Removal of cationic dyes from aqueous solution using magnetic multi-wall carbon nanotube nanocomposite as adsorbent

Gong, Ji-Lai; Wang, Bin; Zeng, Guangming; Yang, Chunping; Niu, Qiuya; Zhou, Wenjing; Liang, Yi

doi:10.1016/j.jhazmat.2008.09.072

Cited by 973 publications

(200 citation statements)

References 33 publications

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“…TGA-DTA profiles of MWCNT in air and Ar atmosphere. magnetic MWCNT and reported the pseudo second order kinetics for the adsorption [18]. Yao et al also suggested the pseudo second order kinetics for MB adsorption on a MWCNT [19].…”

Section: Dye Adsorption In Single-dye Solutionsmentioning

confidence: 98%

“…Gong et al tested a magnetic MWCNT for adsorption of cationic dyes, MB, neutral red (NR), and brilliant cresyl blue (BCB) and they found that the adsorption capacities of MB, NR and BCB were around 15, 20, and 23 mg/g, respectively [18]. Yao et al also tested a MWCNT for MB adsorption and obtained the adsorption capacity of 35, 46 and 65 at 0, 25 and 60°C, respectively [19].…”

Section: Dye Adsorption In Single-dye Solutionsmentioning

confidence: 99%

“…Gong et al reported removal of cationic dyes, methylene blue, neutral red and brilliant cresyl blue, from aqueous solution by a magnetic multiwalled carbon nanotube nanocomposite. They investigated adsorption kinetics, adsorption capacity of the adsorbent, and the effects of adsorption dosage and solution pH values on removal efficiency of those cationic dyes [18]. Yao et al also investigated the effect of temperature on the equilibrium adsorption of methylene blue and methyl orange from aqueous solution using carbon nanotubes [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synergistic and competitive adsorption of organic dyes on multiwalled carbon nanotubes

Wang

et al. 2012

Chemical Engineering Journal

213

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h i g h l i g h t s" Adsorption of methylene blue and acid red 183 on a MWCNT in single and binary dye systems was investigated. " MWCNT shows higher adsorption capacity to methylene blue in both systems. " A synergistic effect for basic and acid dyes occurs in a binary dye system. t r a c tA multiwalled carbon nanotube (MWCNT) was used as an adsorbent for removal of a cationic dye (methylene blue, MB) and acid dye (acid red 183, AR183) from aqueous solution in single and binary dye systems. Characterization of the MWCNT and MWCNT-dye systems were performed using several techniques such as Fourier transform infrared spectroscopy (FTIR), thermogravimetric-differential thermal analysis (TG-DTA), zeta potential and elemental analysis. Adsorption tests showed that the MWCNT presented higher adsorption of MB than AR183 in single and binary dye systems, revealing that p-p stacking is the main driving force responsible for the dye-MWCNT interaction. In single dye systems, the MWCNT presented the maximum adsorption capacities of MB and AR183 at 59.7 and 45.2 mg/g, respectively. In a binary dye system, a synergistic effect due to electronic attraction between MB and AR183 was found at low AR183 concentration (10 mg/L), which promotes the adsorption of both dyes on the MWCNT. However, MB adsorption could be reduced at higher AR183 concentration (>20 mg/L) due to a strong electrostatic attraction between MWCNT-AR183.

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Section: Dye Adsorption In Single-dye Solutionsmentioning

confidence: 98%

Section: Dye Adsorption In Single-dye Solutionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synergistic and competitive adsorption of organic dyes on multiwalled carbon nanotubes

Wang

et al. 2012

Chemical Engineering Journal

213

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“…Modification by CO 2 activation increased the surface area which made it suitable as a support for Pd catalyst [11]. Other studies have also reported magnetic carbon nanotubes for removal of dyes [12] and chromium [13]. Nitrogen-doped carbon nanotubes have been used for fuel cell applications [14] and have been prepared using iron catalysts [15].…”

Section: Resultsmentioning

confidence: 99%

Hydrocarbon Cracking Over Red Mud and Modified Red Mud Samples

Alharthi

Hargreaves

Pulford

et al. 2016

J. Sustain. Metall.

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The aluminum industry generates large quantities of red mud during the beneficiation of bauxite ore. The red mud is disposed of as a waste in dry or wet form. Given the issues with its disposal due to the large volume and high alkalinity, many research groups and industries have examined the use of red mud for different applications. The use of red mud as a pre-catalyst for the cracking of hydrocarbon leads to hydrogen formation and carbon deposition. Our earlier studies have shown its activity for reaction with methane and the formation of magnetic materials containing iron, iron carbide, and nanocarbon species. In this study, two aspects were studied: one was methane cracking over red mud, modified red mud, and waste from a nailwork factory site and the other was the application of different hydrocarbons, including nitrogencontaining precursors over red mud. Preliminary characterization of the resulting carbon deposits was performed. The activity for methane cracking increased when the red mud was activated and reduced before the reaction. Nitrogen-containing reactants led to the formation of nitrogen-doped carbon nanotubes. The nitrogen amount and morphology varied with the precursor used and the reaction temperature. This is an attractive application with potential for further modification of the carbon deposits for other catalytic and electrochemical applications.

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“…Carbon-based materials such as activated carbon, fullerene C60, carbon nanotubes, and graphene have been widely applied in water purification technology [9][10][11][12]. In particular, activated carbon, which is a micro-porous adsorbent, is very useful for the removal of various pollutants from water [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Application of fullerenes-extracted soot modified with ethylenediamine as a novel adsorbent of hexavalent chromium in water

Nakagawa

Kokubo

Moriwaki

2014

Journal of Environmental Chemical Engineering

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Removal of cationic dyes from aqueous solution using magnetic multi-wall carbon nanotube nanocomposite as adsorbent

Cited by 973 publications

References 33 publications

Synergistic and competitive adsorption of organic dyes on multiwalled carbon nanotubes

Synergistic and competitive adsorption of organic dyes on multiwalled carbon nanotubes

Hydrocarbon Cracking Over Red Mud and Modified Red Mud Samples

Application of fullerenes-extracted soot modified with ethylenediamine as a novel adsorbent of hexavalent chromium in water

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