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Thin-Film Nanocomposite (TFN) Membranes Incorporated with Super-Hydrophilic Metal-Organic Framework (MOF) UiO-66: Toward Enhancement of Water Flux and Salt Rejection.
ACS Appl Mater Interfaces 2017; 9(8):7523-7534AA

Abstract

Zirconiumv (IV)-carboxylate metal-organic framework (MOF) UiO-66 nanoparticles were successfully synthesized and incorporated in the polyamide (PA) selective layer to fabricate novel thin-film nanocomposite (TFN) membranes. Compared to unmodified pure polyamide thin-film composite (TFC) membranes, the incorporation of UiO-66 nanoparticles significantly changes the membrane morphology and chemistry, leading to an improvement of intrinsic separation properties due to the molecular sieving and superhydrophilic nature of UiO-66 particles. The best performing TFN-U2 (0.1 wt % particle loading) membrane not only shows a 52% increase of water permeability but also maintains salt rejection levels (∼95%) similar to the benchmark. The effects of UiO-66 loading on the forward osmosis (FO) performance were also investigated. Incorporation of 0.1 wt % UiO-66 produced a maximum water flux increase of 40% and 25% over the TFC control under PRO and FO modes, when 1 M NaCl was used as the draw solution against deionized water feed. Meanwhile, solute reverse flux was maintained at a relatively low level. In addition, TFN-U2 membrane displayed a relatively linear increase in FO water flux with increasing NaCl concentration up to 2.0 M, suggesting a slightly reduced internal concentration polarization effect. To our best knowledge, the current study is the first to consider implementation of Zr-MOFs (UiO-66) onto TFN-FO membranes.

Authors+Show Affiliations

Department of Chemical and Biomolecular Engineering, National University of Singapore , Singapore 117585, Singapore.Department of Chemical and Biomolecular Engineering, National University of Singapore , Singapore 117585, Singapore.Department of Chemical and Biomolecular Engineering, National University of Singapore , Singapore 117585, Singapore.Department of Chemical and Biomolecular Engineering, National University of Singapore , Singapore 117585, Singapore.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28186405

Citation

Ma, Dangchen, et al. "Thin-Film Nanocomposite (TFN) Membranes Incorporated With Super-Hydrophilic Metal-Organic Framework (MOF) UiO-66: Toward Enhancement of Water Flux and Salt Rejection." ACS Applied Materials & Interfaces, vol. 9, no. 8, 2017, pp. 7523-7534.
Ma D, Peh SB, Han G, et al. Thin-Film Nanocomposite (TFN) Membranes Incorporated with Super-Hydrophilic Metal-Organic Framework (MOF) UiO-66: Toward Enhancement of Water Flux and Salt Rejection. ACS Appl Mater Interfaces. 2017;9(8):7523-7534.
Ma, D., Peh, S. B., Han, G., & Chen, S. B. (2017). Thin-Film Nanocomposite (TFN) Membranes Incorporated with Super-Hydrophilic Metal-Organic Framework (MOF) UiO-66: Toward Enhancement of Water Flux and Salt Rejection. ACS Applied Materials & Interfaces, 9(8), pp. 7523-7534. doi:10.1021/acsami.6b14223.
Ma D, et al. Thin-Film Nanocomposite (TFN) Membranes Incorporated With Super-Hydrophilic Metal-Organic Framework (MOF) UiO-66: Toward Enhancement of Water Flux and Salt Rejection. ACS Appl Mater Interfaces. 2017 Mar 1;9(8):7523-7534. PubMed PMID: 28186405.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Thin-Film Nanocomposite (TFN) Membranes Incorporated with Super-Hydrophilic Metal-Organic Framework (MOF) UiO-66: Toward Enhancement of Water Flux and Salt Rejection. AU - Ma,Dangchen, AU - Peh,Shing Bo, AU - Han,Gang, AU - Chen,Shing Bor, Y1 - 2017/02/17/ PY - 2017/2/12/pubmed PY - 2017/2/12/medline PY - 2017/2/11/entrez KW - UiO-66 KW - forward osmosis (FO) KW - internal concentration polarization (ICP) KW - metal−organic framework (MOF) KW - seawater desalination KW - thin-film nanocomposite (TFN) SP - 7523 EP - 7534 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 9 IS - 8 N2 - Zirconiumv (IV)-carboxylate metal-organic framework (MOF) UiO-66 nanoparticles were successfully synthesized and incorporated in the polyamide (PA) selective layer to fabricate novel thin-film nanocomposite (TFN) membranes. Compared to unmodified pure polyamide thin-film composite (TFC) membranes, the incorporation of UiO-66 nanoparticles significantly changes the membrane morphology and chemistry, leading to an improvement of intrinsic separation properties due to the molecular sieving and superhydrophilic nature of UiO-66 particles. The best performing TFN-U2 (0.1 wt % particle loading) membrane not only shows a 52% increase of water permeability but also maintains salt rejection levels (∼95%) similar to the benchmark. The effects of UiO-66 loading on the forward osmosis (FO) performance were also investigated. Incorporation of 0.1 wt % UiO-66 produced a maximum water flux increase of 40% and 25% over the TFC control under PRO and FO modes, when 1 M NaCl was used as the draw solution against deionized water feed. Meanwhile, solute reverse flux was maintained at a relatively low level. In addition, TFN-U2 membrane displayed a relatively linear increase in FO water flux with increasing NaCl concentration up to 2.0 M, suggesting a slightly reduced internal concentration polarization effect. To our best knowledge, the current study is the first to consider implementation of Zr-MOFs (UiO-66) onto TFN-FO membranes. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/28186405/Thin_Film_Nanocomposite__TFN__Membranes_Incorporated_with_Super_Hydrophilic_Metal_Organic_Framework__MOF__UiO_66:_Toward_Enhancement_of_Water_Flux_and_Salt_Rejection_ L2 - https://dx.doi.org/10.1021/acsami.6b14223 DB - PRIME DP - Unbound Medicine ER -