Removal of Cr(VI) Species from Aqueous Solution by Different Nanoporous Materials

Ghashghaee, Mohammad; Vahid, Farzaneh

doi:10.29252/arakmu.10.6.15

Cited by 20 publications

(9 citation statements)

References 28 publications

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“…6.48. Raman data on polyvinyl alcohol (PVA) functionalization of few-layer graphene (left [255]) and of SWCNT (right [256]) [240] pieces, including multiple-layer ones, similar PL emissions were observed (Table 6.2) [240,257].…”

Section: Optical Properties Of Some Nanosized Carbon Forms and Expand...mentioning

confidence: 71%

“…Oxoanions of hexavalent Cr, Mo, and W are very harmful to living organisms. Hexavalent chromium, Cr(VI), is a cancerogen [257] and is able to modify the DNA transcription process in living cells leading to chromosomal aberrations [258][259][260]. Acute exposure to Cr (VI) compounds causes nausea, diarrhea, kidney, liver, and gastric damage, internal hemorrhage, lung cancer, ulcer formation, and respiratory problems [260][261][262][263].…”

Section: ))mentioning

confidence: 99%

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Carbon nanomaterials of graphite-like structure and their composites: physics, chemistry and technology

Sementsov¹,

Кartel²,

Nedilko³

et al. 2022

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The book considers the patterns of formation of the structure and properties of sp2-hybridized carbon nanoformations: nanotubes (CNTs), expanded graphite (EG), graphene nanoparticles and composite materials (CM) with their participation with carbon, polymer and ceramic matrices, including EG-CNTs composite, as well as the mechanism of influence of low content of nanosized fillers on the functional and operational characteristics of the created nano-CM. It is experimentally confirmed that the mechanism of strengthening of low-filled matrices consists in creation by a grid of CNTs of layers of the matrix in a nanosized state with improved characteristics. The monograph is intended for specialists in the field of physical and chemical material science.

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Section: Optical Properties Of Some Nanosized Carbon Forms and Expand...mentioning

confidence: 71%

Section: ))mentioning

confidence: 99%

Carbon nanomaterials of graphite-like structure and their composites: physics, chemistry and technology

Sementsov¹,

Кartel²,

Nedilko³

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Такі іони хрому є, зокрема, канцерогенними, так як здатні модифікувати процес транскрипції ДНК у живих клітинах [1][2][3][4]. Крім того, сильна дія сполук, що містять Cr (VI), викликає нудоту, діарею, пошкодження нирок, печінки та шлунку, внутрішній крововилив, утворення виразки та дихальні проблеми [4][5][6][7].…”

Section: вступunclassified

PROSPECTS FOR THE USE OF CARBON NANOTUBES AS RESISTIVITY SENSORS OF CrO42- MOLECULAR ANIONS

Борисюк¹,

Nedilko²,

Хижний³

2018

SEMST

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“…The heavy metal pollution is dangerous for the human health [14][15][16]. The Pb 2+ ion is a kind of heavy metals frequently found in liquid waste [3].…”

Section: Introductionmentioning

confidence: 99%

FABRICATION OF Mg-Zn-Al HYDROTALCITE AND ITS APPLICATION FOR Pb2+ REMOVAL

et al. 2019

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The fabrication of Mg-Zn-Al Hydrotalcite (HT) was carried out by the co-precipitation method at various molar ratios. The Mg-Zn-Al HT compound at the optimum molar ratio was then calcined to determine the effect of calcination on the Pb 2+ adsorption. The kinetics of the adsorption type was determined by applying pseudo first order and pseudo second order kinetics models. Meanwhile, to investigate the adsorption process, the Freundlich and Langmuir equations were applied to determine the adsorption isotherm. The results showed that the optimum Mg-Zn-Al HT was at a molar ratio of 3 : 1 : 1 with an adsorption efficiency of 73.16 %, while Mg-Zn-Al HT oxide increased the adsorption efficiency to 98.12 %. The optimum condition of Pb 2+ removal using Mg-Zn-Al HT oxide was reached at pH 5 and a contact time of 30 minutes. The adsorption kinetics follows the pseudo second order kinetics model with a rate constant of 0.544 g/mg·min. The isotherm adsorption follows the Langmuir isotherm model with a maximum capacity of 3.916 mg/g and adsorption energy of 28.756 kJ/mol.

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Removal of Cr(VI) Species from Aqueous Solution by Different Nanoporous Materials

Abstract: Background: The removal of toxic metals from sewage and wastewaters is one of the most

Cited by 20 publications

References 28 publications

Carbon nanomaterials of graphite-like structure and their composites: physics, chemistry and technology

Carbon nanomaterials of graphite-like structure and their composites: physics, chemistry and technology

PROSPECTS FOR THE USE OF CARBON NANOTUBES AS RESISTIVITY SENSORS OF CrO42- MOLECULAR ANIONS

FABRICATION OF Mg-Zn-Al HYDROTALCITE AND ITS APPLICATION FOR Pb2+ REMOVAL

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