Projekt

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Fabrication and Evaluation of Carbon Nanotube Membranes for the Separation of Organic and Inorganic Micropollutants

Titel Englisch Fabrication and Evaluation of Carbon Nanotube Membranes for the Separation of Organic and Inorganic Micropollutants
Gesuchsteller/in Park Hyung Gyu
Nummer 137964
Förderungsinstrument Projektförderung (Abt. I-III)
Forschungseinrichtung Institut für Energietechnik ETH Zürich
Hochschule ETH Zürich - ETHZ
Hauptdisziplin Maschineningenieurwesen
Beginn/Ende 01.01.2012 - 31.12.2015
Bewilligter Betrag 188'144.00
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Alle Disziplinen (3)

Disziplin
Maschineningenieurwesen
Materialwissenschaften
Andere Gebiete der Ingenieurwissenschaften

Keywords (4)

Water purification; Micropollutants removal; Carbon nanotube; Membrane

Lay Summary (Englisch)

Lead
Lay summary

Limited access to clean water defines one of the global sustainability issues facing humanity today. Growing concerns of freshwater feeding to a significant portion of the world population are calling for immediate attention from science and technology, centered around efficient seawater desalination and purification. Although many diseases are related to hygienic aspects, the presence of pollutants in water resources poses an increasing problem, not only in industrialized countries but also in developing countries and transition countries where wastewater treatment often is partially or completely failing. Compared with disinfection of nutrients and organic matter (macropollutants) in water for which existing technologies are well functioning, the removal of many other types of dissolved pollutants is rather challenging primarily because of their vast range of compounds (over 30,000), low concentration (in picogram to nanogram per liter) and diverse characteristics. With such existing challenges in detection and removal, the detrimental influence of these micropollutants can threaten not only human health but also aquatic ecosystems and biodiversity. To safeguard our society from such threatening sources in the water system, it is imperative to understand the behavior of micropollutants in the water purification process and to find an effective way of getting rid of them. This project will explore a nanoscientific solution to address this issue. In particular, we will study interaction between micropollutants and novel water purification membranes for which carbon nanotubes serve as pores.

In our viewpoint, carbon nanotube is a molecular-scale straw. Previous findings about the interior of carbon nanotube as water passage revealed ultrafast water transport and filtration capability. Such a rare combination efficient filtration places a membrane made out of carbon nanotube pores at a unique position to address micropollutant removal in our water system. This project aims to characterize and understand the mechanisms of micropollutant separation in the carbon nanotube membranes. The membranes will be fabricated via multiscale manufacturing, followed by chemical addition and physical modification to impart micropollutant removal functions. Interaction of a series of micropollutants in aqueous solution with such a functional nano-membrane will be chemically analyzed and characterized. Understandings of the optimum water transport and filtration properties will not only lead us to basic scientific achievement but also to improvement in rational design of the nano-membrane toward better performance for micropollutants removal.          

Direktlink auf Lay Summary Letzte Aktualisierung: 21.02.2013

Verantw. Gesuchsteller/in und weitere Gesuchstellende

Mitarbeitende

Publikationen

Publikation
Novel Graphene Membranes - Theory and Application
(2016), Novel Graphene Membranes - Theory and Application.
Understanding the Interaction between Energetic Ions and Freestanding Graphene towards Practical 2D Perforation
(2016), Understanding the Interaction between Energetic Ions and Freestanding Graphene towards Practical 2D Perforation.
Carbon Nanofluidics of Rapid Water Transport for Energy Applications
(2014), Carbon Nanofluidics of Rapid Water Transport for Energy Applications, in Chemical Society Reviews .
Confined Water in Carbon Nanotubes and its Applications
(2014), Confined Water in Carbon Nanotubes and its Applications.
Temperature Gradient Chemical Vapor Deposition of Vertically Aligned Carbon Nanotubes
(2014), Temperature Gradient Chemical Vapor Deposition of Vertically Aligned Carbon Nanotubes, in Carbon.
Ultimate Permeation Across Atomically Thin Porous Graphene
(2014), Ultimate Permeation Across Atomically Thin Porous Graphene, in Science.
Carbon Micronymhaea: Graphene on Vertically Aligned Carbon Nanotubes
(2013), Carbon Micronymhaea: Graphene on Vertically Aligned Carbon Nanotubes, in Journal of Nanomaterials.
Facile Diameter Control of Vertically Aligned, Narrow Single-Walled Carbon Nanotubes
(2013), Facile Diameter Control of Vertically Aligned, Narrow Single-Walled Carbon Nanotubes, in RSC Advances.
Morphological Evolution of Fe-Mo Bimetallic Catalysts for Diameter and Density Modulation of Vertically Aligned Carbon Nanotubes
(2013), Morphological Evolution of Fe-Mo Bimetallic Catalysts for Diameter and Density Modulation of Vertically Aligned Carbon Nanotubes, in The Journal of Physical Chemistry C.
Role of Gas-phase Reactions and Thermal Gradient Control in Carbon Nanotube Synthesis
(2012), Role of Gas-phase Reactions and Thermal Gradient Control in Carbon Nanotube Synthesis, in MRS Spring Meeting.
Understanding the Interaction between Energetic Ions and Freestanding Graphene towards Practical 2D Perforation
, Understanding the Interaction between Energetic Ions and Freestanding Graphene towards Practical 2D Perforation, in Nanoscale.

Zusammenarbeit

Gruppe / Person Land
Formen der Zusammenarbeit
AIXTRON Grossbritannien und Nordirland (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
KAIST Korea, Republik (Südkorea) (Asien)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
Korea University Korea, Republik (Südkorea) (Asien)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
Porifera Vereinigte Staaten von Amerika (Nordamerika)
- Publikation
- Austausch von Mitarbeitern
- Industrie/Wirtschaft/weitere anwendungs-orientierte Zusammenarbeit
EMPA Schweiz (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern
Eawag Schweiz (Europa)
- vertiefter/weiterführender Austausch von Ansätzen, Methoden oder Resultaten
- Publikation
- Forschungsinfrastrukturen
- Austausch von Mitarbeitern

Wissenschaftliche Veranstaltungen

Aktiver Beitrag

Titel Art des Beitrags Titel des Artikels oder Beitrages Datum Ort Beteiligte Personen
Gordon Research Conference Vortrag im Rahmen einer Tagung Permeation and Selectivity of Membranes out of Low-dimensional Nanomaterials and Manufacturing 31.07.2016 Colby-Sawyer College, NH, Vereinigte Staaten von Amerika Park Hyung Gyu;
Verhandungen der Deutschen Physikalischen Gesellschaft (80th Annual Meeting of the DPG) Vortrag im Rahmen einer Tagung Evolution of mono- and bilayer graphene in chemical vapor deposition & the thinnest feasible porous membranes for ultimate mass transport 06.03.2016 Regensburg, Deutschland Park Hyung Gyu;
PACIFICHEM Vortrag im Rahmen einer Tagung Mass Transport under Graphitic Nanoconfinement, Continuous and Discontinuous 15.12.2015 Honolulu, HI, Vereinigte Staaten von Amerika Park Hyung Gyu;
University of Cincinnatti Seminar Einzelvortrag From Synthesis to Plasmonic and Nanofluidic Applications of Low Dimensional Carbon Nanomaterials 06.11.2015 Cincinnatti, OH, Vereinigte Staaten von Amerika Park Hyung Gyu;
Air Force Research Laboratory Seminar Einzelvortrag From Synthesis to Plasmonic and Nanofluidic Applications of Low Dimensional Carbon Nanomaterials 05.11.2015 Dayton, OH, Vereinigte Staaten von Amerika Park Hyung Gyu;
EuroCVD 20 Vortrag im Rahmen einer Tagung Evolution of Mono- and Bilayer Graphene in Chemical Vapor Deposition 13.07.2015 Sempach, Schweiz Park Hyung Gyu;
Graphene Week 2015 Vortrag im Rahmen einer Tagung Ultimate Mass Permeation across Two-dimensional Porous Graphene 22.06.2015 Manchester, Grossbritannien und Nordirland Park Hyung Gyu;
EWI Technology Workshop 2015 – Graphene for Desalination: the Path Forward Vortrag im Rahmen einer Tagung Ultimate Permeation across a Graphene-based Membrane 15.06.2015 Singapore, Singapur Park Hyung Gyu;
North American Membrane Society Meeting Vortrag im Rahmen einer Tagung Liquid Flow across Graphene Membranes 01.06.2015 Boston, Vereinigte Staaten von Amerika Buchheim Jakob;
European Materials Research Society Meeting Vortrag im Rahmen einer Tagung Ultimate Permeation across Atomically Thin Porous Graphene 11.05.2015 Lille, Frankreich Park Hyung Gyu;
Houston Methodist Research Institute Seminar Einzelvortrag Thinnest Feasible Membrane for Ultimate Permeation 15.04.2015 Houston, TX, Vereinigte Staaten von Amerika Park Hyung Gyu;
ECI-Advanced Membrane Technology VI: Water, Energy, and New Frontiers Vortrag im Rahmen einer Tagung Carbon Nanofluidics of Fast Water Transport under Graphitic Nanoconfinements 08.02.2015 Sicily, Italien Park Hyung Gyu;
Kookmin University Seminar Einzelvortrag Ultimate Mass Permeation across Two-Dimensional Porous Graphene 26.01.2015 Seoul, Korea, Republik (Südkorea) Park Hyung Gyu;
KAIST EEWS Seminar Einzelvortrag Ultimate Mass Permeation across Two-Dimensional Porous Graphene 15.01.2015 Daejeon, Korea, Republik (Südkorea) Park Hyung Gyu;
1st Erwin Schrödinger Symposium 2014 of the Erwin Schrödinger Society for Nanosciences Vortrag im Rahmen einer Tagung Ultimate Mass Permeations Across Two-Dimensional Porous Graphene 26.11.2014 Vienna, Österreich Park Hyung Gyu;
Membrane Science and Technology for Water – Workshop Sponsored by KAUST-OCRF Vortrag im Rahmen einer Tagung Thinnest Feasible Membrane for Ultimate Permeation 17.11.2014 Thuwal, Saudi-Arabien Park Hyung Gyu;
Department of Physics Seminar Vortrag im Rahmen einer Tagung Nanofluidic Transport under Continuous and Discontinuous Graphitic Confinements 03.11.2014 Bielefeld, Deutschland Park Hyung Gyu;
SPIE Optics + Photonics Vortrag im Rahmen einer Tagung Femtomolar Molecular Detection with CNT based SERS Substrate 17.08.2014 San Diego, Vereinigte Staaten von Amerika Park Hyung Gyu;
Gordon Research Conference Poster Ultimate Permeation Across Atomically Thin Porous Graphene 06.07.2014 New London, NH, Vereinigte Staaten von Amerika Park Hyung Gyu;
The 19th Korean Nanotube Workshop Vortrag im Rahmen einer Tagung From Synthesis to Plasmonic and Nanofluidic Applications of Low Dimensional Carbon Nanomaterials 13.02.2014 Mooju, Korea, Republik (Südkorea) Park Hyung Gyu;
HKUST Seminar Vortrag im Rahmen einer Tagung From Synthesis to Plasmonic and Nanofluidic Applicationf of Low Dimensional Carbon Nanomaterials 10.02.2014 Clear Water Bay, Kowloon, Hongkong Park Hyung Gyu;
EEWS Seminar Einzelvortrag Carbon Nanofluidics of Rapid Water Transport for Energy Applications 18.12.2013 Graduate School of Energy, Environment, Water and Sustainability, Korea Advanced Institute of Scienc, Korea, Republik (Südkorea) Park Hyung Gyu;
KIMM seminar Einzelvortrag Mass Transport in Carbon Nanotubes 18.12.2013 Korea Institute of Machinery & Materials (KIMM), Daejeon, Korea, Republik (Südkorea) Park Hyung Gyu;
The 8th International Conference on Advanced Materials and Devices (ICAMD) Vortrag im Rahmen einer Tagung Carbon Nanotubes as Nanoscale Mass Conduits 11.12.2013 Ramada Renaissance Hotel, Jeju, Korea, Republik (Südkorea) Park Hyung Gyu;
Department of Electrical Engineering Seminar Einzelvortrag Syntheses and Plasmonic and Nanofluidic Applications of Low Dimensional Carbon Nanomaterials 10.12.2013 Yonsei University, Seoul, Korea, Republik (Südkorea) Park Hyung Gyu;
The Swiss-Kyoto Symposium Vortrag im Rahmen einer Tagung Mass Transport in Graphitic Nanoenvironment 21.11.2013 ETH Zurich, Schweiz Park Hyung Gyu;
Treffpunkt Science City Vortrag im Rahmen einer Tagung Clean water 17.11.2013 ETH Zurich, Zurich, Schweiz Park Hyung Gyu;
Gwangju Institute of Science & Technology Seminar Einzelvortrag Water Transport in Carbon Nanotubes 11.10.2013 Gwangju Institute of Science & Technology, Gwangju, Korea, Republik (Südkorea) Pronk Wouter; Park Hyung Gyu;
KIST-EAWAG JOINT SYMPOSIUM Vortrag im Rahmen einer Tagung Water Transport in Carbon Nanotubes 10.10.2013 Center for Water Resource Cycle, Korea Institute of Science and Technology, Seoul, Korea, Republik (Südkorea) Pronk Wouter; Park Hyung Gyu;
Arbeitsseminar, Institut fuer Festkoerperphysik, Wintersemester 2012/13 Einzelvortrag Mass Transport in Carbon Nanotubes 24.01.2013 University of Ulm, Germany, Deutschland Park Hyung Gyu;
MP0901 3rd Annual Scientific Meeting 2012 Vortrag im Rahmen einer Tagung Introduction to Carbon Nanofluidics 11.12.2012 Helmholtz-Zentrum Berlin für Materialien und Energie, Wilhelm-Conrad-Röntgen-Campus, Berlin, Germany, Deutschland Park Hyung Gyu;
MIT Seminar (Host: Prof. Michael Strano) Vortrag im Rahmen einer Tagung Mass Transport under Graphitic Nanoconfinement 03.08.2012 Department of Chemical Engineering, MIT, Vereinigte Staaten von Amerika Park Hyung Gyu;
Carbon2012 the Annual World Conference on Carbon Vortrag im Rahmen einer Tagung Role of Gas-phase Reactions and Thermal Gradient Control in Carbon Nanotube Synthesis 19.06.2012 Krakow, Poland, Polen Park Hyung Gyu;
Swiss NanoConvention 2012 Vortrag im Rahmen einer Tagung Functional Nano-Membranes for Water Purification and Desalination: Synthesis & Optimization 23.05.2012 Beaulieu, Lausanne, Switzerland, Schweiz Park Hyung Gyu;
NATO Advanced Research Workshop: Alternative Water Resources in Arid Areas by retrieving Water from Secondary Sources Vortrag im Rahmen einer Tagung Confined Water in Carbon Nanotubes and its Applications 08.05.2012 Daniel Dead Sea Hotel, Israel, Israel Park Hyung Gyu;
2012 MRS Spring Meeting Vortrag im Rahmen einer Tagung Thermal Gradient CVD of VA-CNT Synthesis 11.04.2012 San Francisco, CA. U.S.A., Vereinigte Staaten von Amerika Park Hyung Gyu;


Veranstaltungen zum Wissenstransfer

Aktiver Beitrag

Titel Art des Beitrags Titel des Artikels oder Beitrages Datum Ort Beteiligte Personen
Treffpunkt Science City Vortrag 17.11.2013 ETH Zurich, Schweiz


Verbundene Projekte

Nummer Titel Start Förderungsinstrument
146856 Diameter Modulated, Vertically Aligned Carbon Nanotubes by Temperature Gradient Chemical Vapor Deposition 01.04.2013 Projektförderung (Abt. I-III)

Abstract

Membranes based on Carbon Nanotubes (CNT) have been developed within our consortium. Such membranes provide unique separation properties and show mass transport rates up to an order of magnitude larger than conventional membranes. CNT membranes have been investigated mainly for seawater desalination purposes. However, the pore size is still not small enough for that application. Furthermore, the energy consumption of sea water desalination can only be reduced marginally by using more efficient membranes, because the energy consumption is dominated by the thermodynamic barrier for removing the salt from water. Our present project focuses on the application of CNT membranes for the removal of micropollutants from sweet water sources. An increasing number of organic and inorganic micropollutants are found in water resources and need to be removed either at the source or at the point of intake. Having small pores comparable to nanofiltration membranes and an ultrafast water transport property, CNT membranes promise to achieve a breakthrough in energy-efficient nanofiltration at low pressures. Potentially, this would also open the possibility of applying nanofiltration in conditions where only limited energy is available and reduce the process costs substantially so that such process become viable for developing and transition countries. For the successful removal of micropollutants from water sources, it is essential to understand the micropollutants’ interaction with carbon nanotube pores during the filtration. To this end, we present an organized plan to make orchestrated efforts between experiments and theories by three different research groups: CNT membrane construction (Prof. Park, ETHZ), environmental & separation science (Dr. Pronk, Eawag), and MD simulation (Prof. Koumoutsakos, ETHZ). While water transport in CNT membranes takes place in a nearly frictionless way, minimizing interaction with the CNT wall, the important question to answer is what the transport mechanism is of different classes micropollutants, and if the membrane properties can be adjusted in such a way that optimum transport and separation properties can be achieved. In the first stage of the project, molecular dynamics (MD) models for CNT (already available in Koumoutsakos’ group) will be adapted for micropollutant separation. In parallel, a first generation of CNT membranes will be fabricated and tested for the separation of different classes of micropollutants. The resulting information on separation properties will used to identify strategies to further optimize the structure of the membranes, which can be done either by atomic layer deposition, by chemical addition of surface charges, or by a combination of both. We will use these modified membranes in a series of experiments in order to study the various effects of micropollutant properties such as electrostatic charge and hydrophobicity of the molecules. Also, separation measurements will be carried out with homologous sets of organic, acidic and inorganic compounds with increasing molecular weights, as well as a range of organic and inorganic micropollutants representing a broad spectrum of physicochemical properties. Also these data will be simulated using MD. Outcomes of the experiments and the modeling will lead to a profound understanding of mechanisms of micropollutant transport and separation. These results will be evaluated, and based on the refined MD model, the separation characteristics of hypothetical new membrane configurations will be simulated. This information will be intensively discussed within the consortium and a decision on the design of a second generation of CNT membranes will be taken. Also these membranes will be characterized experimentally and modeled using MD. Finally, also the second generation of membranes will be chemically modified to produce membranes with optimum separation characteristics. Furthermore, addition of matrix compounds found in natural waters, such as humic acids, will lead to simulation of realistic water conditions and investigation of fouling effects.
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