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.

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

Triethylenetetramine modified multiwalled carbon nanotubes for the efficient preconcentration of Pb(ii), Cu(ii), Ni(ii) and Cd(ii) before FAAS detection

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 106905-106911 ◽  
Author(s):  
Zeid A. ALOthman ◽  
Erkan Yilmaz ◽  
Mohamed A. Habila ◽  
Ibrahim H. Alsohaimi ◽  
Abdullah M. Aldawsari ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Heavy Metal ◽  
Solid Phase Extraction ◽  
Metal Ions ◽  
Multiwalled Carbon Nanotubes ◽  
Heavy Metal Ions ◽  
Solid Phase ◽  
Phase Extraction ◽  
Multiwalled Carbon ◽  
Efficient Adsorbent

Triethylenetetramine modified multiwalled carbon nanotubes (TETA-MWCNTs) were prepared and used as an efficient adsorbent for the solid phase extraction of heavy metal ions.

Effective adsorption of heavy metal ions by sodium lignosulfonate reformed montmorillonite

2019 ◽  
Vol 138 ◽  
pp. 188-197 ◽  
Author(s):  
Jianzhe Ma ◽  
Muhammad Asim Khan ◽  
Mingzhu Xia ◽  
Chenlu Fu ◽  
Sidi Zhu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Sodium Lignosulfonate

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.

The removal of heavy metal ions from wastewater/aqueous solution using polypyrrole-based adsorbents: a review

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 14778-14791 ◽  
Author(s):  
Habibun Nabi Muhammad Ekramul Mahmud ◽  
A. K. Obidul Huq ◽  
Rosiyah binti Yahya
Keyword(s):  
Water Pollution ◽  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Day By Day

Water pollution caused by heavy metal ions is becoming a serious threat to human and aquatic lives day by day.

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.

A biomimetic SiO2@chitosan composite as highly-efficient adsorbent for removing heavy metal ions in drinking water

Chemosphere ◽  
2019 ◽  
Vol 214 ◽  
pp. 738-742 ◽  
Author(s):  
Jinyun Liu ◽  
Yu Chen ◽  
Tianli Han ◽  
Mengying Cheng ◽  
Wen Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Highly Efficient ◽  
Chitosan Composite ◽  
Efficient Adsorbent

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.

scholarly journals Anisotropic Nanocellulose Aerogel Loaded with Modified UiO-66 as Efficient Adsorbent for Heavy Metal Ions Removal

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1114
Author(s):  
Jiajia Li ◽  
Sicong Tan ◽  
Zhaoyang Xu
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Drying Method ◽  
Metal Organic ◽  
Heavy Metal Ions Removal ◽  
Efficient Adsorbent

Currently, the preparation of outstanding adsorbents has attracted public concern in environmentally friendly and sustainable pollutant redress. Herein, we report a directional freeze-drying method to prepare a strong and reusable adsorbent by introducing metal-organic framework which modified by ethylene diamine tetraacetic acid (named UiO-66-EDTA) into cellulose nanofiber (CNF) aerogel. Compared to traditional aerogels, the fabricated adsorbent showed a good flexibility and reusability by forming a homogeneous three-dimensional structure. By controlling the concentration of a crosslinkable carboxymethyl cellulose (CMC) solution, we produced aerogels with different pore structures and fibrillar, columnar, and lamellar morphologies. The obtained UiO-66-EDTA/CNF/CMC aerogel (U-EDTACCA) showed an excellent adsorption performance for a total of nine types of heavy metal ions, as the removal efficiency could reach 91%. Moreover, the aerogels could retain 88% of their original shape after five cycles. The aerogel may be an appropriate material for the adsorption of heavy metal ions.

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