After that, the nitrogen adsorption amount reaches its maximum on day 4 and minimum on day 6. Since the nitrogen adsorption ...
An Effective and Efficient Sample Preparation Method for 2-Methyl-Isoborneol and Geosmin in Fish and Their Analysis by Gas...
Recoveries of 2-MIB (a) and GSM (b) after adsorption in different solvents with different adsorption materials. Spiked ... The adsorption rate of these two analytes is examined with silica cartridge (500 mg, 3 mL). The result shows no residue in the ... According to Figure 2, 2-MIB and GSM can be adsorbed by silica when dissolved in n-hexane and have no adsorption when dissolved ... Adsorption of Different QuEChERS Materials. In the beginning, to use the QuEChERS materials for cleanup of the extract, the ...
A First Principle Comparative Study on Chemisorption of H2 on C60, C80, and Sc3N@C80 in Gas Phase and Chemisorption of H2 on...
The adsorption process is facilitated by the application of high pressure. The initial H,sub,2,/sub, adsorption on two adjacent ... Hence the successive adsorption becomes easier with much low barriers (0.6 eV). In addition, further adsorption can ... Thus, a chain reaction path is formed with the initial adsorption dominating the whole adsorption process. ... is destructed by the initial adsorption, some active sites are created. ...
Maxillary Bone Regeneration Based on Nanoreservoirs Functionalized ε-Polycaprolactone Biomembranes in a Mouse Model of Jaw Bone...
Adsorption of Ibuprofen on PCL Membrane. To quantify the Ibuprofen attached to the biomaterials, we recovered the soaking ... three adsorptions steps with a 200 ng/mL solution) compared to the soaking approach. Ibuprofen appears to stimulate ... solutions after each adsorption cycle. The optical density was measured at 200 and 350 nm. The amount of Ibuprofen was then ...
Data Analysis in Green Industrial Processes with Modified Chemical Efficiency and Environmental Impact: Smart Urea Production...
In the CO2 adsorption unit, the biggest loss was attributed to adsorption and disposal towers. It is possible to improve the ... gas imaged from adsorption tower, (e) MDEA liquid at the outlet of the adsorption tower, and (f) rivet gas output from the ... The lean amine temperature for adsorption of CO2 and the exhaust gas temperature of the E-2001 converter are TI-2014 and TI- ... The TI-2011 also indicates the temperature of the purified gas from the adsorption tower (Figure 6). As the steam rises, the ...
Competitive and Noncompetitive Batch Sorption Studies of Aqueous Cd(II) and Pb(II) Uptake onto Coffea canephora Husks, Cyperus...
adsorption is promoted by the presence of other metal ions, , no observable net interaction effects, , adsorption is suppressed ... M. Horsfall Jr., A. A. Abia, and A. I. Spiff, "Kinetic studies on the adsorption of Cd2+, Cu2+ and Zn2+ ions from aqueous ... X. Guo, S. Zhang, and X.-Q. Shan, "Adsorption of metal ions on lignin," Journal of Hazardous Materials, vol. 151, no. 1, pp. ... H. Freundlich, "Adsorption in solution," The Journal of Physical Chemistry, vol. 57, pp. 385-471, 1906. ...
Temperature Dependence of Sensors Based on Silver-Decorated Nitrogen-Doped Multiwalled Carbon Nanotubes
The adsorption energy (. ) is defined as , where is the energy of the total system (adsorbent + adsorbate). is the energy of ... crystal plane is used as adsorption site. This approach has been widely used to accurately determine adsorption energies for ... Adsorption energy (. ) of different molecules interacting with (a) (5,5)-single walled carbon nanotubes doped with nitrogen ( ... these results suggest that, in this case, chemisorption may be the main adsorption mechanism. Note that negative values of are ...
K2CO3-Activated Pomelo Peels as a High-Performance Adsorbent for Removal of Cu(II): Preparation, Characterization, and...
The adsorption kinetic data were found to follow the pseudo second-order model. The adsorption isotherms data were analyzed ... The Langmuir model was found to provide the best fit, and the calculated adsorption capacity was 151.35 mg/g. ... The resulting ACs were used for the adsorption of Cu(II) from aqueous solutions in the batch mode and yielded a superior ... adsorption capacity of 139.08 mg/g. The pH of optimum adsorption was determined as 5. Pseudo first-order model, pseudo ...
Nanobiosensor for Detection and Quantification of DNA Sequences in Degraded Mixed Meats
M) of divalent ions (Mg++) neutralizes the negative charges on the phosphate backbones of oligos to allow static adsorption of ... However, the negative charges of oligos inhibit fluorophore adsorption onto the negatively charged GNPs when the fluorescent ...
Investigating the Antimicrobial Activity of Vancomycin-Loaded Soy Protein Nanoparticles
In the adsorption method, the bacteria were cultures in 96-well microplates. 180 µl of the bacteria-containing medium was mixed ...
Textile Industry Effluent Treatment Techniques
... adsorption, ion exchange, coagulation, and filtration). This review also includes the hybrid treatment methods and their cost ... Adsorption) [68]. Removal of malachite green dye applied algae (Marine alga), Mechanisms of degradation (Adsorption) [69]. ... I. D. Mall, V. C. Srivastava, and N. K. Agarwal, "Removal of orange-G and methyl violet dyes by adsorption onto bagasse fly ash ... J. Galán, A. Rodríguez, J. M. Gómez, S. J. Allen, and G. M. Walker, "Reactive dye adsorption onto a novel mesoporous carbon," ...
Synthesis and Properties of Magnetic Carbon Nanocages Particles for Dye Removal
The products were characterized by X-ray diffraction (XRD), nitrogen adsorption-desorption, energy dispersive X-ray ... respectively, represent the absorbance of MO before and after the adsorption [40, 41]:. ... Besides, the equilibrium adsorption capacities (. ) were determined according to the following formula [42]:. wherein is the ... MCNCs adsorption rate is not fast enough, which the adsorption rates of 98.8% in 10 min. ...
A New Photocatalytic System Using Steel Mesh and Cold Cathode Fluorescent Light for the Decolorization of Azo Dye Orange G
and the adsorption constant, (Figure 8). The initial rate was calculated by the first 2 min of Figure 7 with TiO2 loading ... Similarly, the equilibrium adsorption constants (. ) of 0.1257 and 0.0346 L mg−1 from this wok were in the range of previous ... note: the pHzpc of TiO2 is 5.5). Negatively charged TiO2 surface discourages the adsorption of the anion acid dye. The rate ... are the rate constant (mg L−1 min−1), equilibrium adsorption constant (L mg−1), and residual dye concentration (mg L−1), ...
Influence of Alkali Treatment on the Surface Area of Aluminium Dross
N2 adsorption-desorption shows that aluminium dross was type I which is microporous solids. Therefore based on the BET surface ... Figures 1, 2, 3, and 4 are the nitrogen adsorption and desorption isotherms for raw aluminium dross and treated with 1% ... those isotherms can be classified as type I which indicates adsorption and desorption on a microporous solid with pore size ... of isotherms showed high uptakes of nitrogen gas at relatively low pressure due to the narrow pore width and high adsorption ...
Rational Design and Experimental Research on the Self-Assembled System of Thermosensitive Molecularly Imprinted Polymers Formed...
In this study, the thermosensitive MIPs displayed a different adsorption capacity towards NVCL, which could be applied for ... C and the lowest adsorption was at 20°C; also, the MIPs released the intercepted ,i,α,/i,-lipoic acid inside polymers, and the ... The thermosensitive properties showed that the highest adsorption was at 40° ... 3.2.4. Adsorption Selectivity. The adsorption selectivity of MIPs towards the ALA, DHLA, and PBA is concluded in Table 5. The ...
Phase Transitions of Binary Lipid Mixtures: A Combined Study by Adiabatic Scanning Calorimetry and Quartz Crystal Microbalance...
dashed lines) during a typical QCM-D experiment of vesicle adsorption on gold-coated quartz at 16°C. Data for the DMPC + 0.1 ... C. A. Keller and B. Kasemo, "Surface specific kinetics of lipid vesicle adsorption measured with a quartz crystal microbalance ... Heating and cooling cycles were performed after vesicle adsorption to assess the changes in frequency and dissipation, ... Figure 8 illustrates the process of vesicle adsorption for a representative mixture, namely, DMPC + 0.1 DSPC. The same pattern ...
Steric and Solvent Effect in Dye-Sensitized Solar Cells Utilizing Phenothiazine-Based Dyes
... surface during adsorption in the case of THF, which decreased the solar cell performance of the DSSC using THF as adsorption ... as dye-adsorption solvents. Cell performance using EtOH as a dye-adsorption solvent showed relatively higher performance than ... solvent compared with using EtOH as adsorption solvent. Meanwhile, the steric effect of phenothiazine-based (,b ,PT1–3,/ ... The effects of dye-adsorption solvent on the performances of dye-sensitized solar cells based on phenothiazine dyes were ...
Biogas Production and Applications in the Sustainable Energy Transition
Moisture can be removed by refrigerated drying and media adsorption processes. Hydrogen sulfide is removed by media adsorption ... Alternatively, adsorption materials like iron-rich soils and waste material from steel or aluminum production can be used. The ... They include membrane separation, chemical absorption, water scrubbing, and pressure swing adsorption which are well-developed ... chemical scrubbing and biological scrubbing while siloxane is removed by media adsorption and pressure swing adsorption [111]. ...
Mechanical Effects of Solid Water on the Particle Skeleton of Soil: Mechanism Analysis
M. E. Chenevert, "Shale alteration by water adsorption," Journal of Petroleum Technology, vol. 22, no. 9, pp. 1141-1148, 1970. ... T. P. Leão and M. Tuller, "Relating soil specific surface area, water film thickness, and water vapor adsorption," Water ... M. Tuller, D. Or, and L. M. Dudley, "Adsorption and capillary condensation in porous media: liquid retention and interfacial ... More precisely, the water in soils could be classified as (1) adsorption water, also called hygroscopic water; (2) viscous ...
Structure of Colloidal Flocs in relation to the Dynamic Properties of Unstable Suspension
... rate process of polymer reaching to colloidal interface and subsequent reconformation process into more stable adsorption state ... Adsorption of a charged polymer onto the surface of an oppositely charged particle results in the reduction in the net charge ... That is, a cluster fixation would take place at the same time with or at the early stages of polymer adsorption and collision ... Although it is now obvious that the process of particle collision as well as polymer adsorption at early stages of flocculation ...
Cauliflower-Like Co3O4/Three-Dimensional Graphene Composite for High Performance Supercapacitor Applications
N2 adsorption-desorption isotherms of Co3O4 and Co3O4/3D graphene composite. ... This may be because of the effects of the electrostatic adsorption and other chemical bonds between the oxygen-containing ... However, the former is a typical pseudocapacitance behavior, caused by electrochemical adsorption/desorption or a redox ... The specific surface area and pore volume of the samples were determined by analyzing the standard nitrogen adsorption isotherm ...
Immobilization Techniques and Integrated Signal Enhancement for POC Nanocolor Microfluidic Devices
Chips coated by adsorption of streptavidin to a monolayer of high molecular weight PEI (protocol 2) exhibited a significantly ... By addition of blocking agents to the washing solutions or by use of a mask such random adsorption during the washing step ... It was found that by adsorption to a monolayer of high molecular weight PEI the most homogeneous coatings could be generated ... Chips prepared using CMC or PEI were compared with chips coated via adsorption of streptavidin to 3-APTES. Thereby, it was ...
A Review of Sequestration Projects and Application in China
M. X. Fang, CO2 capture by membrane and adsorption technology, Institute for Thermal Power Engineering of Zhejiang University, ... High-pressure CO2 adsorption on the dry Haishiwan coals at 40°C with respect to density (a); CO2 excess sorption isotherms and ... S. D. Golding, I. T. Uysal, C. J. Borehama, D. Kirstea, K. A. Baublysb, and J. S. Esterle, "Adsorption and mineral trapping ... Adsorption is the main trapping mechanism for CO2 storage in coal seams, which accounts for approximately 90% of the total ...
Ultrasound-Mediated Local Drug and Gene Delivery Using Nanocarriers
Besides, nanoparticles coated with polymer chains can protect blood protein from adsorption and particle from recognition by ...
Basic Violet Decolourization Using Alginate Immobilized Nanozirconium Tungestovanadate Matrix as Cation Exchanger
is constant (function of energy of adsorption and temperature) and is a constant related to adsorption intensity. ... Adsorption depends usually directly on electrokinetic behavior of the adsorption or ion exchange materials. Electrokinetic ... is the rate constant of the first-order adsorption, is the amount of dye adsorbed at time ". " (mg/g), and is the amount of dye ... mg/g) is the dye adsorption capacity at time , (mg/L) is the initial dye concentration, (mg/L) is the concentration of C.I. ...
A Fluorescent Sensor for Zinc Detection and Removal Based on Core-Shell Functionalized Fe3O4@SiO2 Nanoparticles
The effective adsorption capacity implied that the proposed method for Zn2+ removal at room temperature was a successful ... the adsorption time is 12 h, and the temperature is 25°C. ...