Recent advances in carbon nanomaterial-based adsorbents for water purification

Gusain, Rashi; Kumar, Neeraj; Ray, Suprakas Sinha

doi:10.1016/j.ccr.2019.213111

Cited by 421 publications

(137 citation statements)

References 649 publications

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“…The preparation of 3D CNF-based nanomaterials with high porosity is an effective way to improve the adsorption performance of an adsorbent and realize the large-scale application of carbon nanomaterials for water treatment in industry. 114 Here we would like to present several examples of using 3D CNF nanomaterials for oil/water separation, the adsorption of heavy metal ions and dyes, and capacitive deionization.…”

Section: Water Purificationmentioning

confidence: 99%

Carbon nanofiber-based three-dimensional nanomaterials for energy and environmental applications

et al. 2020

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Section: Water Purificationmentioning

confidence: 99%

Carbon nanofiber-based three-dimensional nanomaterials for energy and environmental applications

et al. 2020

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“…Besides a setback on the relevant research, carbon nanotubes and their functionalized counterparts are now attracting a recursive interest as hydrogen sorbents [14][15][16][17][18][19][20][21]. This is primarily because the nanotubes are used as structured supports in advanced nanocomposites or can be embedded in membrane bilayers and mixed matrices [22][23][24][25][26][27][28]. Such systems, which have been extensively adopted in applications of biotechnology and biomedicine, are also investigated as candidate materials for energy storage.…”

Section: Introductionmentioning

confidence: 99%

Pulling Simulations and Hydrogen Sorption Modelling on Carbon Nanotube Bundles

Gotzias

Sapalidis

2020

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Recent progress in molecular simulation technology has developed an interest in modernizing the usual computational methods and approaches. For instance, most of the theoretical work on hydrogen adsorption on carbon nanotubes was conducted a decade ago. It should be insightful to reinvestigate the field and take advantage of code improvements and features implemented in contemporary software. One example of such features is the pulling simulation modules now available in many molecular dynamics programs. We conduct pulling simulations on pairs of carbon nanotubes and measure the inter-tube distance before they dissociate in water. We use this distance to set the interval size between adjacent nanotubes as we arrange them in bundle configurations. We consider bundles with triangular, intermediate and honeycomb patterns, and armchair nanotubes with a chiral index from n = 5 to n = 10. Then, we simulate low pressure hydrogen adsorption isotherms at 77 K, using the grand canonical Monte Carlo method. The different bundle configurations adsorb great hydrogen amounts that may exceed 2% wt at ambient pressures. The computed hydrogen capacities are considered large for physisorption on carbon nanostructures and attributed to the ultra-microporous network and extraordinary high surface area of the configured models.

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“…For example, dyes are very resistant against degradation by catalysis, with a common example given by the stable characteristics of dyes under even sunlight. Recently, adsorption has been regarded to be very effective and attractive because of its operation under mild conditions and no need of oxidant, active catalyst, and irradiation [8,9]. Therefore, adsorption with carbon nanotubes, activated carbon (AC), biomass, and metallic-organic frameworks (MOFs) has been actively studied for the removal of dye molecules from water [10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of bulky dye molecules from water with mesoporous polyaniline-derived carbon

Park

Khan

et al. 2020

Beilstein J. Nanotechnol.

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Polyaniline-derived carbon (PDC) was obtained via pyrolysis of polyaniline under different temperatures and applied for the purification of water contaminated with dye molecules of different sizes and charge by adsorption. With increasing pyrolysis temperature, it was found that the hydrophobicity, pore size and mesopore volume increased. A mesoporous PDC sample obtained via pyrolysis at 900 °C showed remarkable performance in the adsorption of dye molecules, irrespective of dye charge, especially in the removal of bulky dye molecules, such as acid red 1 (AR1) and Janus green B (JGB). For example, the most competitive PDC material showed a Q 0 value (maximum adsorption capacity) 8.1 times that of commercial, activated carbon for AR1. The remarkable adsorption of AR1 and JGB over KOH-900 could be explained by the combined mechanisms of hydrophobic, π-π, electrostatic and van der Waals interactions. 597

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Recent advances in carbon nanomaterial-based adsorbents for water purification

Cited by 421 publications

References 649 publications

Carbon nanofiber-based three-dimensional nanomaterials for energy and environmental applications

Carbon nanofiber-based three-dimensional nanomaterials for energy and environmental applications

Pulling Simulations and Hydrogen Sorption Modelling on Carbon Nanotube Bundles

Adsorptive removal of bulky dye molecules from water with mesoporous polyaniline-derived carbon

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