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Über die Adsorption in Lösungen

A review on heavy metal pollution, toxicity and remedial measures: Current trends and future perspectives

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Elements Of Chemical Reaction Engineering

Progressive utilisation prospects of coal fly ash: A review

Microstructural characteristics of geopolymer materials with twenty eight days of curing and after eight years stored at room temperature

Cfd and Radiation Field Modeling of the Netmix Milli-Photocatalytic Reactor For N-Decane Oxidation at Gas Phase: Effect of Leds Number and Arrangement

\n This work reports the preparation of rattan-derived carbon electrodes and their application in capacitive deionization technology for desalination. Desalination tests were performed with different concentrations of simulated seawater in a continuous mode with gravity as the driving force and applied voltages of 0.8 and 1.2 V. Electrosorption kinetics were performed to verify desalination of the saline solutions over time. Scanning electron microscopy revealed that the microstructure of the biomorphic carbon is composed of porous microchannels with diameters of around 300 mm, which allowed both fluid flow and ion retention. The kinetics of the electrosorption presented excellent results concerning desalination of highly concentrated solutions using low voltages.

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Biomorphic microchanneled electrodes for enhanced water desalination through capacitive deionization

Lumped analysis criteria for heat transfer in a diluted co – current moving bed heat exchanger with isothermal walls

Core–shell Fe2O3@C nanoparticles are very studied due to its biocompatibility with plant and animals cells and due its special properties of chemical adsorption. Thus, the definition of an easy synthesis method of these nanoparticles is very important to the scientific studies and to future applications of these materials. For example, the properties of these nanoparticles depend of the combination between some processing parameters, as the temperature, time, chemical composition, atmosphere and others. The mass yield of the synthesis processes depend of these parameters and are important information. In this work the effect of temperature and of the concentration of the iron precursor were evaluated on the characteristics of the proposed nanoparticles. The nanostructures of Fe2O3 coated with carbon (Fe2O3@C) were synthetized by adapted co-precipitation hydrothermal rote. In 40.0 ml of distilled water was added 1.800 g of glucose, 6.006 g of urea, 0.500 g of polyethylene Glycol (PEG 1500) and different concentrations of iron nitrate Fe (NO2)3.9H2O and different temperature values were applied. The Fe2O3@C core-shell were characterized by scanning electron microscopy (SEM/FEG), Energy Dispersive Scanning (EDS) and X-ray Diffractions (XRD). Results showed that nanoparticles form clusters with different sizes that are dependent on the temperature values and Fe (NO3)3.9H2O concentration. The core-shell mass has a linear relation with the iron precursor mass and the reaction temperatures influences the microstructure of the core-shell nanoparticles.

Cíntia Soares

Papers

Microstructural characteristics of geopolymer materials with twenty eight days of curing and after eight years stored at room temperature

Cfd and Radiation Field Modeling of the Netmix Milli-Photocatalytic Reactor For N-Decane Oxidation at Gas Phase: Effect of Leds Number and Arrangement

Biomorphic microchanneled electrodes for enhanced water desalination through capacitive deionization

Lumped analysis criteria for heat transfer in a diluted co – current moving bed heat exchanger with isothermal walls

Iron-Carbon Core-Shell Nanoparticles Obtained with Different Conditions of Synthesis