scholarly journals Sodium Alginate Decorated Carbon Nanotubes-Graphene Composite Aerogel for Heavy Metal Ions Detection

2015 ◽  
Vol 83 (2) ◽  
pp. 84-90 ◽  
Author(s):  
Dafu WANG ◽  
Feifei ZHANG ◽  
Jie TANG
Keyword(s):  
Carbon Nanotubes ◽  
Heavy Metal ◽  
Metal Ions ◽  
Sodium Alginate ◽  
Heavy Metal Ions ◽  
Composite Aerogel ◽  
Graphene Composite ◽  
Metal Ions Detection

Chitosan/PAA based fiber-optic interferometric sensor for heavy metal ions detection

2016 ◽  
Vol 233 ◽  
pp. 31-38 ◽  
Author(s):  
R. Raghunandhan ◽  
L.H. Chen ◽  
H.Y. Long ◽  
L.L. Leam ◽  
P.L. So ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Fiber Optic ◽  
Interferometric Sensor ◽  
Metal Ions Detection

Competitive adsorption of heavy metal ions on carbon nanotubes and the desorption in simulated biofluids

2015 ◽  
Vol 448 ◽  
pp. 347-355 ◽  
Author(s):  
Xin Ma ◽  
Sheng-Tao Yang ◽  
Huan Tang ◽  
Yuanfang Liu ◽  
Haifang Wang
Keyword(s):  
Carbon Nanotubes ◽  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Competitive Adsorption

The adsorption of divalent heavy metal ions on (8,0) carbon nanotubes: The first-principles study

2020 ◽  
Vol 34 (32) ◽  
pp. 2050368
Author(s):  
Z. Zhu ◽  
L. An ◽  
T. Chen ◽  
X. Jia
Keyword(s):  
Carbon Nanotubes ◽  
Heavy Metal ◽  
Metal Ions ◽  
First Principles ◽  
Industrial Wastewater ◽  
Heavy Metal Ions ◽  
Density Functional ◽  
Physical Adsorption ◽  
Functional Theory ◽  
Sensing Material

In order to explore new ways to detect and remove heavy metal ions from industrial wastewater, the first-principles method based on density functional theory has been used to investigate the performance of carbon nanotubes (CNTs) in adsorbing divalent heavy metal ions which include Zn[Formula: see text], Cu[Formula: see text], Pb[Formula: see text] and Sn[Formula: see text]. Results show that the adsorption of Zn[Formula: see text] on CNTs is weak and only physical adsorption forms between them. However, for Cu[Formula: see text], Pb[Formula: see text] and Sn[Formula: see text], the final adsorption distance with CNTs is greatly decreased, and the adsorption energy and charge transfer amount with CNTs are significantly increased. In addition, the charge density of Cu[Formula: see text], Pb[Formula: see text] and Sn[Formula: see text] overlaps effectively with that of CNTs. These indicate the formation of strong chemisorption between these ions and CNTs. Therefore, CNTs could be used as a sensing material to detect and remove Cu[Formula: see text], Pb[Formula: see text] and Sn[Formula: see text] from wastewater. The research provides theoretical guidance for the application of CNTs in heavy metal ions treatment.

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