Abstract
Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m2/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNTs/PANI complex. MWCNTs/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h.
| Original language | English |
|---|---|
| Pages (from-to) | 109-119 |
| Number of pages | 11 |
| Journal | Separation and Purification Technology |
| Volume | 163 |
| DOIs | |
| Publication status | Published - 2016 May 11 |
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Keywords
- Carbon nanotube membrane
- In-situ polymerisation
- MWCNTs/PANI complex
- NOM removal
- UF membrane
ASJC Scopus subject areas
- Analytical Chemistry
- Filtration and Separation
Cite this
High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal. / Lee, Jieun; Ye, Yun; Ward, Antony J.; Zhou, Cuifeng; Chen, Vicki; Minett, Andrew I.; Lee, Sang-Hyup; Liu, Zongwen; Chae, So Ryong; Shi, Jeffrey.
In: Separation and Purification Technology, Vol. 163, 11.05.2016, p. 109-119.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal
AU - Lee, Jieun
AU - Ye, Yun
AU - Ward, Antony J.
AU - Zhou, Cuifeng
AU - Chen, Vicki
AU - Minett, Andrew I.
AU - Lee, Sang-Hyup
AU - Liu, Zongwen
AU - Chae, So Ryong
AU - Shi, Jeffrey
PY - 2016/5/11
Y1 - 2016/5/11
N2 - Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m2/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNTs/PANI complex. MWCNTs/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h.
AB - Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m2/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNTs/PANI complex. MWCNTs/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h.
KW - Carbon nanotube membrane
KW - In-situ polymerisation
KW - MWCNTs/PANI complex
KW - NOM removal
KW - UF membrane
UR - http://www.scopus.com/inward/record.url?scp=84962308038&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84962308038&partnerID=8YFLogxK
U2 - 10.1016/j.seppur.2016.02.032
DO - 10.1016/j.seppur.2016.02.032
M3 - Article
AN - SCOPUS:84962308038
VL - 163
SP - 109
EP - 119
JO - Separation and Purification Technology
JF - Separation and Purification Technology
SN - 1383-5866
ER -