Sorption characteristics of bismuth tungstate nanostructure for removal of some radionuclides from aqueous solutions

2021 ◽  
pp. 119478
Author(s):  
M.I.A. Abdel Maksoud ◽  
N.M. Sami ◽  
H.S. Hassan ◽  
A.S. Awed
Keyword(s):  
Aqueous Solutions ◽  
Bismuth Tungstate ◽  
Sorption Characteristics

scholarly journals SILVER(I) PRECONCENTRATION USING m-AMINOPHENOL CONTAINING SORBENT FROM AQUEOUS SOLUTIONS

2021 ◽  
pp. 37-42
Author(s):  
N.T. Afandiyeva ◽  
◽  
A.M. Maharramov ◽  
F.M. Chiragov ◽  
◽  
...  
Keyword(s):  
Maleic Anhydride ◽  
Aqueous Solutions ◽  
Metal Concentration ◽  
Sorption Capacity ◽  
Final Stage ◽  
Sorption Process ◽  
Multiple Use ◽  
Polymeric Sorbent ◽  
Styrene Copolymer ◽  
Sorption Characteristics

The influence of sorption characteristics on the removal of silver(I) has been examined. The sorption capacity of chelating polymeric sorbent, based on maleic anhydride styrene copolymer modified with m-aminophenol, towards Ag(I) ions was studied. The pH of sorption was maximum at the value 6. With the increasing of initial metal concentration, sorption of silver(I) increases and reached maxima at val-ue 80∙10-3 M. At the final stage, the elution process of Ag(I) was established and find that HNO3 1 M is the best elution agent. Multiple use of the regenerated sorbent for sorption process is possible. This study shows that using of mentioned sorbent modified with m-aminophenol is effective for removal of silver(I) ions from aqueous solutions

Sorption Characteristics and Separation of Rhenium Ions from Aqueous Solutions Using Modified Nano-Al2O3

2012 ◽  
Vol 51 (15) ◽  
pp. 5577-5584 ◽  
Author(s):  
Lei Zhang ◽  
Xiao Q. Jiang ◽  
Tian C. Xu ◽  
Li J. Yang ◽  
Yun Y. Zhang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Sorption Characteristics

scholarly journals Sorption characteristics of economically viable silicate sorbents for sequestration of lead ions from aqueous solutions

2017 ◽  
Vol 3 (3) ◽  
pp. 213-221 ◽  
Author(s):  
S.B. Yarusova ◽  
P.S. Gordienko ◽  
Ramya Krishna ◽  
Yu.A. Azarova ◽  
A.P. Suponina ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Lead Ions ◽  
Sorption Characteristics

Co-Sorption Characteristics of Zn(II) and As(V) on Mixed Fe/Al-PILCs

2013 ◽  
Vol 681 ◽  
pp. 26-30
Author(s):  
Su Yuan Wu ◽  
Hong Zheng ◽  
Peter G. Weidler ◽  
Peng Cai
Keyword(s):  
Aqueous Solutions ◽  
Langmuir Isotherm ◽  
Contact Time ◽  
Room Temperature ◽  
Ph Value ◽  
Freundlich Isotherm ◽  
Single System ◽  
Batch System ◽  
Maximum Sorption ◽  
Sorption Characteristics

Co-sorption characteristics of Zn(II) and As(V) on the mixed Fe/Al-PILCs was investigated in a batch system at room temperature. The effects of relevant parameters, such as pH value of solution, adsorbent dosage, initial Zn(II) and As(V) concentrations and contact time were examined, respectively. The results show that co-sorption capacities and co-sorption rates of Zn(II) and As(V) by Fe/Al-PILC are higher and faster than those of single Zn(II) or single As(V) by Fe/Al-PILC. Co-sorption isotherm data of Zn(II) and As(V) by Fe-Al-PILC were fitted well to Langmuir isotherm and the maximum sorption capacities of Zn(II) and As(V) on mixed Fe-Al-PILCs (Q0) are 16.98 mg/g and 16.29 mg/g, respectively, which are higher than those in single system. n>1 from Freundlich isotherm indicate that the sorption of Zn(II) and As(V) by Fe-Al-PILC is favorable. E values from D-R model indicate that the type of sorption of Zn(II) and As(V) by Fe-Al-PILC is physical. The results indicate that there is significant potential for Fe/Al-PILCs as an adsorbent material for Zn(II) and As(V) removal from aqueous solutions.

Sorption characteristics and separation of tellurium ions from aqueous solutions using nano-TiO2

Talanta ◽  
2010 ◽  
Vol 83 (2) ◽  
pp. 344-350 ◽  
Author(s):  
Lei Zhang ◽  
Min Zhang ◽  
Xingjia Guo ◽  
Xueyan Liu ◽  
Pingli Kang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Nano Tio2 ◽  
Sorption Characteristics

Ultrathin frozen sections of yeast without aldehyde prefixation

1978 ◽  
Vol 36 (2) ◽  
pp. 58-59
Author(s):  
K. J. Böhm ◽  
a. E. Unger
Keyword(s):  
Aqueous Solutions ◽  
Biological Material ◽  
Yeast Cells ◽  
Frozen Sections ◽  
Good Preservation ◽  
Ultrathin Frozen Sections

During the last years it was shown that also by means of cryo-ultra-microtomy a good preservation of substructural details of biological material was possible. However the specimen generally was prefixed in these cases with aldehydes.Preparing ultrathin frozen sections of chemically non-prefixed material commonly was linked up to considerable technical and manual expense and the results were not always satisfying. Furthermore, it seems to be impossible to carry out cytochemical investigations by means of treating sections of unfixed biological material with aqueous solutions.We therefore tried to overcome these difficulties by preparing yeast cells (S. cerevisiae) in the following manner:

Imaging polymers, proteins and dna in aqueous solutions with the atomic force microscope

1989 ◽  
Vol 47 ◽  
pp. 32-33
Author(s):  
S.A.C. Gould ◽  
B. Drake ◽  
C.B. Prater ◽  
A.L. Weisenhorn ◽  
S.M. Lindsay ◽  
...  
Keyword(s):  
Amino Acids ◽  
Dna Sequencing ◽  
Aqueous Solutions ◽  
Atomic Force Microscope ◽  
Piezoelectric Crystal ◽  
Atomic Force ◽  
Structure Of Molecules ◽  
Optical Lever

The atomic force microscope (AFM) is an instrument that can be used to image many samples of interest in biology and medicine. Images of polymerized amino acids, polyalanine and polyphenylalanine demonstrate the potential of the AFM for revealing the structure of molecules. Images of the protein fibrinogen which agree with TEM images demonstrate that the AFM can provide topographical data on larger molecules. Finally, images of DNA suggest the AFM may soon provide an easier and faster technique for DNA sequencing.The AFM consists of a microfabricated SiO2 triangular shaped cantilever with a diamond tip affixed at the elbow to act as a probe. The sample is mounted on a electronically driven piezoelectric crystal. It is then placed in contact with the tip and scanned. The topography of the surface causes minute deflections in the 100 μm long cantilever which are detected using an optical lever.

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