A5016239928- Membrane-based Ion Separation Techniques
- Membrane Separation Technologies
- Extraction and Separation Processes
- Advanced Photocatalysis Techniques
- Solar-Powered Water Purification Methods
- Advancements in Battery Materials
- Advanced Sensor and Energy Harvesting Materials
- Electrocatalysts for Energy Conversion
- Electrospun Nanofibers in Biomedical Applications
- Catalytic Processes in Materials Science
- Ammonia Synthesis and Nitrogen Reduction
- Advanced battery technologies research
- Innovative Microfluidic and Catalytic Techniques Innovation
- Micro and Nano Robotics
- Polymer Surface Interaction Studies
- Advanced Battery Materials and Technologies
- Surface Modification and Superhydrophobicity
- MXene and MAX Phase Materials
- Water-Energy-Food Nexus Studies
- Nanopore and Nanochannel Transport Studies
- Advanced Materials and Mechanics
- Industrial Gas Emission Control
- Fuel Cells and Related Materials
- Advanced oxidation water treatment
- Hydrogels: synthesis, properties, applications
Qatar University
2017-2024
Queensland University of Technology
2015-2016
Selective oxidation of aliphatic alcohols under mild and base-free conditions is a challenging process for organic synthesis. Herein, we report one-pot the direct oxidative esterification that significantly enhanced by visible-light irradiation at ambient temperatures. The new methodology uses heterogenerous photocatalysts gold–palladium alloy nanoparticles on phosphate-modified hydrotalcite support molecular oxygen as benign oxidant. can absorb incident light, light-excited metal electrons...
Here we report a class of photocatalysts: mixed-valence vanadium oxide particles grafted onto variety supports. In these catalysts V6O13 species with mixed oxidation states (V4+ or V5+) are believed to be catalytically active sites. These successfully enable alcohol selectively produce aldehydes and ketones using O2 as the oxidant. The catalytic process is driven by visible light irradiation at room temperature and, most importantly, progresses negligible overoxidation. can even oxidize...
This study presents an experimental investigation and a parametric analysis of the applicability agricultural fertigation power generation using reverse electrodialysis-forward osmosis (RED-FO) hybrid system, with water stream discharged from fertilizer-producing plant. The results this demonstrated possibility achieving high salinity RED system utilizing high-salinity brine low-salinity ammonia solution that simulates (RO) wastewater streams released by industry. feasibility dilution for...
In this work, the spontaneous and NaBH 4 -induced reduction of chloroplatinic acid on surface Ti 3 C 2 T X MXene was investigated to synthesize a hybrid PtNP-decorated nanomaterial (MX-Pt) with potential as hydrogen evolution (HER) or oxygen reaction (ORR) catalyst properties.The initial Pt concentration, time presence additional reducing agents were varied, as-synthesized nanocomposites characterized thoroughly by XRD, EDX, SEM XPS analysis electrochemical methods.Composites containing 14...
Removal of recalcitrant organic pollutants by degradation or mineralization from industrial waste streams is continuously being explored to find viable options apply on the commercial scale. Herein, we propose a titanium nanotube array (based non-ferrous Fenton system) for successful model contaminant azo dye, methyl orange, under simulated solar illumination. Titanium arrays were synthesized anodizing film in an electrolyte medium containing water and ethylene glycol. Characterization SEM,...
Soft actuators based on hydrogel materials, which can convert light energy directly into mechanical energy, are of the utmost importance, especially with enhancements in device development. However, hunt for specific photothermal nanomaterials distinct performance remains challenging. In this study, we successfully fabricated a bilayer actuator consisting an active layer from incorporated Ti3C2Tx MXene poly(N-isopropylacrylamide) p(NIPAm)hydrogel structure and passive...
Many polymer materials have found a wide variety of applications in biomedical industries due to their excellent mechanical properties. However, the infections associated with biofilm formation represent serious problems resulting from initial bacterial attachment on polymeric surface. The development novel slippery liquid-infused porous surfaces (SLIPSs) represents promising method for prevention. These are characterized by specific microstructural roughness able hold lubricants inside....
In this paper, we propose and investigate an original approach to energy conversion based on polyzwitterionic hydrogels, which exhibit antipolyelectrolyte effect that enables them swell in salt water shrink of a different (i.e., desalinated water) salinity. The swelling shrinking processes run cyclically can move piston up or down reversibly, thus transforming the into mechanical force salinity gradient. This phenomenon makes hydrogels suitable for use smart, polymeric engine. We apply...
Catalytic oxidation of amine to imine is intense present interest since imines are important intermediates for the synthesis fine chemicals, pharmaceuticals, and agricultural chemicals. However, considerable efforts have been made develop efficient methods secondary amines imines, while little attention has until recently given primary amines, presumably owing high reactivity generated that easily dehydrogenated nitriles. Herein, we report oxidative coupling a series benzylic into...
Hydrophobic fibrous slippery liquid-infused porous surfaces (SLIPS) were fabricated by electrospinning polydimethylsiloxane (PDMS) and polystyrene (PS) as a carrier polymer on plasma-treated polyethylene (PE) polyurethane (PU) substrates. Subsequent infusion of blackseed oil (BSO) into the structures was applied for preparation SLIPS. SLIPS with infused lubricants can act repellency layer play an important role in prevention biofilm formation. The effect solutions used process investigated...
Adsorption of carbon dioxide (CO2), as well many other kinds small molecules, is importance for industrial and sensing applications. Metal-organic framework (MOF)-based adsorbents are spotlighted such An essential MOF adsorbent application a simple easy fabrication process, preferably from cheap, sustainable, environmentally friendly ligand. Herein, we fabricated novel structural, thermally stable with fluorescence properties, namely Zn [5-oxo-2,3-dihydro-5H-[1,3]-thiazolo...
Abstract We introduce a simple approach to fabricate fluorescent multivalent metal ion-free alginate hydrogels, which can be produced using carbon dots accessible from natural sources (citric acid and L-cysteine). Molecular fluorophore 5-oxo-2,3-dihydro-5H-[1,3]-thiazolo[3,2-a] pyridine-3,7-dicarboxylic (TPDCA), is formed during the synthesis of dots, identified as key segment for crosslinking hydrogels. The happens through dynamic complexation carboxylic groups TPDCA cages along with sodium...
In this study, α-LiAlO2 was investigated for the first time as a Li-capturing positive electrode material to recover Li from aqueous resources. The synthesized using hydrothermal synthesis and air annealing, which is low-cost low-energy fabrication process. physical characterization showed that formed an phase, electrochemical activation revealed presence of AlO2* deficient form can intercalate Li+. AlO2*/activated carbon pair selective capture Li+ ions when concentrations were between 100...
This study proposes an integrated system that combines a photoelectrochemical (PEC) and forward osmosis (FO) in tandem operation to address water, energy, food (WEF) scarcity. The utilizes combination of ammonium sulfite sulfate solution represent wet flue gas desulfurization products from the ammonia scrubbing process commonly used oil producing countries. Under simulated sunlight, sulfurous PEC is oxidized at reduced titania nanotube array (TNA) working electrode produce hydrogen, clean...