A5103025251- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Fuel Cells and Related Materials
- Calcium Carbonate Crystallization and Inhibition
- Nanopore and Nanochannel Transport Studies
- Layered Double Hydroxides Synthesis and Applications
- Microplastics and Plastic Pollution
- Geochemistry and Elemental Analysis
- Synthesis and properties of polymers
- Environmental remediation with nanomaterials
- Microbial Community Ecology and Physiology
- Electrohydrodynamics and Fluid Dynamics
- biodegradable polymer synthesis and properties
- Microbial Fuel Cells and Bioremediation
- Extraction and Separation Processes
- Adsorption and biosorption for pollutant removal
- Toxic Organic Pollutants Impact
- Analytical chemistry methods development
- Advanced Cellulose Research Studies
- Polymer Nanocomposites and Properties
- Polyoxometalates: Synthesis and Applications
- Electrowetting and Microfluidic Technologies
- Polymer crystallization and properties
- Bacterial biofilms and quorum sensing
- Flame retardant materials and properties
Yale University
2020-2025
Nankai University
2024-2025
Ministry of Education
2025
Beijing National Laboratory for Molecular Sciences
2013-2014
Chinese Academy of Sciences
2013-2014
University of Chinese Academy of Sciences
2013-2014
Understanding the salt–water separation mechanisms of reverse osmosis (RO) membranes is critical for further development and optimization RO technology. The solution-diffusion (SD) model widely used to describe water salt transport in RO, but it does not intricate molecules ions through membrane. In this study, we develop an ion referred as solution-friction model, by rigorously considering partitioning interactions among water, ions, Ion membrane described extended Nernst–Planck equation,...
Thin-film composite reverse osmosis membranes have remained the gold standard technology for desalination and water purification nearly half a century. Polyamide films offer excellent permeability salt rejection but also suffer from poor chlorine resistance, high fouling propensity, low boron rejection. We addressed these issues by molecularly designing polyester thin-film membrane using co-solvent-assisted interfacial polymerization to react 3,5-dihydroxy-4-methylbenzoic acid with trimesoyl...
Manganese(III/IV) oxide minerals are known to spontaneously degrade organic pollutants in nature. However, the kinetics too slow be useful for engineered water treatment processes. Herein, we demonstrate that nanoscale Mn3O4 particles under spatial confinement (down 3–5 nm) can significantly accelerate of pollutant degradation, nearly 3 orders magnitude faster compared same reaction unconfined bulk phase. We first employed an anodized aluminum scaffold with uniform channel dimensions...
Remediation of large and dilute plumes groundwater contaminated by oxidized pollutants such as chromate is a common difficult challenge. Herein, we show that in situ formation FeS nanoparticles (using dissolved Fe(II), S(-II), natural organic matter nucleating template) results uniform coating aquifer material to create regenerable reactive zone mitigates Cr(VI) migration. Flow-through columns packed with quartz sand are amended first an Fe2+ solution then HS– form nano-FeS on the sand,...
A novel strategy has been developed to prepare poly(ethylene terephthalate) nanocomposites with a strong UV-shielding function. The nanoscale dispersion of UV-absorber intercalated layered double hydroxides (LDHs), and combination the chemical absorption physical blocking UV rays may account for greatly enhanced ability, which remarkably depends on interlayer anions, content platelet size LDHs.
Salt permeability of polyamide reverse osmosis (RO) membranes has been shown to increase with increasing feed salt concentration. The dependence on concentration attributed the variation partitioning However, studies using various analytical techniques revealed that (total ion) coefficient decreases concentration, in marked contrast observed permeability. Herein, we thoroughly investigate total ion and co-ion coefficients solution pH. is measured a quartz crystal microbalance (QCM), while...
Ceramic membranes are a promising alternative to polymeric for selective separations, given their ability operate under harsh chemical conditions. However, current fabrication technologies fail construct ceramic suitable molecular separations. Herein, we demonstrate molecular-level design of thin-film composite with tunable subnanometer pores precise sieving. Through burning off the distributed carbonaceous species varied dimensions within hybrid aluminum oxide films, created Specifically,...
Despite the widespread use of reverse osmosis (RO) membranes in water desalination, role solute-membrane interactions solute transport remains complex and relatively not well understood. This study elucidates relationship between electrostatic permeability RO membranes. The salt neutral molecules through charged polyamide (PA) uncharged cellulose triacetate (CTA) was examined. Results show that rejection PA membrane are highly dependent on solution pH due to variations charge density Donnan...
The surface of polyamide reverse osmosis (RO) membranes which regulates interface-dominated phenomena, such as partitioning and fouling, is the one facing feed during operation. However, opposite selective layer, permeate in contact with polysulfone porous support, commonly analyzed quartz crystal microbalance (QCM) measurements due to limitations state-of-the-art transfer methodologies. Such on back cannot be generalized because layer chemically morphologically asymmetric. Herein, we...
This study demonstrates that environmental weathering processes differentially affect the aggregation behavior of nanoplastics, providing important insights into risk assessment nanoplastics contamination.
This study demonstrates that PBDEs attached to soil nanoparticles can be highly mobile in saturated porous media, providing important insights on risk assessment of contamination.