FTIR spectroscopy Articles
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Grafted cellulose acetate reverse osmosis membrane using 2-acrylamido-2-methylpropanesulfonic acid for water desalination
Reverse osmosis (RO) membranes based on cellulose acetate (CA), were prepared using a phase inversion technique. To improve the hydrophilicity, salt rejection and water flux of these membranes, a novel grafting of 2-acrylamido-2-methylpropanesulfonic acid (AMPSA) was added on the top surface of the CA-RO membranes. The grafted CA-RO membranes were characterized by Fourier transform infrared ...
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How Does a Hydraulic Press Work? | Interactive Guide
A hydraulic press is a compression device that makes use of an exerted force placed upon a fluid, to create a resulting force according to Pascal's Law. It was actually invented by Joseph Bramah, so is also known as the Bramah Press. If diagrams do not animate, try reloading your browser. Microsoft browsers (IE, Edge) may not work. What is Pascal's Law? The Hydraulic Principle explained ...
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Optimisation of bioflocculant production by a biofilm forming microorganism from poultry slaughterhouse wastewater for use in poultry wastewater treatment
Poultry slaughterhouse wastewater contains nutrients that are sufficient for microbial growth; moreover, the wastewater has microorganisms which can be harnessed to perform specific functions. Additionally, these microorganisms can grow either in planktonic (free floating) mode or sessile (attached) mode. This study focused on the optimisation of bioflocculant production by quantifying ...
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Degradation mechanism of Methyl Orange by electrochemical process on RuOx–PdO/Ti electrode
The electrochemical degradation of Methyl Orange in 0.1 M NaCl solution over RuOx–PdO/Ti anode was investigated. Chemical oxygen demand (COD), ion chromatography (IC), Fourier Transform Infrared Spectroscopy (FTIR) and Gas chromatography-mass spectrometry (GC-MS) were employed to detect the intermediates formed during the electrochemical degradation. In the present reaction system, Methyl Orange ...
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Adsorption of methylene blue from aqueous solutions using water treatment sludge modified with sodium alginate as a low cost adsorbent
In this research, aluminum-based drinking water treatment sludge is used as a starting material and immobilized by sodium alginate to develop low cost adsorbent for the removal of methylene blue (MB) from aqueous solutions. The studied variables included pH, adsorbent dose, initial MB concentration and contact time. Characteristics of the adsorbent were also studied using scanning electron ...
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Comparison of coagulation, ozone and ferrate treatment processes for color, COD and toxicity removal from complex textile wastewater
In this study, the comparative performance of coagulation, ozone, coagulation + ozone + coagulation and potassium ferrate processes to remove chemical oxygen demand (COD), color, and toxicity from a highly polluted textile wastewater were evaluated. Experimental results showed that ferrate alone had no effect on COD, color and toxicity removal. Whereas, in combination with FeSO4, it has shown ...
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Measuring Oil Chemistry: Nitration, Oxidation, and Sulfation
An in-service lubricant encounters air, heat, pressure, corrosive agents, and other factors that cause chemical changes in the oil. A change in oil chemistry can affect the ability of the lubricant to do its job (for example if crucial additives have been depleted). Over time, these chemical reactions can result in build-up of harmful degradation by-products like weak organic acids. Oil chemistry ...
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Bioremediation of synthetic fatliquors under microaerobic condition
Synthetic fatliquors are useful as a fatliquoring agent, flotation agent and emulsifying agent in a wide range of industrial applications such as leather, pharmacy and farm chemicals. These fatliquors remain recalcitrant to natural biota in existing treatment plants. In the present study, the isolated microaerophilic Serratia sp. HA1 strain CSMB3 is capable of utilizing structurally different ...
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Gamma-irradiation synthesis of quaternary phosphonium cationic starch flocculants
Quaternary phosphonium cationic starch (St-g-AM/ATPPB) flocculant was synthesized by using corn starch and acrylamide (AM), allyl triphenyl phosphonium bromide binary (ATPPB) through simultaneous gamma-irradiation. The chemical structure of the copolymer was characterized by FTIR (Fourier transform infrared spectroscopy) and 1H NMR (nuclear magnetic resonance) technologies. The effects of the ...
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Analyzing ageing rosebuds using ATR
The Quest ATR is great for analyzing plant bud samples because: samples can be analyzed without altering their state through pellet pressing, or other sample preparation even awkward samples are easy to introduce and can be cleaned away quickly, giving users a high throughput changeable diamond, diamond extended-range, ZnSe and germanium pucks offer users a very broad IR spectral range ...
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Surface modified polythiophene nanocomposite using HPC and DBSNa for heavy metal ion removal
In the present work, surface modified nanocomposite adsorbents polythiophene (PTh)/rice husk ash (RHA) have successfully been synthesized in the presence of hydroxyl propyl cellulose (HPC) and sodium dodecyl benzene sulfonate (DBSNa) as surfactants. The synthesized nanoparticles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier ...
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Treatment of Pb ion contaminated wastewater using hazardous parthenium (P. hysterophorus L.) weed
In this study, a low-cost, sustainable biosorbent parthenium (P. hysterophorus L.) weed powder was investigated for the treatment of Pb contaminated wastewater. Physicochemical characteristics of the biosorbent were measured, namely, bulk density as 0.42 g cm−3, porosity as 45%, BET surface area as 20.79 m2 g−1, particle size as <125 μm, moisture content as 68% and point of zero charge as ...
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FTIR products explained | Spectroscopy Guides
FTIR range available from Specac At Specac, we produce a diverse selection of FTIR spectroscopy accessories, which can fit in a range of spectrometers. Primarily an optics company with a long history of meeting the needs of both industrial and laboratory customers, Specac's spectrometer accessories have been designed with wisdom and experience gained over 45 years. Please read some highlights ...
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Facile fouling resistant surface modification of microfiltration cellulose acetate membranes by using amino acid
l -DOPAA major obstacle in the widespread application of microfiltration membranes in the wet separation processes such as wastewater treatment is the decline of permeates flux as a result of fouling. This study reports on the surface modification of cellulose acetate (CA) microfiltration membrane with amino acid l-3,4-dihydroxy-phenylalanine (l-DOPA) to improve fouling resistance of the membrane. The ...
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Moisture in Oils: The Three-Headed Beast
Abstract Moisture contamination in in-service lube oils is perhaps one of the most destructive forms of engine corrosion second only to particle contamination. Water contamination in oil can be categorized into three forms of water; Free, emulsified, and dissolved. All forms of water have direct consequences to the oil and gears of the engine, but indirect consequences as well. Direct ...
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Nano-TiO2, ultrasound and sequential nano-TiO2/ultrasonic degradation of N-acetyl-para-aminophenol from aqueous solution
The application of nano-TiO2 as adsorbent combined with ultrasound for the degradation of N-acetyl-para-aminophenol (AAP) from aqueous solution was investigated. The nano-TiO2 was characterized by means of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), and attenuated total reflection–Fourier ...
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Mercury sorption by silica/carbon nanotubes and silica/activated carbon: a comparison study
Nanocomposites of silica incorporated with carbon nanotubes (silica/CNT) and activated carbon (silica/AC) were synthesized and characterized by scanning electron microscopy (SEM), element mapping, energy dispersive X-ray spectroscopy (EDX), thermogravimetric analyzer (TGA) and Fourier transform infrared spectroscopy (FTIR). Silica/CNT and silica/AC were investigated for efficient removal of ...
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Aura – Characterising Gases Using Raman Spectroscopic Techniques
Aura – Characterising Gases Using Raman Spectroscopic Techniques Raman spectroscopy is long established as a non-destructive chemical analysis technique capable of providing detailed compositional information. The technique is also capable of distinguishing between allotropes of the same material. Whilst Raman is useful for measuring solids and liquids, the weak Raman scattering effect ...
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Fouling analysis of polysulfone ultrafiltration membranes used for drinking water treatment
Natural organic matter (NOM) plays a significant role in the fouling of ultrafiltration membranes in drinking water treatment processes. For a better understanding of the interaction between fractional components of NOM and polysulfone (PS) ultrafiltration membranes used for drinking water treatment, fouling and especially the physically irreversible fouling of natural organic matter were ...
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Removal of heavy metals from aqueous solution by limestone
This study focused on the removal of Pb(II), Cd(II), Cu(II), and Zn(II) using reagent solutions by natural limestone in a batch system. The sorbent, collected from the Late Cretaceous limestone beds, Tunisia, was characterised by X–ray diffraction (XRD), chemical analysis (XRF) and infrared spectroscopy (FTIR). XRF showed that the studied limestone contained high amount of calcium carbonates. XRD ...
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