scholarly journals Application of the FT-IR/PAS and DRS Methods for Studying Heavy Metal Ions Sorption οn the Inorganic Sorbents

2009 ◽  
Vol 116 (3) ◽  
pp. 407-409 ◽  
Author(s):  
P. Rusek ◽  
Z. Hubicki ◽  
G. Wójcik ◽  
A. Debczak
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Ft Ir

Separation of Heavy Metal Ions from Petroleum Ash Liquor Using Organic Resins and FT-IR Study of the Process

2020 ◽  
Vol 62 (2) ◽  
pp. 243-250
Author(s):  
A. M. Abd El-Hamid ◽  
M. A. Zahran ◽  
Y. M. Z. Ahmed ◽  
S. M. El-Sheikh
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Ft Ir ◽  
Ir Study

scholarly journals Facile fabrication of bimetallic Fe–Mg MOF for the synthesis of xanthenes and removal of heavy metal ions

RSC Advances ◽  
2020 ◽  
Vol 10 (16) ◽  
pp. 9693-9703 ◽  
Author(s):  
W. S. Abo El-Yazeed ◽  
Y. G. Abou El-Reash ◽  
L. A. Elatwy ◽  
Awad I. Ahmed
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Solvothermal Technique ◽  
Facile Fabrication ◽  
Ft Ir

This work reported the preparation of Mg-MOF, Fe-MOF and Fe–Mg MOF by a solvothermal technique and their characterization with FT-IR, XRD, SEM, EDS, TEM and SBET analyses.

Synthesis of graphene oxide/ polyvinyl alcohol (GO/PVA) composite film as an adsorbent

2021 ◽  
Vol 10 (3) ◽  
pp. xx-xx
Author(s):  
Thu Le Dieu ◽  
Hoang Tran Vinh
Keyword(s):  
Waste Water ◽  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Composite Film ◽  
Heavy Metal Ions ◽  
Precipitation Method ◽  
Initial Concentration ◽  
Ft Ir ◽  
Co Precipitation

In this study, heavy metal ions or organic in the aqueous solution are removed by adsorbent without filtration or centrifugation as well as incorporate magnetic materials into the adsorbent. A composite film GO/PVA from PVA and self – synthesized GO by co - precipitation method has synthesized successfully. This composite was characterized by XRD, SEM, FT-IR to evaluate the properties of this material. The results showed that there was an interaction between GO and PVA so we have tested the adsorption capacity of this composite with Co(II) ions and the obtained efficiency of this process was 99.5% with the initial concentration of solution is 20 mg.L-1. This film is completely capable of removing heavy metal ions from waste water.

Functionalized magnetic Fe3O4 nanoparticles for removal of heavy metal ions from aqueous solutions

e-Polymers ◽  
2016 ◽  
Vol 16 (4) ◽  
pp. 313-322 ◽  
Author(s):  
Dun Chen ◽  
Tunsagnl Awut ◽  
Bin Liu ◽  
Yali Ma ◽  
Tao Wang ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Heavy Metal ◽  
Metal Ions ◽  
Removal Efficiency ◽  
Heavy Metal Ions ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Magnetic Adsorbents ◽  
Ft Ir ◽  
Magnetic Fe3o4 Nanoparticles

AbstractFe3O4 nanoparticles (MNP) were coated with 3-aminopropyltriethoxy-silane (APTES), resulting in anchoring of primary amine groups on the surface of the particles, then four kinds of novel magnetic adsorbents (Fe3O4@SiO2-NH-HCGs) were formed by grafting of different heterocyclic groups (HCG) on amino groups via substitution reaction. These Fe3O4@SiO2-NH-HCGs were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and energy disperse spectroscopy (EDS). The results confirmed the formation of Fe3O4@SiO2-NH-HCGs nanoparticles and the Fe3O4 core possessed superparamagnetism. Batch experiments were performed to evaluate adsorption conditions of Cu2+, Hg2+, Pb2+ and Cd2+. Under normal temperature and neutral condition, just 20 min, the removal efficiency of any Fe3O4@SiO2-NH-HCGs is more than 96%. In addition, these Fe3O4@SiO2-NH-HCGs have good stability and reusability. Their removal efficiency has no obvious decrease after being used seven times. After the experiments were finished, Fe3O4@SiO2-NH-HCGs were conveniently separated via an external magnetic field due to superparamagnetism. These results indicate that these Fe3O4@SiO2-NH-HCGs are potentially attractive materials for the removal of heavy metal ions from industrial wastewater.

Synthesis of Ethylenediaminetetraacetic Acid-Functionalized Chitosan Cryogels as Potential Sorbents of Heavy Metal Ions

2021 ◽  
Vol 58 (2) ◽  
pp. 155-166
Author(s):  
Maria Marinela Lazar ◽  
Ionel Adrian Dinu ◽  
Maria Valentina Dinu
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Ethylenediaminetetraacetic Acid ◽  
Tubular Structures ◽  
Retention Capacity ◽  
Ft Ir ◽  
Spectroscopy Optical ◽  
Porosity Measurements ◽  
Ft Ir Spectroscopy

An original functionalization strategy is proposed here to design chitosan (CS)-based cryogels with ethylenediaminetetraacetic acid (EDTA) moieties. Cryogels with aligned micro-sized tubular structures were further engineered through an unidirectional freezing approach. Attachment of EDTA groups onto CS chains was proved by 1H-RMN and FT-IR spectroscopy. The formation of EDTA-functionalized 3D porous CS-based cryogels was demonstrated by several methods of characterization (FTIR spectroscopy, optical microscopy, SEM, porosity measurements, swelling behavior, copper (II) retention capacity). The sorption tests pointed out the high potential of EDTA-functionalized CS-based cryogels for heavy metal ions retention.

scholarly journals Preparation of Sodium Lignosulfonate/Chitosan Adsorbent and Application of Pb2+ Treatment in Water

2021 ◽  
Vol 13 (5) ◽  
pp. 2997
Author(s):  
Jie Pan ◽  
Jiangwei Zhu ◽  
Fulong Cheng
Keyword(s):  
Water Pollution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Orthogonal Experiment ◽  
Sodium Lignosulfonate ◽  
Adsorption Mode ◽  
Ft Ir ◽  
Growth Of Animals ◽  
Efficient Adsorbent

Industrial wastewater has brought huge disasters to water resources and soil and has seriously affected the growth of animals and plants. There is an urgent need for a green and efficient adsorbent to solve the problem of water pollution. Sodium lignosulfonate and chitosan undergo free radical polymerization to form a lignin/chitosan adsorbent, which is used to treat Pb2+ in water pollution. An orthogonal experiment was used to optimize the content of sodium lignosulfonate, chitosan, cross-linking agent and initiator to obtain the adsorbent with the best adsorption performance. The adsorbents were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermal analysis and zeta potentiometry. The influence of different conditions on the adsorption of heavy metal ions by lignosulfonate/chitosan adsorbent was explored, and a kinetic and isotherm model was established. The results showed that the adsorption capacity of Pb2+ was 345 mg g−1 when the adsorbent was 0.01 g, the concentration of heavy metal ions was 100 mg L−1 and pH was 7. The adsorption process of lignosulfonate/chitosan is a kind of spontaneous adsorption mode, which is mainly composed of electrostatic adsorption and chemical adsorption.

The Synthesis and Characterization of the Graphene Oxide-Polyamine Composites Using for the Recovery of Heavy Metal Ions

2012 ◽  
Vol 518-523 ◽  
pp. 2935-2938 ◽  
Author(s):  
Guo Zhen Wang ◽  
Tao Chen ◽  
Jie Gao ◽  
Jing Yin ◽  
Rui Ma ◽  
...  
Keyword(s):  
Waste Water ◽  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Chemical Structure ◽  
Cadmium Ions ◽  
Ft Ir

Graphene oxide–polyamine composites have been synthesized which have metal ion capacities as high as 97.94% for cadmium ions removed from aqueous solutions. The chemical structure of obtained graphene oxide–polyamine composites was confirmed by FT-IR, XRD and SEM. The results revealed that these composites can effectively extract heavy metal ions from waste water. Using these composites the concentration of heavy metal ions is reduced to below allowable discharge limits and the recovery of heavy metal ions from waste water was realized.

Preparation and adsorption properties of dialdehyde 8-aminoquinoline starch

2013 ◽  
Vol 67 (2) ◽  
pp. 306-310 ◽  
Author(s):  
Wen Ding ◽  
Shen-yong Zhai ◽  
Jun-tao liu ◽  
Rou Wang ◽  
Rong Li
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Industrial Waste ◽  
Heavy Metal Ions ◽  
Adsorption Properties ◽  
X Ray Diffraction ◽  
Dialdehyde Starch ◽  
X Ray ◽  
Ft Ir

Dialdehyde 8-aminoquinoline starch (DASQA) was synthesized by the reaction of dialdehyde starch (DAS) and 8-aminoquinoline and was used to adsorb various ions from aqueous solution. DASQA was characterized by Fourier transform infrared (FT-IR) spectra, thermogravimetric analysis, X-ray diffraction analysis. The adsorption properties of the polymer for Pb2+, Cu2+, Cd2+, Ni2+, and Zn2+ were investigated. The result of the experiment reveals that the adsorption for Cd2+ and Zn2+were approximately 2.51 mmol/g, 2.17 mmol/g, followed by Pb2+ 1.93 mmol/g, Ni2+ 1.66 mmol/g, Cu2+ 1.19 mmol/g. Furthermore, the kinetic experiments indicated that the adsorption of DASQA for the above metal ions achieved equilibrium within 2 h. Therefore, DASQA is an effective adsorbent for the removal of different heavy metal ions from industrial waste solutions.

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