A5065312152- Membrane Separation and Gas Transport
- Membrane Separation Technologies
- Graphene research and applications
- Muon and positron interactions and applications
- Synthesis and properties of polymers
- Membrane-based Ion Separation Techniques
- Fuel Cells and Related Materials
- Advanced Sensor and Energy Harvesting Materials
- Graphene and Nanomaterials Applications
- Conducting polymers and applications
- Surface Modification and Superhydrophobicity
- Organic Electronics and Photovoltaics
- Polymer Surface Interaction Studies
- Nanopore and Nanochannel Transport Studies
- Covalent Organic Framework Applications
- Ammonia Synthesis and Nitrogen Reduction
- Chemical Synthesis and Characterization
- Carbon and Quantum Dots Applications
- Electrospun Nanofibers in Biomedical Applications
- Recycling and Waste Management Techniques
- Epoxy Resin Curing Processes
- Synthetic Organic Chemistry Methods
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Polymer Nanocomposite Synthesis and Irradiation
Chung Yuan Christian University
2015-2024
Yuan Ze University
1992-2019
Tao Yuan General Hospital
2018
Membrane Technology & Research (United States)
2015
Zhejiang University
2010
National Taiwan University of Science and Technology
2008
Nanya Technology (Taiwan)
1997-2006
Three diamine monomers (ethylenediamine, butylenediamine, and p-phenylenediamine) were selected for cross-linking graphene oxide (GO) to prepare composite oxide-framework (GOF) membranes through filtration using a pressure-assisted self-assembly technique. The applied separate an ethanol–water mixture by pervaporation. Unmodified GO comprised only hydrogen bonds π–π interactions, but after it with diamine, attenuated total reflectance–Fourier transform infrared X-ray photoelectron...
Abstract Separating molecules or ions with sub-Angstrom scale precision is important but technically challenging. Achieving such a precise separation using membranes requires Angstrom pores high level of pore size uniformity. Herein, we demonstrate that solute-solute can be achieved polyamide formed via surfactant-assembly regulated interfacial polymerization (SARIP). The dynamic, self-assembled network surfactants facilitates faster and more homogeneous diffusion amine monomers across the...
Graphene oxide (GO) nanosheets were engineered to be assembled into laminar structures having fast and selective transport channels for gas separation. With molecular-sieving interlayer spaces straight diffusion pathways, the GO laminates endowed as-prepared membranes with excellent preferential CO2 permeation performance (CO2 permeability: 100 Barrer, CO2/N2 selectivity: 91) extraordinary operational stability (>6000 min), which are attractive implementation of practical capture.
Abstract Water transport rate in network membranes is inversely correlated to thickness, thus superior permeance achievable with ultrathin prepared by complicated methods circumventing nanofilm weakness and defects. Conferring ultrahigh easily thicker remains challenging. Here, a tetrakis(hydroxymethyl) phosphonium chloride (THPC) monomer discovered that enables straightforward modification of polyamide composite membranes. the modified membrane ≈6 times improved, give rising permeability...
Abstract Graphene oxide (GO) nanosheets were engineered to be assembled into laminar structures having fast and selective transport channels for gas separation. With molecular‐sieving interlayer spaces straight diffusion pathways, the GO laminates endowed as‐prepared membranes with excellent preferential CO 2 permeation performance (CO permeability: 100 Barrer, /N selectivity: 91) extraordinary operational stability (>6000 min), which are attractive implementation of practical capture.
Interfacial polymerization (IP) and self-assembly are two thermodynamically different processes involving an interface in their systems. When the systems incorporated, will exhibit extraordinary characteristics generate structural morphological transformation. In this work, ultrapermeable polyamide (PA) reverse osmosis (RO) membrane with crumpled surface morphology enlarged free volume was fabricated via IP reaction introduction of self-assembled surfactant micellar system. The mechanisms...
The free-volume depth profile of asymmetric polymeric membrane systems prepared by interfacial polymerization is studied using positron annihilation spectroscopy coupled with a variable monoenergy slow beam. Significant variations S, W, and R parameters from the Doppler broadened energy spectra vs incident up to 30 keV orthopositronium lifetime intensity are observed at different doping times triethylenetetraamine (TETA) reacting trimesoyl chloride (TMC) in an on modified porous...
A series of polymer−clay nanocomposite (PCN) materials that consisted poly(methyl methacrylate) (PMMA) and layered montmorillonite (MMT) clay were prepared by effectively dispersing the inorganic nanolayers MMT in an organic PMMA matrix via situ thermal polymerization. Organic methyl methacrylate monomers first intercalated into interlayer regions organophilic hosts followed a typical free radical The as-synthesized PCN characterized infrared spectroscopy, wide-angle powder X-ray...
A technique of layer-by-layer (LbL) self-assembly was used to prepare transparent multilayered gas barrier films consisting graphene oxide (GO)/branched poly(ethylenimine) (BPEI) on a poly(ethylene terephthalate) substrate. The effect the GO suspension pH nanostructure and oxygen properties GO/BPEI film investigated. assemblies were shown be highly dependent pH. It demonstrated that prepared using with 3.5 exhibited very dense ordered structures delivered low transmission rates (the lowest...
An ultrathin Janus polyamide separating layer with opposite charges was successfully prepared through the “self-regulation” process of low temperature interfacial polymerization.
Biologically inspired TFN membranes incorporated with zwitterionic polyelectrolyte nanoparticles exhibit high perm-selectivity and anti-fouling properties.
Molecular interactions were constructed to control polymer chain conformation fabricate mixed matrix membranes with tunable free volumes, exhibiting simultaneously improved butanol permeability and selectivity.