Sorption Methods in Rehabilitation of Radioactively Contaminated Lands Using Surface-Modified Sorbents Based on Natural Aluminosilicates

MODIFIED SORBENTS AND THEIR APPLICATION FOR EXTRACTION OF METAL IONS

SERIES CHEMISTRY AND TECHNOLOGY ◽

10.32014/2021.2518-1491.9 ◽

2021 ◽

pp. 75-79

Author(s):

N. C. Murzakassymova ◽

N. A. Bektenov ◽

M. A. Gavrilenko

Keyword(s):

Metal Ion ◽

Maximum Permissible Concentration ◽

Carbon Materials ◽

Water Supply Systems ◽

Technological Properties ◽

Surface Modified ◽

High Degree ◽

Supply Systems ◽

Modified Sorbents ◽

Significant Factors

The data on accumulated mining waste in the territory of Kazakhstan are presented. Their processing has become very important in our time. The structure of surface-modified carbon materials with a grafted layer is given. New modified carbon sorbents were obtained, oleum was used as a modifying agent. It was revealed that the capacitive characteristics of the modified sorbent are significantly higher than that of the original one, which will make it possible to more efficiently extract the metal ion from wastewater and technogenic formations. Sorption is an effective method of extracting valuable components from wastewater and man-made formations. This method allows you to recover valuable substances with a high degree of wastewater treatment, which can be purified to the maximum permissible concentration of pollutants and then used in technological processes or in recycling water supply systems. Processing involves ores characterized by a low content of valuable components, fine dissemination and similar technological properties of minerals. The existing technologies for the development of minerals make it possible to use only a small part of the valuable mineral mass extracted from the subsoil, and the rest forms waste, which, as it accumulates and is stored, becomes one of the most significant factors of anthropogenic changes in the environment.

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Sorbents Based on Commercial Cellulose Intended for Radioactively Contaminated Waters and Natural Water Bodies Rehabilitation

Water sector of Russia: problems, technologies, management - Методы оценки и механизмы регулирования водопользования в современных условиях ◽

10.35567/1999-4508-2013-5-4 ◽

2013 ◽

pp. 45-53

Author(s):

Keyword(s):

Natural Water ◽

High Specificity ◽

Water Bodies ◽

Contaminated Water ◽

Cellulose Pulp ◽

Surface Modified ◽

Modified Sorbents ◽

Natural Water Bodies ◽

Contaminated Waters

The possibility of use of cellulose pulp obtained from corn wastes as well as surface-modified sorbents based on this cellulose for decontamination of radioactively contaminated water from caesium, strontium and yttrium radio/nuclides has been studied. High specificity of the modified sorbents with respect to caesium has been shown.

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Analytical Electron Microscopy of Surface-Modified Ceramics

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100118291 ◽

1985 ◽

Vol 43 ◽

pp. 276-279

Author(s):

P. S. Sklad

Keyword(s):

Electron Microscopy ◽

Analytical Electron Microscopy ◽

Theoretical Models ◽

Ceramic Materials ◽

Solute Concentration ◽

Second Phase ◽

Analytical Electron ◽

Implantation Techniques ◽

Lattice Damage ◽

Surface Modified

Over the past several years, it has become increasingly evident that materials for proposed advanced energy systems will be required to operate at high temperatures and in aggressive environments. These constraints make structural ceramics attractive materials for these systems. However it is well known that the condition of the specimen surface of ceramic materials is often critical in controlling properties such as fracture toughness, oxidation resistance, and wear resistance. Ion implantation techniques offer the potential of overcoming some of the surface related limitations.While the effects of implantation on surface sensitive properties may be measured indpendently, it is important to understand the microstructural evolution leading to these changes. Analytical electron microscopy provides a useful tool for characterizing the microstructures produced in terms of solute concentration profiles, second phase formation, lattice damage, crystallinity of the implanted layer, and annealing behavior. Such analyses allow correlations to be made with theoretical models, property measurements, and results of complimentary techniques.

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SPECTRAL CHARACTERIZATION OF REDOX-ACTIVE PRUSSIAN BLUE ON METALLATED PLASMA POLYMER SURFACE MODIFIED CARBON ELECTRODES USING PHOTOTHERMAL DETECTION

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1983645 ◽

1983 ◽

Vol 44 (C6) ◽

pp. C6-285-C6-290 ◽

Cited By ~ 3

Author(s):

J. W. Childers ◽

A. L. Crumbliss ◽

P. S. Lugg ◽

R. A. Palmer ◽

N. Morosoff ◽

...

Keyword(s):

Prussian Blue ◽

Polymer Surface ◽

Spectral Characterization ◽

Plasma Polymer ◽

Carbon Electrodes ◽

Redox Active ◽

Surface Modified

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Surface modified PTFE promotes endothelial cell adhesion and simultaneously inhibits the attachment of platelets and bacteria

The Thoracic and Cardiovascular Surgeon ◽

10.1055/s-0034-1367130 ◽

2014 ◽

Vol 62 (S 01) ◽

Cited By ~ 1

Author(s):

M. Gabriel ◽

H. Weiler ◽

U. Mehlhorn ◽

C.-F. Vahl

Keyword(s):

Cell Adhesion ◽

Endothelial Cell ◽

Surface Modified ◽

Endothelial Cell Adhesion

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Experimental and Theoretical Comparable Study of Pure and Zinc Porphyrin Surface Modified ZnO Nanorod Arrays for Hybrid Solar Cell Applications

10.32792/utq/utjsci/vol7/2/26 ◽

2020 ◽

pp. 114-119

Keyword(s):

Solar Cell ◽

Electrochemical Impedance ◽

Hybrid Solar Cell ◽

Cell Performance ◽

Solar Cell Performance ◽

Solar Cell Efficiency ◽

Cell Efficiency ◽

Annealing Effects ◽

Vertically Aligned ◽

Surface Modified

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.

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