Microwave-assisted removal of malachite green by carboxylate functionalized multi-walled carbon nanotubes: Kinetics and equilibrium study

Sadegh, Hamidreza; Shahryari-ghoshekandi, Ramin; Agarwal, Shilpi; Tyagi, Inderjeet; Asif, Mohammad; Gupta, Vinod Kumar

doi:10.1016/j.molliq.2015.02.007

Cited by 98 publications

(30 citation statements)

References 84 publications

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“…CNTs are considered to be one of the most promising adsorbents for wastewater treatment because of their large adsorption capacity for synthetic dyes [15]. Multi-walled carbon nanotubes (MWCNTs) have been shown to surpass cadmium hydroxide nanowire-loaded AC (Cd(OH) 2 -NW-AC) with respect to their efficient removal of safranin O (SO) from wastewater [83].…”

Section: Carbon Nanotubes (Cnts)mentioning

confidence: 99%

“…Moreover, CNTs were typically used directly without further treatment [41,69,85]. Therefore, CNT functionalization has been initiated to introduce various functional groups that provide new adsorption sites [15]. Among such modifications, oxidation is an easy method for introducing hydroxyl and carbonyl groups to the sidewalls of CNTs.…”

Section: Carbon Nanotubes (Cnts)mentioning

confidence: 99%

“…The most common toxic materials in wastewaters responsible for particular problems are heavy metal ions and azo dyes [13][14][15][16][17][18]. Despite the fact that the human body needs low doses of metal ions such as for example Zn(II) ions, their excess may cause eminent health problems such as depression, lethargy, neurological signs and increased thirst.…”

Section: Introductionmentioning

confidence: 99%

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The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

et al. 2017

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Nanomaterials have been extensively studied for heavy metal ions and dye removals from wastewater. This article reviews the role of nanomaterials as effective adsorbents for wastewater purification. In recent years, numerous novel nanomaterial adsorbents have been developed for enhancing the efficiency and adsorption capacities of removing contaminants from wastewater. The innovation, forthcoming development, and challenges of cost-effective and environmentally acceptable nanomaterials for water purification are discussed and reviewed in this article. This review concludes that nanomaterials have many unique morphological and structural properties that qualify them to be used as effective adsorbents to solve several environmental problems. Graphical Abstract& Hamidreza Sadegh

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Section: Carbon Nanotubes (Cnts)mentioning

confidence: 99%

Section: Carbon Nanotubes (Cnts)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

et al. 2017

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“…Based on the correlation coefficient as shown in Table 2, isotherm Langmuir represents a better fit of experimental data than Freundlich isotherm in all cases. It indicates that the surfaces of adsorbents are mainly made up of heterogeneous adsorption patches [24] in addition to less homogeneous patches [32]. The Freundlich constant (n) is a measure of adsorption intensity.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of Ammonium Ions onto Multi-Walled Carbon Nanotubes

Sadegh¹,

Ali²,

Abbasi³

et al. 2017

Studia UBB Chemia

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ABSTRACT. Multi-walled carbon nanotubes (MWCNTs) surfaces have been characterized by FTIR and SEM techniques. The adsorption performance of MWCNTs was investigated for the removal of ammonium ions from wastewater. The effect of contact time, temperature and initial ions concentration on the adsorption of ammonium ions by MWCNTs were studied and optimized. The results showed a high adsorption capacity of 129 mg/g according to Langmuir isotherm model and removal efficiency of 95%. In addition, the adsorption kinetic and equilibrium data were fitted to the pseudo-second-order model. The potential application of MWCNTs for adsorption of ammonium ions from wastewater was successfully accomplished using a batch adsorption technique.

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“…It is also valuable in studying hydrogen bonds, halogen bonds, molecular recognitions and the intermolecular interaction of aromatics [138][139][140][141][142] …”

Section: Resultsmentioning

confidence: 99%

Nano Particles @ Calix Arenas Via Aqueous Solution

Dehghani¹

2015

Orient. J. Chem

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The electronic structure and magnetic properties of Al 2 O 3 , GaN and Fe 3 O 4 @ Calix (8) COOH have been studied using ONIOM and DFT methods. The studies focus on how to improve the adsorption of some nano particles solution aqueous for achieving good magnetic and functionalized potential performances. The results revealed that the Fe3O4@ Calix (8) COOH and some of its derivations exhibited better thermodynamic stability. Furthermore, the particle size and magnetic property of the GaN@ Calix (8) COOH nanoparticles can be controlled by the aqueous. The electrical properties such as NMR Shielding, electron densities, energy densities, potential energy densities, ELF, LOL, ellipticity of electron density, eta index and ECP for nanoparticles@ Calix (8)COOH have been calculated.

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Microwave-assisted removal of malachite green by carboxylate functionalized multi-walled carbon nanotubes: Kinetics and equilibrium study

Cited by 98 publications

References 84 publications

The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

The role of nanomaterials as effective adsorbents and their applications in wastewater treatment

Adsorption of Ammonium Ions onto Multi-Walled Carbon Nanotubes

Nano Particles @ Calix Arenas Via Aqueous Solution

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