Preparation of high-flux thin film nanocomposite reverse osmosis membranes by incorporating functionalized multi-walled carbon nanotubes

2011 ◽  
Vol 34 (1-3) ◽  
pp. 19-24 ◽  
Author(s):  
Lin Zhang ◽  
Guo-Zhong Shi ◽  
Shi Qiu ◽  
Li-Hua Cheng ◽  
Huan-Lin Chen
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Reverse Osmosis ◽  
High Flux ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Thin Film Nanocomposite ◽  
Reverse Osmosis 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.

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.

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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