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

Biomimetic snowflake-shaped magnetic micro-/nanostructures for highly efficient adsorption of heavy metal ions and organic pollutants from aqueous solution

2014 ◽  
Vol 2 (30) ◽  
pp. 11759-11767 ◽  
Author(s):  
Xiaoman Zhang ◽  
Jinyun Liu ◽  
Sean Joseph Kelly ◽  
Xingjiu Huang ◽  
Jinhuai Liu
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Organic Pollutants ◽  
Heavy Metal Ions ◽  
Nano Structure ◽  
Highly Efficient ◽  
Efficient Adsorbent

A novel snowflake-shaped micro-/nano-structure was reported as a highly efficient adsorbent for removing pollutants from aqueous solution.

scholarly journals Novel nanoscale Yb-MOF used as highly efficient electrode for simultaneous detection of heavy metal ions

2021 ◽  
Vol 56 (13) ◽  
pp. 8172-8185
Author(s):  
Manh B. Nguyen ◽  
Dau Thi Ngoc Nga ◽  
Vu Thi Thu ◽  
Benoît Piro ◽  
Thuan Nguyen Pham Truong ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Highly Efficient

Rice husk based nanocellulose scaffolds for highly efficient removal of heavy metal ions from contaminated water

2020 ◽  
Vol 6 (11) ◽  
pp. 3080-3090
Author(s):  
Chengbo Zhan ◽  
Priyanka R. Sharma ◽  
Hongrui He ◽  
Sunil K. Sharma ◽  
Alexis McCauley-Pearl ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Rice Husk ◽  
Heavy Metal Ions ◽  
Contaminated Water ◽  
Rice Husks ◽  
Efficient Removal ◽  
Highly Efficient

Nanocellulose scaffolds derived from rice husks could efficiently remove heavy metal ions from contaminated water.

scholarly journals Removal of heavy metal ions from wastewater by capacitive deionization using polypyrrole/chitosan composite electrode

2019 ◽  
Vol 37 (3-4) ◽  
pp. 205-216 ◽  
Author(s):  
Yujie Zhang ◽  
Quanqin Xue ◽  
Fei Li ◽  
Jizhe Dai
Keyword(s):  
Heavy Metal ◽  
Composite Material ◽  
Metal Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Composite Electrode ◽  
Capacitive Deionization ◽  
Metal Ion Adsorption ◽  
Adsorption Desorption ◽  
Chitosan Composite

A polypyrrole/chitosan composite material was obtained by chemical polymerization. The adsorption performance of a hot-molded polypyrrole/chitosan composite electrode was tested by adsorption/desorption experiments. Scanning electron microscopy and Fourier-transform infrared spectroscopy both showed the deposition of polypyrrole on the chitosan surface. The specific capacitance of the polypyrrole/chitosan composite was determined by cyclic voltammetry in 1.0 M KCl at 0.01 V/s as 102.96 F/g. The adsorption/desorption experiments indicated that the specific adsorption capacity of the composite for Cu2+ was 99.67 mg/g, while the removal performance for other metal ions, such as Ag+, Pb2+, and Cd2+, was good. The results of multicycle adsorption/desorption tests showed that the adsorption rate of the polypyrrole/chitosan composite electrode for Cu2+ was decreased from 56.4 to 51.4% over 10 cycles, demonstrating the stable metal-ion adsorption/desorption behavior of the composite electrode. The obtained performances show that the prepared polypyrrole/chitosan composite material is an ideal electrode material for the removal of heavy metal ions.

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.

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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