FTIR spectroscopy Articles
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Facile preparation of a novel catalytic particle electrode from sewage sludge and its electrocatalytic performance in three-dimensional heterogeneous electro-Fenton
A novel type of catalytic particle electrode (SAC-Fe) was developed from sewage sludge and iron sludge via a facile method. The catalytic particle electrodes (CPEs) were also supposed to be heterogeneous catalyst for electro-Fenton (EF). The CPEs were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). SAC-Fe showed ...
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Removal of Fast Green FCF dye from aqueous solutions using Flower Gel as a low-cost adsorbent
The purpose of this study was to investigate the removal of Fast Green FCF dye from aqueous solutions using Flower Gel in a batch adsorption process. The effect of different parameters such as pH, contact time, adsorbent dosage, stirrer speed and temperature were studied, and various isotherms including Langmuir, Freundlich and Tempkin were applied. The adsorbent characteristics were ...
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Mechanism of adsorption of ferric iron by extracellular polymeric substances (EPS) from a bacterium
Acidiphilium sp.The aim of this study was to assess the sorption of Fe(III) by extracellular polymeric substances (EPS) of the Acidiphilium 3.2Sup(5) bacterium, which has promising properties for use in microbial fuel cells (MFC). The EPS of A. 3.2Sup(5) was extracted using EDTA. The sorption isotherms were determined using aliquots of purified EPS. The exosubstances loaded with metal were characterized by ...
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Forensic micro-fiber evaluation using Microscopy | Spectroscopy Solutions
Forensic investigations commonly involve the collection of textile fibers when examining crime scenes. The need to characterize and identify those fibers is vital as they can provide extensive information relating to a crime, tying a suspect to a location. Microscopic fibers in particular can present problems in terms of both size and quantity of sample. Fourier transform Infrared spectroscopy ...
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Influence of surface modification by sulfuric acid on coking coal's adsorption of coking wastewater
Coking coal, the raw material of a coke plant, was applied to the adsorption of coking wastewater. In this study, coking coal was directly treated with sulfuric acid to improve its surface properties and adsorption ability. Acid treatment was carried out at various concentrations, by varying from 0.001 to 1 mol/L. The samples were characterized by ash content analysis, scanning electron ...
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The role of Arthrobacter viscosus in the removal of Pb(II) from aqueous solutions
The aim of this paper was to establish the optimum parameters for the biosorption of Pb(II) by dead and living Arthrobacter viscosus biomass from aqueous solution. It was found that at an initial pH of 4 and 26 °C, the dead biomass was able to remove 97% of 100 mg/L Pb(II), while the living biomass removed 96% of 100 mg/L Pb(II) at an initial pH of 6 and 28 ± 2 °C. The results were modeled ...
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Effect of various structure directing agents on the properties of nanostructured conducting polyaniline
In this study the effects of various structure directing agents on the size, morphology, chemical structure and electronic properties of various (Nano Structured Polyaniline) NSPANI were investigated. A number of chemical synthesis of NSPANI were carried out using various Structure Directing Agents (SDA) like Sodium Dodecyl Sulphate (SDS), Sodium Dodecyl Benzene Sulphonate (SDBS) and Camphor ...
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Sequestration of hexavalent chromium from aqueous solutions by activated carbon derived from Macadamia nutshells
The purpose of this study was to investigate the feasibility of activated carbons prepared from Macadamia nutshells as an efficient adsorbent for the removal of hexavalent chromium (Cr(VI)) from aqueous solutions. The activated carbon was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), CHNS analyzer and Brunauer–Emmett–Teller (BET). For ...
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Transformer oil FTIR testing | Spectroscopy Solutions
The United Kingdom is powered by a huge grid of pylons, conducting electricy across hundreds of miles. Thanks to this network of transmitters, we can switch on the lights, boil a kettle and visit the Specac website to read this article. Like any piece of equipment, pylons require maintenance. As high voltage electricy (up to 750,000 volts) surges through the pylons, transformers are used to ...
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Application of response surface methodology and artificial neural network: modeling and optimization of Cr(VI) adsorption process using Dowex 1X8 anion exchange resin
We report the adsorption efficiency of Cr(VI) on a strong anionic resin Dowex 1X8. The Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) analysis of this adsorbent were investigated. Response surface methodology was applied to evaluate the main effects and interactions among initial pH, initial Cr(VI) concentration, adsorbent dose and temperature. Analysis of variance ...
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Polymer Characterization -- BOC Sciences
Polymer testing and characterization is a key to solving the relationship between material composition, structure, and performance. Through a series of characterization techniques, the size, morphology, structure, chemical composition, thermal properties, mechanical properties, etc. of polymers can be studied qualitatively and quantitatively. This is a complex and multi-faceted process that ...
By BOC Sciences
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Study on preparation, morphology, and some properties of EVA/silica nanocomposites
The effect of Silica Nanoparticles (SNP) on the structural, morphologial mechanical, rheological and thermal properties of ethylene vinyl acetate copolymer (EVA) containing 18 wt.% vinyl acetate has been investigated. The EVA/silica nanocomposites (ENCs) were prepared by in–situ synthesis method from tetraethoxysilane (TEOS). The obtained samples have been characterised by Fourier Transform ...
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Quaternized triethanolamine-sebacoyl moieties in highly branched polymer architecture as a host for the entrapment of acid dyes in aqueous solutions
This paper reports the synthesis of a hyperbranched polymer by a cost-effective one-step copolymerization of A3 and B2 monomers, namely, triethanolamine and sebacoyl chloride, respectively, followed by methylation of tertiary amine groups. The structure of the hyperbranched polymer QTEAS as an efficient material for the removal of acid dyes was demonstrated by Fourier transform infrared ...
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Preparation and characterization of EDTAD-modified magnetic-Fe3O4 chitosan composite: application of comparative adsorption of dye wastewater with magnetic chitosan
Ethylenediaminetetraacetic dianhydride (EDTAD)-modified magnetic-Fe3O4 chitosan (EMC), prepared using the cross-link agent glutaraldehyde and chemicals Fe3O4, chitosan, and EDTAD, was used to compare the adsorption of methylene blue (MB) with magnetic chitosan (MC). The composite structure was confirmed by multiple characterization techniques, including scanning electron microscopy (SEM), X-ray ...
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Investigation of equilibrium and kinetics of Cr(VI) adsorption by dried Bacillus cereus using response surface methodology
In this study, response surface methodology (RSM) based on three-variable-five-level central composite rotatable design was used to analyze the effects of combined and individual operating parameters (biomass dose, initial concentration of Cr(VI) and pH) on the Cr(VI) adsorption capacity of dried Bacillus cereus. A quadratic polynomial equation was obtained to predict the adsorbed Cr(VI) ...
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What is a pellet die? | Spectroscopy Guides
A pellet die is a simple tool used to form thin cylindrical pellets from a powder using a pellet press. At its simplest, a pellet die consists of a hollow cylindrical body capped at one end, which forms a blind tube into which a powder sample is poured. How does a pellet die work? The cap usually forms the base of the die. A plunger is then inserted into the tube to complete the assembly. ...
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Microbiologically influenced corrosion in dairy effluent
Abstract: In the dairy industry mild steel is used as the construction material for the effluent treatment plants, pipelines, reinforcement in concrete structures etc. The steel exposed to the dairy effluent faces corrosion due to the microbes. In the present study the role of microbes in dairy effluent on the corrosion of mild steel has been investigated. Pseudomonas sp., Streptococcus sp., ...
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Remote sensing of emissions: new technologies and recent work
The Second International Workshop on Remote Sensing of Emissions: New Technologies and Recent Work was held April 1-3, 2008. The workshop was sponsored by the U.S. Environmental Protection Agency's (EPA) Office of Air Quality Planning and Standards at Research Triangle Park (RTP), Office of Research and Development (RTP), and Office of Solid Waste and Emergency Response (HQ). At the workshop, ...
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Synthesis and application of a ternary composite of clay, saw-dust and peanut husks in heavy metal adsorption
The adsorption of a multi-component system of ferrous, chromium, copper, nickel and lead on single, binary and ternary composites was studied. The aim of the study was to investigate whether a ternary composite of clay, peanut husks (PH) and saw-dust (SD) exhibited a higher adsorption capacity than that of a binary system of clay and SD as well as a single component adsorbent of PH alone. The ...
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Equilibrium analysis for heavy metal cation removal using cement kiln dust
Ion exchange, reverse osmosis, and chemical precipitation have been investigated extensively for heavy metal uptake. However, they are deemed too expensive to meet stringent effluent characteristics. In this study, cement kiln dust (CKD) was examined for the removal of target heavy metals. Adsorption studies in completely mixed batch reactors were used to generate equilibrium pH adsorption ...
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