Silica Membrane
Investigation of carrier gas transport through silica membrane for ethyl lactate separation and voc emission applications
... Ethyl lactate has played a major role in daily living and chemical industry including fragrance, lubricant, additives and plasticizers. The esterification process of lactic acid and ethanol is an tive removal of the ...
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Solid Phase Extraction of Ultra Traces Copper (II) Using Octadecyl Silica Membrane Disks Modified by a New Schiff Base Prior to Determination by Flame Atomic Absorption
... octadecyl silica membrane disk modified by a recently synthesized Schiff base (N,Nbis(2-hydroxy-4- methoxybenzaldehyde)-2,6-diaminopyridine) and flame atomic absorption spectrometry is ...
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Theoretical Performance Evaluation of Inorganic (Non Pd-Based) Membranes for Hydrogen Separation
... the silica membrane is decreased from ...polymeric membrane applications show higher CO content in the permeate stream with respect to the silica ...
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Ultrasound-assisted emulsification microextraction and preconcentration of trace amounts of silver ions as a cyclam complex
... Separation, preconcentration and determination of trace amounts of silver ion in aqueous samples using octadecyl silica membrane disks modified with some recently synthesized mixed aza-t[r] ...
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High Molecular Permeance Dual Layer Ceramic Membrane for Capturing CO2 from Flue Gas Stream
... dual-layer silica membrane was fabricated on macro porous alumina supports using a dip-coating ...fabricated membrane are governed by surface multilayer diffusion with small influence of Knudsen flow ...
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The effect of amorphous rice husk silica to the polysulfone membrane separation process
... the membrane were measured by an Ultrafiltration cross flow filtration experimental setup feed with distilled water at a transmembrane pressure of 2 ...The membrane performance of permeation water flux ...
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Multi-Layer Silica Ceramic Membrane for Flue Gas and Natural Gas Separations
... multi-layered silica membrane were carried using the permeation system and the apparatus set-up as depicted in ...the membrane and create a seal. The pressure difference across the membrane ...
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Comparison of RNA extraction methods from biofilm samples of Staphylococcus epidermidis
... using silica membrane or organic extraction methods, and enzymatic or mechanical cell lysis, and evaluated the RNA quality obtained from two distinct ...
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Sweetening of Natural Gas Through Hollow Silica Nanoparticles Embedded Hydroxyethyl Cellulose Membrane
... polymeric membrane was slowly peeled off from the glass plate carefully and stored in a proper ...hollow silica membrane is illustrated in the Figure ...
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The effect of synthetic silica on ultrafiltration PSf membrane
... all different wastewater concentration compared to the others membrane. Rejection at different wastewater concentration shows that the highest rejection is given by 2 wt.% of silica membrane by using ...
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Cr(VI) Removal from Aqueous Solution by Chitosan/Carboxylmethyl Cellulose/Silica Hybrid Membrane
... hybrid membrane decreased with an increase in tem- perature and it indicated that the process was ...hybrid membrane were examined in different pH solution at initial dye concentration 120 mg/L, contacting ...
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Techno-economic evaluation of helium recovery from natural gas; A comparison between inorganic and polymeric membrane technology
... A membrane separation process may offer a more efficient production system with smaller footprint and lower operational cost than the conventional cryogenic ...porous silica and carbon molecular sieve (CMS) ...
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Polyamide/nano mixed matrix membranes for pervaporation dehydration Ethylene glycols
... nano silica on mixed matrix membrane ...nano silica adding to polyamide on concentration of ethylene glycols in permeate ...nano silica loading was ...nano silica adding on separation ...
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Porosity Study of Hybrid Silica Mesostructure in Aluminium Oxide Membrane Columnar by Cyclic Voltammetry Method
... Synthesis of the hybrid-AOM template started with the preconditioning of the substrate. AOM was heated at 110 °C for 5 minutes prior to use to ensure that the membrane was free from moisture, which can cause ...
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New micro-solid phase extraction techniques based on mesoporous materials for selected antibiotic and antifungal agents
... To develop and apply mesoporous silica Mobil Composition Matter, MCM-41 solid phase membrane tip extraction (MCM-41-SPMTE) coupled with high performance liquid[r] ...
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Synthesis of a Multilayer Ceramic Membrane Used for Hydrogen Separation at High Temperature
... dense silica layer is achieved by an activated diffu- sion transport through the membrane ...Therefore, membrane structure can exclude permeance of gases with larger kinetic diameter like CH 4 ...
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Strength, Rapid Chloride Penetration and Microstructure Study of Cement Mortar Incorporating Micro and Nano Silica
... amorphous silica particles of MS and NS react with the CH produced by cement hydration resulting in the formation of additional CSH gel that fills the voids in the cement ...with silica particles leading to ...
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High Performance Nanocomposite Cation Exchange Membrane: Effects of Functionalized Silica-Coated Magnetic Nanoparticles
... The surface and cross sectional SEM images of nanocomposite membranes having 0.5 and 2 wt % nanoparticles are shown in Figure 6. The nanoparticles can change the morphology of membrane’s surface and provide higher ion ...
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Fabrication and characterisation of photonic nanowires
... and 3 drops of conc. HCl as catalyst. The sol was then allowed to stir for ~20mins and infiltrated into 200 nm diameter porous alumina under vacuum assist using 2-3 drops of solution. The sample was allowed to dry in air ...
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The effect of polyethelene glycol on the performance of polysulfone membrane blend with silica from rice husk
... husk silica (RHS) on the performance of polysulfone (PSf) blended with polyethylene glycol (PEG) membranes were ...The membrane performance was analyzed by using pure water flux, humic acid for the ...
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