Adsorption of acridine orange and methylene blue synthetic dyes and anthracene on single wall carbon nanotubes: A first principle approach

Jauris, Iuri Medeiros; Fagan, Solange B.; Adebayo, Matthew A.; Machado, Fernando Machado

doi:10.1016/j.comptc.2015.11.021

Cited by 53 publications

(21 citation statements)

References 30 publications

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“…47 The reason for such phenomenon is because the symmetry is broken in CNT. 22 Similarly, semiconductor characteristics are shown by both (16,0) and (25,0) SWCNTs with band gaps of 0.45 and 0.26 eV, respectively. The band gap reduces as the size of the nanotube increases.…”

Section: Articlementioning

confidence: 93%

“…46 It may be understood from the references 21,22 that (5,5) SWCNT demonstrated a metallic behavior, while (8,0) SWCNT demonstrated a semiconductor character, displaying 0.6 eV variance between the valence and the conduction bands. 21,22 The reactivity of the CNT is also significantly influenced by the vacancy. The pristine (5,5) and (8,0) SWCNTs in the vacancy display high charge density, making the site more reactive.…”

Section: Articlementioning

confidence: 99%

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Adsorption of Alizarin Red S Dye by Carbon Nanotubes: An Experimental and Theoretical Investigation

et al. 2016

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This study evaluated the feasibility of removing Alizarin Red S dye (ARS) from aqueous solutions, using nanoadsorbents such as single and multiwalled carbon nanotubes (SWCNT and MWCNT, respectively). The effect of pH, shaking time, and temperature on adsorption was studied. The pH 2.0 was observed to show optimum removal for both of the carbon nanotubes. The equilibrium time (298−318 K) was fixed at 65 and 100 min for SWCNT and MWCNT, respectively. The kinetics of adsorption was calculated using pseudo-first-order, pseudo-second-order, and general-order equations. The calculations revealed that the general-order kinetic equation best-fit the adsorption data. The Liu isotherm model best fit the equilibrium data (298−318 K). The maximum sorption capacity at 318 K for ARS dye was 312.5 and 135.2 mg g −1 for SWCNT and MWCNT, respectively. Change in entropy (ΔS°), Gibb's free energy change (ΔG°), and enthalpy (ΔH°) were calculated for the adsorption of ARS dye. The electrostatic interaction between nanoadsorbent−adsorbate was conveyed using the magnitude of change in enthalpy. Ab initio simulation was used to study the interaction of ARS with (5,5) and (8,0) SWCNTs, and (16,0) and (25,0) SWCNTs with and without vacancy. The theoretical calculations showed that the binding energies between ARS dye and SWCNTs are enhanced as the nanotube diameter gets bigger; however, the distance of binding remains unchanged. Therefore, the results from first principle calculations indicated that electrostatic interaction may be responsible for the adsorption of ARS dye onto SWCNT. The theoretical outcomes were found to be in coordination with the experimental estimates.

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Section: Articlementioning

confidence: 93%

Section: Articlementioning

confidence: 99%

Adsorption of Alizarin Red S Dye by Carbon Nanotubes: An Experimental and Theoretical Investigation

et al. 2016

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“…Jauris et al studied the interaction between SWCNT and two synthetic dyes (Methylene Blue and Acridine Orange) (Jauris, Fagan, Adebayo, & Machado, 2016). They concluded that, where the dyes are parallel and planar to the nanotubes due to a predominance of π-π interactions between dyes and nanotubes; these configurations are stable.…”

Section: Water/oil Repellence Textilesmentioning

confidence: 99%

Carbon nanotube and its applications in textile industry – A review

Shahidi

Moazzenchi

2018

The Journal of The Textile Institute

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One of the major components of nanotechnology is Carbon nanotube (CNT) that can have a lengthto-diameter ratio more than 1,000,000. They are used in several fields in material science, due to their exceptional electrical, mechanical, and thermal properties, which are anisotropic. Different techniques have been developed to produce CNT. They have good potential for applications in various technological areas such as nanoelectronic, biotechnology, material science, polymer, composite, and textile industries. In this paper, recent researches on application of CNT in textile industry are reviewed. Treatment of textiles with CNT leads to the production of a wide variety of conductive textiles with different electrical properties. The wear performances of fabrics apply with CNT to open the potentiality of producing composite materials for conventional and innovative applications, ranging from conventional apparel and sportswear to protective clothing, heating equipment, automotive textiles, building covering, geo-textiles, biomedical textiles, etc.

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“…Several works in the literature show the magnetic separation capacity of Fe 3 O 4 @C core-shell nanoparticles and their application in various effluent treatments [12,[17][18][19][20][21][22][23][24]. Wu et al [17] stated in their study that easy separation is the major priority of magnetic adsorbents.…”

Section: Fe 3 O 4 @C Core-shell Nanoparticles Characteristicsmentioning

confidence: 99%

“…Fe 3 O 4 @C core-shell nanoparticles consist of a magnetic core and carbon coating (Figures 1-3), owing its importance to characteristics such as high adsorption, easy magnetic separation and regeneration capacity [12,[15][16][17][18][19][20][21][22][23][24].…”

Section: Fe 3 O 4 @C Core-shell Nanoparticles Characteristicsmentioning

confidence: 99%

Synthesis and Potential Adsorption of Fe3O4@C Core-Shell Nanoparticles for to Removal of Pollutants in Aqueous Solutions: A Brief Review.

Mm¹,

Macuvele²,

Müller³

et al. 2017

J Adv Chem Eng

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Journal of Advanced Chemical EngineeringLima et al., J Adv Chem Eng 2017, 7:1 DOI: 10.4172/2090 Volume AbstractCore-shell Fe 3 O 4 @C nanoparticles consist of a magnetic core and carbon coating, and exhibit high adsorptive capacity, easy magnetic separation and reusability. Due to these properties, core-shell Fe 3 O 4 @C nanoparticles have great potential application in adsorption, separation and wastewater treatment. Magnetic separation based on the super paramagnetic Fe 3 O 4 has received considerable attention and is widely used for the removal of dye, oil pharmaceuticals and metals from water due to its high efficiency and economic viability. Therefore, the main characteristics of the core-shell Fe 3 O 4 @C nanoparticles, the different types of synthesis, as well as the main applications for the removal of water pollutants were reviewed. In this brief review, an overview of the basic properties of the Fe 3 O 4 @C core-shell nanoparticles are given, and the most important and more frequently used methods for the synthesis of Fe 3 O 4 @C core-shell nanoparticles have been summarized along with the description of its adsorbent application potential.

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Adsorption of acridine orange and methylene blue synthetic dyes and anthracene on single wall carbon nanotubes: A first principle approach

Cited by 53 publications

References 30 publications

Adsorption of Alizarin Red S Dye by Carbon Nanotubes: An Experimental and Theoretical Investigation

Adsorption of Alizarin Red S Dye by Carbon Nanotubes: An Experimental and Theoretical Investigation

Carbon nanotube and its applications in textile industry – A review

Synthesis and Potential Adsorption of Fe3O4@C Core-Shell Nanoparticles for to Removal of Pollutants in Aqueous Solutions: A Brief Review.

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