A5006360022- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Fuel Cells and Related Materials
- Solar-Powered Water Purification Methods
- Electrohydrodynamics and Fluid Dynamics
- Advanced Sensor and Energy Harvesting Materials
- Graphene and Nanomaterials Applications
- 3D Printing in Biomedical Research
- Electrospun Nanofibers in Biomedical Applications
- Microbial Fuel Cells and Bioremediation
- Minerals Flotation and Separation Techniques
- Microplastics and Plastic Pollution
- Energy Harvesting in Wireless Networks
- Carbon and Quantum Dots Applications
- Recycling and Waste Management Techniques
- Polymer Surface Interaction Studies
City University of Hong Kong
2019-2024
Owing to its 100% theoretical salt rejection capability, membrane distillation (MD) has emerged as a promising seawater desalination approach address freshwater scarcity. Ideal MD requires high vapor permeate flux established by cross-membrane temperature gradient (∆T) and excellent durability. However, it's difficult maintain constant ∆T owing inherent heat loss at feedwater side resulting from continuous water-to-vapor transition prevent wetting transition-induced fouling scaling. Here, we...
Photothermal desalination is a promising approach for seawater purification by harvesting solar energy. Titanium carbide (Ti3C2Tx MXene) membranes have been regarded as potential materials photothermal virtue of their excellent light-to-heat conversion. However, achieving well-balanced synergy between high evaporation rate and good salt resistance remains significant challenge due to limited absorption inferior stability. Herein, we report self-assembled flexible porphyrin-Ti3C2Tx MXene...
Sub-10 µm microplastics (MPs) in aquatic environments pose significant ecological and health risks due to their mobility potential carry harmful microcontaminants. Our effluent analysis from a Hong Kong Sewage Treatment Works shows that traditional treatment often fails effectively remove these MPs. These small-sized MPs are commonly neglected challenges accurate quantification, analysis, removal. This study introduces nanobubble-assisted flotation process enhances the removal efficiency of...
Membrane distillation (MD) is a promising technology for the treatment of high salinity wastewater using hydrophobic membrane; however, occurrence wetting due to surfactants in polluted or low surface tension liquid impedes MD application. Common monitoring approaches, such as conductivity and flux measurement, cannot explain phenomenon that occurs during process detail. Recently, impedance spectroscopy has been proposed early detection, it depends on change water/air composition membrane...
Wetting of hydrophobic membranes is considered to be one the major limitations that must overcome further development membrane distillation technology. Low surface tension liquids can induce wetting, which significantly affect permeate conductivity after complete wetting pores. In this study, a thin conductive polyaniline (PANI) layer was sandwiched between two nonconductive polyvinylidene fluoride (PVDF) layers by phase inversion method. The PANI-PVDF then electrosprayed with...
This paper presents a polyamide (PA) thin film composite (TFC) forward osmosis membranes with high chlorine-resistant and permeability through interfacial polymerisation employing novel monomers distinct stable sulfonamide structures. Three different were produced, commonly having substrate layer made the phase inversion approach PA piperazine (PIP) tricarbonyl chloride (TMC) while differing in additive chemical used to build upper layers (sulfathiazole (ST), 4-aminobenzenesulfonamide...