Gas separation performance of thin film nanocomposite membranes incorporated with polymethyl methacrylate grafted multi-walled carbon nanotubes

2015 ◽  
Vol 102 ◽  
pp. 339-345 ◽  
Author(s):  
K.C. Wong ◽  
P.S. Goh ◽  
A.F. Ismail
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Polymethyl Methacrylate ◽  
Gas Separation ◽  
Separation Performance ◽  
Nanocomposite Membranes ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Gas Separation Performance ◽  
Thin Film Nanocomposite

Thin film nanocomposite embedded with polymethyl methacrylate modified multi-walled carbon nanotubes for CO2 removal

RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 31683-31690 ◽  
Author(s):  
K. C. Wong ◽  
P. S. Goh ◽  
B. C. Ng ◽  
A. F. Ismail
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Polymethyl Methacrylate ◽  
Co2 Removal ◽  
Film Composite ◽  
Thin Film Composite ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Thin Film Nanocomposite

Thin film nanocomposite loaded with milled polymethyl methacrylate grafted multi-walled carbon nanotubes achieved 29%, 47% and 9% increment in CO2 permeance, CO2/N2 and CO2/CH4 selectivity respectively compared to its thin film composite counterpart.

Preparation of Multi-Walled Carbon Nanotubes (MWNTs)/Polymethyl Methacrylate (PMMA) Hybrid Membranes and their Sorption Performance of Benzene/Cyclohexane

2013 ◽  
Vol 740 ◽  
pp. 550-554
Author(s):  
Li Guang Wu ◽  
Yu Fei Chen ◽  
Yang Rong ◽  
Ting Wang ◽  
Yu Xing Wang
Keyword(s):  
Carbon Nanotubes ◽  
Polymethyl Methacrylate ◽  
Physical Adsorption ◽  
Separation Performance ◽  
Polar Group ◽  
Hybrid Membranes ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Effect Of Surface

Novel organic-inorganic hybrid membranes of polymethyl methacrylate (PMMA) containing multi-walled carbon nanotubes (MWNTs) were successfully prepared. Then, the swelling adsorption experiments of benzene/cyclohexane mixtures were employed to evaluate the performance of these membranes. Via transmission electron microscopy (TEM), Fourier transform infrared spectrophotometry (FTIR), the effect of surface modification on the morphology and properties of carbon nanotubes and hybrid membranes were studied. The results indicated that the separation performance for benzene/cyclohexane of the hybrid membranes depended on both the polarity of carbon nanotubes and the distribution of MWNTs in PMMA. Because the dispersion of MWNTs were obviously improved after acidification and ammonization modification, the hybrid membranes including modified MWNTs showed higher performance than membranes with un-modified MWNTs. In addition, a large number of polar group were introduced in the MWNTs during modification of acidification and ammonization, which depressed obviously the physical adsorption of cyclohexane by MWNTs. Therefore, these two changes in the properties of MWNTs both improved the separation performance of hybrid membranes.

scholarly journals Novel Thin Film Nanocomposite Forward Osmosis Membranes Prepared by Organic Phase Controlled Interfacial Polymerization with Functional Multi-Walled Carbon Nanotubes

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 476
Author(s):  
Xu Zhang ◽  
Jiuhan Zheng ◽  
Lusheng Xu ◽  
Ming Yin ◽  
Guoliang Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Organic Phase ◽  
Interfacial Polymerization ◽  
Forward Osmosis ◽  
Structural Parameter ◽  
Transfer Resistance ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Thin Film Nanocomposite

Novel high-quality thin film nanocomposite (TFN) membranes for enhanced forward osmosis (FO) were first synthesized through organic phase controlled interfacial polymerization by utilizing functional multi-walled carbon nanotubes (MWCNTs). As 3-aminopropyltriethoxysilane (APTES) grafted MWCNTs via an amidation reaction significantly promoted the dispersion in organic solution, MWCNTs-APTES with better compatibility effectively restricted the penetration of trimesoyl chloride (TMC), thus adjusting the morphology and characters of TFN membranes. Various techniques such as Fourier transform infrared spectra (FTIR), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), sessile droplet analysis and FO experiments and reverse osmosis (RO) operation were taken to characterize and evaluate the performance of nanocomposites and membranes. The prepared TFN FO membranes exhibited good hydrophilicity and separation efficiency, in which water flux was about twice those of thin film composite (TFC) membranes without MWCNTs-APTES in both AL-DS and AL-FS modes. Compared with the original TFC membrane, the membrane structural parameter of the novel TFN FO membrane sharply was cut down to 60.7%. Based on the large number of low mass-transfer resistance channels provided by functional nanocomposites, the progresses may provide a facile approach to fabricate novel TFN FO membranes with advanced selectivity and permeability.

Growth control of single and multi-walled carbon nanotubes by thin film catalyst

2002 ◽  
Vol 366 (1-2) ◽  
pp. 109-114 ◽  
Author(s):  
Young Joon Yoon ◽  
Jun Cheol Bae ◽  
Hong Koo Baik ◽  
SeongJin Cho ◽  
Se-Jong Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Growth Control ◽  
Thin Film Catalyst ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes
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