Chelating fibers prepared with a wet spinning technique using a mixture of a viscose solution and a polymer ligand for the separation of metal ions in an aqueous solution

2012 ◽  
Vol 203-204 ◽  
pp. 370-373 ◽  
Author(s):  
Shigehiro Kagaya ◽  
Hiroyuki Miyazaki ◽  
Yoshinori Inoue ◽  
Toshifumi Kato ◽  
Hideyuki Yanai ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Wet Spinning ◽  
Separation Of Metal Ions ◽  
Viscose Solution ◽  
Polymer Ligand

scholarly journals Evaluation of N-Alkyl-bis-o-aminobenzamide Receptors for the Determination and Separation of Metal Ions by Fluorescence, UV-Visible Spectrometry and Zeta Potential

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1737 ◽  
Author(s):  
Marisela Martinez-Quiroz ◽  
Xiomara E. Aguilar-Martinez ◽  
Mercedes T. Oropeza-Guzman ◽  
Ricardo Valdez ◽  
Eduardo A. Lopez-Maldonado
Keyword(s):  
Aqueous Solution ◽  
Zeta Potential ◽  
Metal Ions ◽  
Environmental Concern ◽  
Separation Of Metal Ions ◽  
Complexing Capacity ◽  
Alkyl Groups ◽  
Molecular Fluorescence ◽  
Uv Visible ◽  
Phase Sensor

This paper presents the synthesis and evaluation of physicochemical behavior of a new series of N-alkyl-bis-o-aminobenzamides (BOABs) in aqueous solution. The study was targeted to the complexing capacity of five metal ions (Fe2+, Cu2+, Cd2+, Hg2+ and Pb2+) of environmental concern as the medullar principle of a liquid phase sensor for its application in the determination of these metal ions due to its versatility of use. Molecular fluorescence, UV-visible and Zeta potential were measured for five BOABs and the effect of alkyl groups with different central chain length (n = 3, 4, 6, 8 and 10) on physicochemical performance determined. The results have shown that these derivatives present higher sensibility and selectivity for Cu2+ even in the presence of the other metal ions. An additional application test was done adding a pectin (0.1 wt %) solution to the BOAB-Cu+2 complex to obtain a precipitate (flocs) as a potential selective separation process of Cu from aqueous solution. The solid was then lyophilized and analyzed by SEM-EDS, the images showed spheric forms containing Cu+2 with diameter of approximately of 8 μm and 30 wt %.

On the selective separation of metal ions from hydrochloride aqueous solution by pertraction through supported ionic liquid membranes

2013 ◽  
Vol 444 ◽  
pp. 469-481 ◽  
Author(s):  
A.P. de los Ríos ◽  
F.J. Hernández-Fernández ◽  
L.J. Lozano ◽  
S. Sánchez-Segado ◽  
A. Ginestá-Anzola ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Ionic Liquid ◽  
Metal Ions ◽  
Selective Separation ◽  
Liquid Membranes ◽  
Separation Of Metal Ions ◽  
Supported Ionic Liquid ◽  
Supported Ionic Liquid Membranes

scholarly journals Adsorptive Separation of Metal Ions with Surface Modified Desmostachya bipinnata

2013 ◽  
Vol 13 (1) ◽  
pp. 101-106 ◽  
Author(s):  
Jagjit Kour ◽  
Puspa Lal Homagai ◽  
Megh Raj Pokhrel ◽  
Kedar Nath Ghimire
Keyword(s):  
Aqueous Solution ◽  
Kinetic Model ◽  
Metal Ions ◽  
Order Kinetic ◽  
Sem Images ◽  
Separation Of Metal Ions ◽  
Adsorptive Separation ◽  
Order Kinetic Model ◽  
Removal Of Metal Ions ◽  
Surface Modified

The biomass of Desmostachy bipannata (Kush, a religious plant of Hindus) was modified for the better adsorption of metal ions from aqueous solution. The FTIR and SEM images were used for the characterization of biomass. The adsorptive separation of metal ions from aqueous solution was studied with equilibrium isotherm and kinetic model. Langmuir adsorption isotherm and pseudo second order kinetic model showed better explanation for the adsorption process. The experimental results suggest that biomass from Kush can be used as an effective biosorbent for the removal of metal ions from aqueous solution. Nepal Journal of Science and Technology Vol. 13, No. 1 (2012) 101-106 DOI: http://dx.doi.org/10.3126/njst.v13i1.7448

A novel supramolecular AIE π-gel for fluorescence detection and separation of metal ions from aqueous solution

Soft Matter ◽  
2019 ◽  
Vol 15 (32) ◽  
pp. 6530-6535 ◽  
Author(s):  
Tai-Bao Wei ◽  
Qin-Peng Zhang ◽  
Yan-Qing Fan ◽  
Peng-Peng Mao ◽  
Jiao Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonding ◽  
Metal Ions ◽  
Fluorescence Detection ◽  
Hydrogen Bonding Interaction ◽  
Stacking Interaction ◽  
Separation Of Metal Ions ◽  
Bonding Interaction ◽  
Π Stacking Interaction ◽  
Detection And Separation

A novel supramolecular AIE π-gel (ONT) is constructed using a π–π stacking interaction and hydrogen bonding interaction, which could efficiently detect and separate metal ions.

REMOVAL OF HEAVY METAL Cr (II), Ni (II), Cu (II), Zn (II), Cd (II), Pb (II) IONS FROM AQUEOUS SOLUTION BY MENTHA PIPERITA EXTRACT

2020 ◽  
pp. 15-20
Author(s):  
Ersin Yucel ◽  
Mine Yucel
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
High Efficiency ◽  
Correlation Coefficients ◽  
Langmuir Model ◽  
Mentha Piperita ◽  
Freundlich Model ◽  
Biosorption Capacity ◽  
Peppermint Extract ◽  
The Stability

In this study, the usage of the peppermint (Mentha piperita) for extracting the metal ions [Mg (II), Cr (II), Ni (II), Cu (II), Zn (II), Cd (II), Pb (II)] that exist at water was investigated. In order to analyze the stability properties, Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms were used at removing the metal ions and the highest correlation coefficients (R2) were obtained at Langmuir isotherm. Therefore, it is seen that the Langmuir model is more proper than the Freundlich model. However, it was found that the correlation coefficients of removing Ni and Cd is higher at Freundlich model than Langmuir and low at Dubinin-Radushkevich isotherm. It is established that the biosorption amount increase depends on the increase of biosorbent and it can be achieved high efficiency (95%) even with small amount (0.6 mg, peppermint extract) at lead ions. It is also determined that the peppermint extracted that is used at this study shows high biosorption capacity for metal ions and can be used for immobilization of metals from polluted areas.

Comparative Bio-sorption of Cadmium and Nickel Ions from Aqueous Solution onto Fibers of Date Palm using Fluidized Bed Column

2019 ◽  
Vol 70 (5) ◽  
pp. 1507-1512
Author(s):  
Baker M. Abod ◽  
Ramy Mohamed Jebir Al-Alawy ◽  
Firas Hashim Kamar ◽  
Gheorghe Nechifor
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Fluidized Bed ◽  
Removal Efficiency ◽  
Heavy Metal Ions ◽  
Date Palm ◽  
Operating Conditions ◽  
Initial Concentration ◽  
Bed Height

The aim of this study is to use the dry fibers of date palm as low-cost biosorbent for the removal of Cd(II), and Ni(II) ions from aqueous solution by fluidized bed column. The effects of many operating conditions such as superficial velocity, static bed height, and initial concentration on the removal efficiency of metal ions were investigated. FTIR analyses clarified that hydroxyl, amine and carboxyl groups could be very effective for bio-sorption of these heavy metal ions. SEM images showed that dry fibers of date palm have a high porosity and that metal ions can be trapped and sorbed into pores. The results show that a bed height of 6 cm, velocity of 1.1Umf and initial concentration for each heavy metal ions of 50 mg/L are most feasible and give high removal efficiency. The fluidized bed reactor was modeled using ideal plug flow and this model was solved numerically by utilizing the MATLAB software for fitting the measured breakthrough results. The breakthrough curves for metal ions gave the order of bio-sorption capacity as follow: Cd(II)]Ni(II).

Sign in / Sign up

Export Citation Format

Share Document