A5084290119- Membrane Separation and Gas Transport
- Membrane Separation Technologies
- Membrane-based Ion Separation Techniques
- Advanced Sensor and Energy Harvesting Materials
- Environmental Chemistry and Analysis
- Extraction and Separation Processes
- Phosphorus and nutrient management
- Carbon Dioxide Capture Technologies
- Surfactants and Colloidal Systems
- Fuel Cells and Related Materials
- Advanced Polymer Synthesis and Characterization
- Medical Device Sterilization and Disinfection
- Chemical Synthesis and Characterization
- biodegradable polymer synthesis and properties
- Polymer Science and PVC
- Chemical Synthesis and Reactions
- Minerals Flotation and Separation Techniques
- Heat Transfer and Boiling Studies
- Healthcare and Environmental Waste Management
- Surface Modification and Superhydrophobicity
- Microbial bioremediation and biosurfactants
- High voltage insulation and dielectric phenomena
- Ionic liquids properties and applications
- Polymer crystallization and properties
- Carbon dioxide utilization in catalysis
Universitat de València
2021-2024
Universidad de Granada
2021-2022
Superhydrophobic poly(vinylidene fluoride) (PVDF) membranes were obtained by a surface treatment consisting of oxygen plasma activation followed functionalisation with mixture silica precursor (SiP) (tetraethyl-orthosilicate [TEOS] or 3-(triethoxysilyl)-propylamine [APTES]) and fluoroalkylsilane (1H,1H,2H,2H-perfluorooctyltriethoxysilane), benchmarked coated without activation. The modifications acted mainly on the surface, bulk properties remained stable. From statistical design experiments...
This study explores the influence of various additives on morphological, chemical, and thermal properties poly(vinylidene fluoride) (PVDF) membranes prepared via non-solvent induced phase separation (NIPS) technique. The use a green solvent such as triethyl phosphate (TEP) was shown to be successful. A particular focus dedicated pore formers based choline chloride–based deep eutectic solvents (DES) in combination with ethylene glycol glycerol, i.e., ChCl/EG ChCl/GLY, its benchmark...
A three-step surface modification consisting of activation with NaOH, functionalisation a silica precursor and organofluorosilane mixture (FSiT), curing was applied to poly(vinylidene fluoride) (PVDF) membrane for the recovery dissolved methane (D-CH4) from aqueous streams. Based on results statistical experimental design, main variables affecting water contact angle (WCA) were NaOH concentration FSiT ratio used. The maximum WCA modified PVDF (mPVDFmax) >140° at 5%, an 0.55 7.2%. presence...
Abstract Due to widespread use of nanoparticles in surfactant-based formulations, their release into the environment and wastewater is unavoidable toxic for biota and/or treatment processes. Because concerns over environmental impacts nanofluids, studies fate impacts, hazards, toxicities are beginning. However, interactions between surfactants biodegradability these mixtures have been little studied until now. In this work, nanofluids containing silica were valuated. The systems hydrophilic...
Characterisation of the fouling attached to PVDF membranes treating an anaerobic effluent for dissolved CH4 recovery was carried out. A commercial flat-sheet membrane and a functionalised by grafting organofluorosilanes (mPVDF) that increased its hydrophobicity were subjected continuous flux reactor in long-term operation tests (> 800 h). The cakes studied autopsy after these tests, combining staining technique, FTIR, FESEM-EDX, extraction with water NaOH solutions. Both organic inorganic...
Poly(ethylene terephthalate) (PET) waste accumulation poses significant environmental challenges due to its persistent nature and current management limitations. This study explores the effectiveness of imidazolium-based neoteric solvents [Emim][OAc] [Bmim][OAc] as catalytic co-solvents in glycolysis PET with ethylene glycol (EG). Reaction thermal kinetics showed that both ionic liquids (ILs) significantly enhanced depolymerization rate compared traditional methods. The use offered a lower...
• Vivianite nanoparticles obtained with a membrane assisted crystallisation process. Nucleation kinetic controlled by setting hydraulic conditions and properties. Micromixing promoted when using membranes for the dosing of reactive. Enhanced mixing ion collision at low liquid velocities favoured nucleation.
Abstract Due to the widespread use of nanoparticles in surfactant-based formulations, their release into environment and wastewater is unavoidable, causing a toxic effect biota and/or treatment processes. Because concerns about environmental impact nanofluids, study fate impact, hazards toxicity beginning. However, interactions between surfactants as well biodegradability mixtures have been little studied until now. In this work nanofluids containing silica were evaluated. The systems...
Novel membrane crystallisation processes resolve the mixing challenge on conventional crystallisers, by providing fixed interfacial area over which supersaturation is controlled for nucleation. Moreover, surface thought to reduce energy and encourage micromixing. In this regard, a novel membrane-assisted reactive (MARC) process was used in work dissolved phosphorous recovery form of vivianite crystals from phosphate-rich solution means dosing iron (II). To characterise role boundary layer...