A5037834509- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Fuel Cells and Related Materials
- Nanopore and Nanochannel Transport Studies
- Membrane Separation and Gas Transport
- Solar-Powered Water Purification Methods
- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Graphene research and applications
- Surface Modification and Superhydrophobicity
- Molecular Communication and Nanonetworks
- Advanced Battery Technologies Research
- Nanoparticles: synthesis and applications
- Water and Wastewater Treatment
- Microfluidic and Bio-sensing Technologies
- Electrohydrodynamics and Fluid Dynamics
- Graphene and Nanomaterials Applications
- Energy Harvesting in Wireless Networks
Chinese Academy of Sciences
2019-2021
Suzhou Institute of Nano-tech and Nano-bionics
2019-2021
Nanyang Technological University
2011-2019
Forward osmosis (FO) has received considerable interest for water- and energy-related applications in recent years. FO does not require an applied pressure is believed to have a low fouling tendency. However, major challenge the lack of high performance membranes. In current work, novel nanofiltration (NF)-like membranes with good magnesium chloride retention were synthesized using layer-by-layer (LbL) assembly. The membrane substrate was tailored (high porosity, finger-like pores, thin...
Transport of water, solutes, and contaminants through a thin film composite (TFC) membrane is governed by the intrinsic structure its polyamide separation layer. In this work, we systematically characterized nanoscale four commercial TFC membranes to reveal underlying structure–property relationship. For all membranes, their layers have an thickness in range 10–20 nm, which order magnitude smaller than more frequently reported apparent roughness protuberances due ubiquitous presence...
Forward osmosis (FO) is attracting increasing interest for its potential applications in desalination. In FO, permeation of contaminants from feed solution into draw through the semipermeable membrane can take place simultaneously with water diffusion. Understanding transport and rejection by FO has significant technical implications way to separate clean diluted solution. this study, a model was developed predict boron flux operation. A strong agreement between modeling results experimental...
Both salt rejection and pressure-bearing properties of the conventional thin film composite (TFC) polyamide reverse osmosis (RO) membrane are easily weakened at high temperature. In order to improve temperature resistance, in this work, a TFC RO with covalent organic frameworks (COFs) intermediate layer was prepared. Firstly, COFs decorated on polyether sulfone (PES) support by unidirectional diffusion method further modified for shrinking micropore via chemical crosslinking reaction...
Charge-gated channels are nature's solutions for transport of water molecules and ions through aquaporins in biological membranes while excluding undesired substances. The same mechanism has good potentials to be adopted pressure or electrically driven membrane separation processes. Herein, we report highly charged nanochannels created polyelectrolyte (PE) intercalated amine reduced graphene oxide (PE@ArGO membrane). PE@ArGO membrane, with a rejection layer ∼160 nm thickness, features...
For the first time, forward osmosis (FO) was performed using a porous membrane with an ultrafiltration (UF)-like rejection layer and its feasibility for high performance FO filtration demonstrated. Compared to traditional membranes dense layers, UF-like 2 orders of magnitude more permeable. This gave rise respectable water flux even at ultralow osmotic driving force, example, 7.6 L/m(2).h pressure merely 0.11 bar (achieved by 0.1% poly(sodium 4-styrene-sulfonate) draw solution). The applied...
In this paper, we used an octadecylamine functionalized graphene oxide (ODA@GO) to induce the confined growth of a polyamide nanofilm in organic and aqueous phase during interfacial polymerization (IP). The ODA@GO, fully dispersed phase, was applied as physical barrier confine amine diffusion therefore limiting IP reaction close interface. morphology crosslinking degree PA could be controlled by doping different amounts ODA@GO (therefore adjusting resistance). At standard seawater...
In the current study, poly (amide-urethane) (PAUt) membranes were successfully fabricated by interfacial polymerization of m-phenylenediamine (MPD) and 5-choroformyloxyisophaloyl chloride (CFIC) on polysulfone substrates. Two modification methods based layer-by-layer assembly applied to modify PAUt membrane surface achieve antifouling property: 1. Chitosan (CS) was directly self-assembled (i.e., PAUt-CS); 2. polydimethyl diallyl ammonium (PDDA), polystyrene sulfonate (PSS), CS successively...