Removal of Bisphenol A and 17β-Estradiol by Single-Walled Carbon Nanotubes in Aqueous Solution: Adsorption and Molecular Modeling

Zaib, Qammer; Khan, Iftheker A.; Saleh, Navid B.; Flora, Joseph R.V.; Park, Yong-Gyun; Yoon, Yeomin

doi:10.1007/s11270-012-1109-5

Cited by 83 publications

(45 citation statements)

References 70 publications

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“…Sun et al investigated the adsorption of E2 on multiwalled carbon nanotubes (MWCNTs) and found that the maximum adsorption capacity close to 25 mg/g [12]. However, it can be seen from this study that GO exhibited a higher adsorption capacity (149.4 mg/g) than the adsorbents reported above [11,12]. Compared with carbon nanotubes, GO possesses an open-layered structure that has a completely accessible adsorption surface for organic molecules.…”

Section: E2 Adsorption Isothermmentioning

confidence: 62%

“…It also can be seen that the adsorption capacity (q e ) calculated from the Langmuir equation decreased with the increasing temperature from 298 K to 338 K. In addition, there are several adsorbents that have been conducted to adsorption E2. Zaib et al prepared single-walled carbon nanotubes and tested for E2 adsorption [11]. The adsorption capacities determined from the Langmuir isotherm were around 26 mg/g.…”

Section: E2 Adsorption Isothermmentioning

confidence: 99%

“…Yoon et al investigated adsorption of E2 by several powdered activated carbons (PAC) [10]. Besides, sorbents including single-walled carbon nanotubes [11], multi-walled carbon nanotubes [12], polyamide thin-film composite nanofiltration (NF) membranes [13], and molecularly imprinted polymer [14] were successfully used to adsorption E2 from aqueous systems. However, these sorbents suffer the problem of either low sorption capacities or high-cost.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of 17β-estradiol by few-layered graphene oxide nanosheets from aqueous solutions: External influence and adsorption mechanism

Jiang

Liu

Zeng

et al. 2016

Chemical Engineering Journal

260

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Section: E2 Adsorption Isothermmentioning

confidence: 62%

Section: E2 Adsorption Isothermmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Removal of 17β-estradiol by few-layered graphene oxide nanosheets from aqueous solutions: External influence and adsorption mechanism

Jiang

Liu

Zeng

et al. 2016

Chemical Engineering Journal

260

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“…There has also been interest in using carbon nanotubes in electrochemical sensors for detecting BPA [21,22] or in devices used for its quantitative analysis [23]. Furthermore the ability of CNTs to remove BPA by adsorption has been explored [24][25][26]. Despite this, to the best of our knowledge, this is the first study which has examined the potential of free-standing buckypaper membranes to remove TrOCs from an aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, properties, water and solute permeability of MWNT buckypapers

Rashid

Pham

Sweetman

et al. 2014

Journal of Membrane Science

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High power tip sonication was used to prepare dispersions containing multi-walled carbon nanotubes (MWNTs), or multi-walled carbon nanotubes functionalised with carboxylic acid groups (MWNT-COOH) or amine groups (MWNT-NH2). The dispersion of carbon nanotubes was facilitated by the presence of a surfactant (Triton X-100) or various macrocyclic ligands (derivatised porphyrin, phthalocyanine or calixarene) in the solution. Vacuum filtration of the dispersions afforded self-supporting membranes known as buckypapers. Microanalysis provided evidence for retention of the surfactant or macrocyclic ligands in the buckypapers, which were also characterised by measurement of their electrical conductivities (24±16 to 58±11 S/cm), contact angles (28±1° to 55±10°) and mechanical properties (tensile strengths varied between 1.6±0.7 and 13±2 MPa). The surface and internal morphologies of the buckypapers were similar to each other, which correlates with the lack of variation observed in their permeability's towards water. The ability of selected buckypapers to remove trace organic contaminants (TrOCs) was also examined. A buckypaper prepared using Triton X-100 as the dispersant showed more than 80% removal efficiency for 11 out of the 12 TrOCs investigated in this study. On the other hand, a buckypaper prepared from MWNTs and phthalocyaninetetrasulfonic acid exhibited lower removal efficiencies for these TrOCs, possibly due to their smaller specific surface area. KeywordsCarbon nanotubes, buckypapers, water permeability, trace organic contaminants, bisphenol A, GeoQuest S/cm), contact angles (28 ± 1 to 55 ± 10 ) and mechanical properties (tensile strengths varied between 1.6 ± 0.7 and 13 ± 2 MPa). The surface and internal morphologies of the buckypapers were similar to each other, which correlates with the lack of variation observed in their permeability's towards water. The ability of selected buckypapers to remove trace organic contaminants (TrOCs) was also examined. A buckypaper prepared using Triton X-100 as the dispersant showed more than 80% removal efficiency for 11 out of the 12 TrOCs investigated in this study. On the other hand, a buckypaper prepared from MWNTs and phthalocyaninetetrasulfonic acid exhibited lower removal efficiencies for these TrOCs, possibly due to their smaller specific surface area.

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“…The removal of endocrine disrupting compounds (EDC) from water has attracted considerable attention because of their interference with human reproductive systems by blocking the activity of natural hormones [53][54][55].…”

Section: Removal Of Drugs and Emerging Contaminantsmentioning

confidence: 99%

Carbon Nanomaterials for Environmental Applications

Machado

Lima

Jauris

et al. 2015

Carbon Nanostructures

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The qualities of waters are constantly diminishing due to release of toxic components into the environment. It is very important to treat wastewater in order to remove pollutants and improve water quality. Generally, adsorption technology has proven to be one of the most effective techniques in the separation and removal of a wide variety of organic and inorganic pollutants from wastewater. Recently, carbon nanomaterials such as fullerene, carbon nanotubes (CNT) and graphene-family have become promising adsorbents for water treatment. This chapter compiles relevant knowledge about the experimental and theoretical adsorption activities of fullerene, CNT and graphene-family as nanoadsorbents for removal of organic and inorganic environmental pollutants.

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Removal of Bisphenol A and 17β-Estradiol by Single-Walled Carbon Nanotubes in Aqueous Solution: Adsorption and Molecular Modeling

Cited by 83 publications

References 70 publications

Removal of 17β-estradiol by few-layered graphene oxide nanosheets from aqueous solutions: External influence and adsorption mechanism

Removal of 17β-estradiol by few-layered graphene oxide nanosheets from aqueous solutions: External influence and adsorption mechanism

Synthesis, properties, water and solute permeability of MWNT buckypapers

Carbon Nanomaterials for Environmental Applications

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