Precise Membrane Separation of Nanoparticles Using a Microporous Polymer Containing Radially π-Conjugated Molecular Carbocycles

2021 ◽  
Author(s):  
Pingwu Du ◽  
Shengda Wang ◽  
Qiang Huang ◽  
Jinyi Wang ◽  
Pingsen Huang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Ion Channels ◽  
Membrane Separation ◽  
Porous Structures ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Membranes ◽  
Microporous Polymer ◽  
Carbon Nanotube Membranes

Aligned single-walled carbon nanotube membranes could be ideal candidates for nanoseparation and ion channels due to their uniform porous structures. However, it is a great challenge to construct a separation...

scholarly journals Ultra‐Permeable Single‐Walled Carbon Nanotube Membranes with Exceptional Performance at Scale

2020 ◽  
Vol 7 (24) ◽  
pp. 2001670 ◽  
Author(s):  
Melinda L. Jue ◽  
Steven F. Buchsbaum ◽  
Chiatai Chen ◽  
Sei Jin Park ◽  
Eric R. Meshot ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Membranes ◽  
Carbon Nanotube Membranes

Single-walled carbon nanotube membranes for optical applications in the extreme ultraviolet range

Carbon ◽  
2019 ◽  
Vol 155 ◽  
pp. 734-739 ◽  
Author(s):  
V.M. Gubarev ◽  
V.Y. Yakovlev ◽  
M.G. Sertsu ◽  
O.F. Yakushev ◽  
V.M. Krivtsun ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Extreme Ultraviolet ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Membranes ◽  
Ultraviolet Range ◽  
Carbon Nanotube Membranes ◽  
Optical Applications

scholarly journals Single-walled carbon nanotube membranes as non-reflective substrates for nanophotonic applications

2020 ◽  
Vol 32 (9) ◽  
pp. 095206
Author(s):  
Denis M Zhigunov ◽  
Daniil A Shilkin ◽  
Natalia G Kokareva ◽  
Vladimir O Bessonov ◽  
Sergey A Dyakov ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Membranes ◽  
Carbon Nanotube Membranes

scholarly journals Electrophoretically induced aqueous flow through single-walled carbon nanotube membranes

2012 ◽  
Vol 7 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Ji Wu ◽  
Karen Gerstandt ◽  
Hongbo Zhang ◽  
Jie Liu ◽  
Bruce J. Hinds
Keyword(s):  
Carbon Nanotube ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Membranes ◽  
Carbon Nanotube Membranes ◽  
Aqueous Flow ◽  
Flow Through

scholarly journals Modified Single-Walled Carbon Nanotube Membranes for the Elimination of Antibiotics from Water

Membranes ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 720
Author(s):  
Jana Gaálová ◽  
Mahdi Bourassi ◽  
Karel Soukup ◽  
Tereza Trávníčková ◽  
Daniel Bouša ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Membrane Surface ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Nanotube Membranes ◽  
Carbon Nanotube Membranes ◽  
Hydrophobic Layer ◽  
Walled Carbon Nanotubes

The hydrophilic and hydrophobic single-walled carbon nanotube membranes were prepared and progressively applied in sorption, filtration, and pertraction experiments with the aim of eliminating three antibiotics—tetracycline, sulfamethoxazole, and trimethoprim—as a single pollutant or as a mixture. The addition of SiO2 to the single-walled carbon nanotubes allowed a transparent study of the influence of porosity on the separation processes. The mild oxidation, increasing hydrophilicity, and reactivity of the single-walled carbon nanotube membranes with the pollutants were suitable for the filtration and sorption process, while non-oxidized materials with a hydrophobic layer were more appropriate for pertraction. The total pore volume increased with an increasing amount of SiO2 (from 743 to 1218 mm3/g) in the hydrophilic membranes. The hydrophobic layer completely covered the carbon nanotubes and SiO2 nanoparticles and provided significantly different membrane surface interactions with the antibiotics. Single-walled carbon nanotubes adsorbed the initial amount of antibiotics in less than 5 h. A time of 2.3 s was sufficient for the filtration of 98.8% of sulfamethoxazole, 95.5% of trimethoprim, and 87.0% of tetracycline. The thicker membranes demonstrate a higher adsorption capacity. However, the pertraction was slower than filtration, leading to total elimination of antibiotics (e.g., 3 days for tetracycline). The diffusion coefficient of the antibiotics varies between 0.7–2.7 × 10−10, depending on the addition of SiO2 in perfect agreement with the findings of the textural analysis and scanning electron microscopy observations. Similar to filtration, tetracycline is retained by the membranes more than sulfamethoxazole and trimethoprim.

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