A5027568129- Membrane Separation Technologies
- Insect and Arachnid Ecology and Behavior
- Polymer Surface Interaction Studies
- Electrohydrodynamics and Fluid Dynamics
- Quantum Dots Synthesis And Properties
- Membrane-based Ion Separation Techniques
- Metal-Organic Frameworks: Synthesis and Applications
- Mineral Processing and Grinding
- Covalent Organic Framework Applications
- Photonic Crystals and Applications
- Advanced Polymer Synthesis and Characterization
- Membrane Separation and Gas Transport
- Advanced Sensor and Energy Harvesting Materials
- Block Copolymer Self-Assembly
- Aerosol Filtration and Electrostatic Precipitation
- Plant and animal studies
- Groundwater flow and contamination studies
The University of Texas at Austin
2021-2025
Mineral scale formation on membrane surfaces is a significant challenge in reverse osmosis water purification. Laboratory fouling experiments are typically run such that the transmembrane pressure (TMP) fixed, and permeate flux decreases over time as scales accumulate surface. However, this change means hydrodynamic conditions at surface continuously changing, which could affect crystallization foulant deposition processes. Operating under constant conditions, contrast, advantageous because...
Understanding how insect‐derived biomaterials interact with light has led to new advances and interdisciplinary insights in entomology physics. Leafhoppers are insects that coat themselves highly ordered biological nanostructures known as brochosomes. Brochosomes thought provide a range of protective properties leafhoppers, such hydrophobicity antireflectivity, which inspired the development synthetic brochosomes mimic their structures. Despite recent progress, high antireflective brochosome...
Membrane fouling remains a key challenge for membrane separations. Hydrophilic surface modification can mitigate irreversible foulant deposition, thereby improving resistance. We report new hydrophilic coatings based on 1,4-benzoquinone and various commercially available polyetheramines. These coatings, prepared from Jeffamine EDR 148, poly(benzoquinone-Jeffamine 148) (p(BQ-EDR 148)), were used to modify polysulfone (PS) ultrafiltration membranes. In experiments using an oil/water emulsion,...
Abstract Pressure‐sensitive‐adhesives (PSAs) are pervasive in electronic, automobile, packaging, and biomedical applications due to their ability stick numerous surfaces without undergoing chemical reactions. These materials typically synthesized by the free radical copolymerization of alkyl acrylates acrylic acid, leading an ensemble polymer chains with varying composition molecular weight. Here, reversible addition−fragmentation chain‐transfer (RAFT) copolymerizations a semi‐batch reactor...
Studies of reverse osmosis systems often use Sherwood number relations to estimate the average solute concentration at membrane surface. Feed spacers, however, generate regions accumulation in which local far exceeds average. Predicting these is important avoid mineral scaling. To date, such have been primarily investigated using computational fluid dynamics (CFD) simulations that are computationally expensive. Thus motivated, we develop a reduced model replaces simulation feed velocity...
Understanding how insect-derived biomaterials interact with light has led to new advances and interdisciplinary insights in entomology physics. Leafhoppers are insects that coat themselves highly ordered biological nanostructures known as brochosomes. Brochosomes thought provide a range of protective properties leafhoppers, such hydrophobicity anti-reflectivity, which inspired the development synthetic brochosomes mimic their structures. Despite recent progress, ultra-high anti-reflective...