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.

scholarly journals Modification of thin-film polyamide membrane with multi-walled carbon nanotubes by interfacial polymerization

2017 ◽  
Vol 7 (8) ◽  
pp. 4341-4350 ◽  
Author(s):  
Abdullah S. Al-Hobaib ◽  
Kh. M. Al-Sheetan ◽  
Mohammed Rafi Shaik ◽  
M. S. Al-Suhybani
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Interfacial Polymerization ◽  
Multi Walled Carbon Nanotubes ◽  
Polyamide Membrane ◽  
Walled Carbon Nanotubes

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

scholarly journals New Generation of Electrochemical Sensors Based on Multi-Walled Carbon Nanotubes

2018 ◽  
Vol 8 (10) ◽  
pp. 1925 ◽  
Author(s):  
Thiago Oliveira ◽  
Simone Morais
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensors ◽  
Industrial Applications ◽  
Charge Transfer Resistance ◽  
Active Surface Area ◽  
Synthesis Methods ◽  
Transfer Resistance ◽  
Multi Walled Carbon Nanotubes ◽  
New Generation ◽  
Walled Carbon Nanotubes

Multi-walled carbon nanotubes (MWCNT) have provided unprecedented advances in the design of electrochemical sensors. They are composed by sp2 carbon units oriented as multiple concentric tubes of rolled-up graphene, and present remarkable active surface area, chemical inertness, high strength, and low charge-transfer resistance in both aqueous and non-aqueous solutions. MWCNT are very versatile and have been boosting the development of a new generation of electrochemical sensors with application in medicine, pharmacology, food industry, forensic chemistry, and environmental fields. This work highlights the most important synthesis methods and relevant electrochemical properties of MWCNT for the construction of electrochemical sensors, and the numerous configurations and successful applications of these devices. Thousands of studies have been attesting to the exceptional electroanalytical performance of these devices, but there are still questions in MWCNT electrochemistry that deserve more investigation, aiming to provide new outlooks and advances in this field. Additionally, MWCNT-based sensors should be further explored for real industrial applications including for on-line quality control.

Sign in / Sign up

Export Citation Format

Share Document