Corrigendum to “Effect of Carboxylic Functional Group Functionalized on Carbon Nanotubes Surface on the Removal of Lead from Water”

The adsorption mechanism of the removal of lead from water by using carboxylic functional group (COOH) functionalized on the surface of carbon nanotubes was investigated. Four independent variables including pH, CNTs dosage, contact time, and agitation speed were carried out to determine the influence of these parameters on the adsorption capacity of the lead from water. The morphology of the synthesized multiwall carbon nanotubes (MWCNTs) was characterized by using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) in order to measure the diameter and the length of the CNTs. The diameters of the carbon nanotubes were varied from 20 to 40 nm with average diameter at 24 nm and 10 micrometer in length. Results of the study showed that 100% of lead was removed by using COOH-MCNTs at pH 7, 150 rpm, and 2 hours. These high removal efficiencies were likely attributed to the strong affinity of lead to the physical and chemical properties of the CNTs. The adsorption isotherms plots were well fitted with experimental data.

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WITHDRAWN: Qualitative and quantitative study of carboxylic functional group creating on the surface of multiwall carbon nanotubes through mild oxidation process

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2013.10.043 ◽

2013 ◽

Author(s):

Omid Moradi ◽

Hassan Khani ◽

Karim Zare

Keyword(s):

Carbon Nanotubes ◽

Quantitative Study ◽

Functional Group ◽

Oxidation Process ◽

Multiwall Carbon Nanotubes ◽

Mild Oxidation ◽

Qualitative And Quantitative ◽

Qualitative And Quantitative Study ◽

Multiwall Carbon ◽

Carboxylic Functional Group

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Effect of Functionalized Carbon Nanotubes with Carboxylic Functional Group on the Mechanical and Thermal Properties of Styrene Butadiene Rubber

Fullerenes Nanotubes and Carbon Nanostructures ◽

10.1080/1536383x.2010.504953 ◽

2011 ◽

Vol 19 (7) ◽

pp. 617-627 ◽

Cited By ~ 17

Author(s):

Muataz Ali Atieh

Keyword(s):

Carbon Nanotubes ◽

Thermal Properties ◽

Functional Group ◽

Styrene Butadiene Rubber ◽

Mechanical And Thermal Properties ◽

Butadiene Rubber ◽

Functionalized Carbon Nanotubes ◽

Styrene Butadiene ◽

Carboxylic Functional Group

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5-((8-Hydroxyquinolin-5-yl)diazenyl)-3-methyl-1H-pyrazole-4-carboxylic Acid

Molbank ◽

10.3390/m1238 ◽

2021 ◽

Vol 2021 (2) ◽

pp. M1238

Author(s):

Ion Burcă ◽

Valentin Badea ◽

Calin Deleanu ◽

Vasile-Nicolae Bercean

Keyword(s):

Chemical Structure ◽

Functional Group ◽

Coupling Reaction ◽

2D Nmr ◽

Azo Coupling ◽

2D Nmr Spectroscopy ◽

Azo Compound ◽

Ft Ir ◽

New Compounds ◽

Carboxylic Functional Group

A new azo compound was prepared via the azo coupling reaction between 4-(ethoxycarbonyl)-3-methyl-1H-pyrazole-5-diazonium chloride and 8-hydroxyquinoline (oxine). The ester functional group of the obtained compound was hydrolyzed and thus a new chemical structure with a carboxylic functional group resulted. The structures of the new compounds were fully characterized by: UV–Vis, FT-IR, 1D and 2D NMR spectroscopy, and HRMS spectrometry.

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Effect of Functionalized Carbon Nanotubes in the Detection of Benzene at Room Temperature

Journal of Nanotechnology ◽

10.1155/2018/2107898 ◽

2018 ◽

Vol 2018 ◽

pp. 1-7 ◽

Cited By ~ 3

Author(s):

Nurjahirah Janudin ◽

Norli Abdullah ◽

Wan Md Zin Wan Yunus ◽

Faizah Md Yasin ◽

Mohd Hanif Yaacob ◽

...

Keyword(s):

Carbon Nanotubes ◽

Acid Treatment ◽

Room Temperature ◽

Functional Group ◽

Group Performance ◽

Active Area ◽

Functionalized Carbon Nanotubes ◽

Sensing Material

In this paper, carbon nanotubes (CNTs) were functionalized by acid treatment and further functionalized with dodecylamine and were designated as CNT-carboxylic and CNT-amide, respectively. Then, functionalized CNTs produced were characterized with various methods to verify the attachment of a functional group. Performance of the functionalized CNTs in the detection of benzene gas was monitored at room temperature. The sample was dropped cast on the interdigitated transducer (IDT), and the changes in resistivity were recorded by a digital multimeter in a customized chamber under controlled humidity (∼55%) environment. Based on the findings, it showed that the functionalized CNTs provide an extra active area for interaction between the gas analyte and CNTs, thus increasing their response and improving the sensitivity of the sensing material.

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Sensor Activity of Carbon Nanotubes with a Boundary Functional Group

Nanoscience and Nanotechnology Letters ◽

10.1166/nnl.2013.1704 ◽

2013 ◽

Vol 5 (11) ◽

pp. 1169-1173 ◽

Cited By ~ 9

Author(s):

I. V. Zaporotskova ◽

N. P. Polikarpova ◽

D. E. Vil'keeva

Keyword(s):

Carbon Nanotubes ◽

Functional Group

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Mechanical Properties of Functionalized Carbon Nanotube as Reinforcements

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.583.22 ◽

2012 ◽

Vol 583 ◽

pp. 22-26 ◽

Cited By ~ 2

Author(s):

Cui Cui Ling ◽

Qing Zhong Xue ◽

Xiao Yan Zhou

Keyword(s):

Mechanical Properties ◽

Carbon Nanotubes ◽

Molecular Dynamics ◽

Carbon Nanotube ◽

Binding Energy ◽

Functional Groups ◽

Functional Group ◽

Young Modulus ◽

Electrostatic Energy ◽

Walled Cnts

The effects of functional groups and degree of functionalization on the young modulus of carbon nanotubes (CNTs) are investigated through molecular dynamics and molecular mechanics simulations. It is found that young’s modulus depends greatly on the functional groups and degree of functionalization. The results show that the fluorine (-F) can replace the hydrogen, and young modulus of sing-walled CNTs (SWNT) modified by -F functional group can inherit the mechanical properties of intrinsic SWNT. The binding energy between functional groups and SWNT, and electrostatic energy among the functional groups are mainly responsible for these findings. These characteristics rival those of SWNT modified by hydrogen allow one to consider SWNT modified by -F functional group for a range of technologies, in particular require better inertness and stability than unachievable for the compound.

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Effect of Functionalize Carbon Nanotubes with Amine Functional Group on the Mechanical and Thermal Properties of Styrene Butadiene Rubber

Journal of Thermoplastic Composite Materials ◽

10.1177/0892705710397456 ◽

2011 ◽

Vol 24 (5) ◽

pp. 613-624 ◽

Cited By ~ 23

Author(s):

M. A. Atieh

Keyword(s):

Carbon Nanotubes ◽

Thermal Properties ◽

Functional Group ◽

Styrene Butadiene Rubber ◽

Mechanical And Thermal Properties ◽

Butadiene Rubber ◽

Amine Functional Group ◽

Styrene Butadiene

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Electrical Resistivity of Pristine and Functional Single-Wall Carbon Nanotubes

Journal of Nanomaterials ◽

10.1155/2013/635673 ◽

2013 ◽

Vol 2013 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Yijiang Lu ◽

Jing Li ◽

Haiping Hong

Keyword(s):

Carbon Nanotubes ◽

Electrical Resistivity ◽

Electric Field ◽

Polymer Nanocomposites ◽

Functional Group ◽

Single Wall Carbon Nanotubes ◽

Electrical Field ◽

Interdigitated Electrode ◽

Single Wall Carbon ◽

Lower Resistivity

The resistance of several pristine and functional single-wall carbon nanotubes (SWNTs) deposited and dried on interdigitated electrode (IDE) chips was investigated to better understand how functional groups influence their resistivity. Without the external electrical field, the resistance was generally increased for the sulfonated and fluorinated SWNTs but not for COOH-SWNTs. With a 3 V electric field applied during depositing, while no change in resistance was found for the purified pristine SWNTs, fluorinated SWNTs, COOH SWNTs, and Ni-SWNTs, a significant decrease in resistance was observed in sulfonated SWNTs and unpurified pristine SWNTs, which could be due to the alignment of SWNTs in an electric field. The alignment of the sulfonated SWNTs is most likely due to the charge of the sulfate functional group. It is interesting to note that the alignment was found in the unpurified pristine SWNTs but not in the purified pristine ones which have lessened resistivity. The lower resistivity in the purified pristine SWNTs may be due to the smaller number (<5%) of impurities. The significance of this research is that hydrophilic COOH-SWNTs could be a better candidate than the hydrophobic pristine SWNTs for being used in many applications, especially in polymer nanocomposites.

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