A5042301291- Radioactive element chemistry and processing
- Adsorption and biosorption for pollutant removal
- Chemical and Physical Properties in Aqueous Solutions
- Analytical chemistry methods development
- Electrochemical Analysis and Applications
- Iron oxide chemistry and applications
- Extraction and Separation Processes
- Clay minerals and soil interactions
- Thermal and Kinetic Analysis
- Chemical Synthesis and Characterization
- Organometallic Compounds Synthesis and Characterization
- Analytical Chemistry and Chromatography
- Phosphorus and nutrient management
- Phytase and its Applications
- Chemical Thermodynamics and Molecular Structure
- Thermodynamic properties of mixtures
- Molecular Sensors and Ion Detection
- Inorganic and Organometallic Chemistry
- Spectroscopy and Quantum Chemical Studies
- Analytical Chemistry and Sensors
- Surfactants and Colloidal Systems
- Metal complexes synthesis and properties
- Geochemistry and Elemental Analysis
- Marine Biology and Environmental Chemistry
- Various Chemistry Research Topics
University of Palermo
2015-2024
Ospedale Cannizzaro
2005-2016
University of Palermo
2016
University of Messina
2003-2014
The acid-base properties of two bifunctional 3-hydroxy-4-pyridinone ligands and their chelating capacity towards Zn2+, an essential bio-metal cation, were investigated in NaCl aqueous solutions by potentiometric, UV-Vis spectrophotometric, 1H NMR spectroscopic titrations, carried out at 0.15 ≤ I/mol -1 1.00 288.15 T/K 310.15. A study I = mol L-1 T 298.15 K was also performed for other three Zn2+/Lz- systems, with belonging to the same family compounds. processing experimental data allowed...
In this study, hydrogels were produced using a Schiff base reaction between two hyaluronic acid derivatives: one containing aldehyde groups (HA-Ald) and the other holding diethylenetriamine with terminal amino (HA-DETA). The DETA portion promotes in situ growth, complexation, stabilization of silver nanoparticles (AgNPs), eliminating need for external reducing agents. HA-DETA HA-Ald leads to formation imine bonds, which results dynamically pH-responsive cross-linking. While capping ability...
A model of synthetic saliva (SALMO, SALiva MOdel) is proposed for its use as standard medium in vitro equilibrium and speciation studies real saliva. The concentrations come out from the literature analysis composition both chief interactions main inorganic components saliva, well urea amino acids, are taken into account on basis a complex formation model, which also considers dependence stability constants these species ionic strength temperature. These last features allow modelling...
In this paper, new information on physical and chemical properties of the widely used nanostructured Halloysite mineral are reported. Given that has a tubular structure formed by variable number wrapped layers containing Si–OH Al–OH groups, their proton binding affinity was measured at different ionic strengths media means potentiometric measurements in heterogeneous phase. One protonation constant for groups two were determined. The values increase with increasing strength all media. This...
Halloysite nanotubes were functionalized with bis-vinyl imidazolium salts and PdNPs to obtain an efficient catalyst for fine chemical synthesis.
Abstract Water is essential for humans, animals, and plants; pollutants, usually derived from anthropogenic activities, can have a serious effect on its quality. Heavy metals are significant pollutants often highly toxic to living organisms, even at very low concentrations. Among the numerous removal techniques proposed, adsorption onto suitable adsorbent materials considered be one of most promising. The objective current study was determine effectiveness halloysite nanotubes (HNT)...
Magnesium has been listed among the 30 critical raw materials by European Union. In recent years, many green and sustainable alternative Mg2+ sources have sought to satisfy EU’s demand avoid mineral ore consumption. this context, saltwork bitterns, by-products of solar sea salt production, attracted much attention thanks their high concentrations (up 80 g/L) low Ca2+ bicarbonate contents (<0.5 g/L). Although investigations on extraction from bitterns in form Mg(OH)2(s) already performed,...
Mineral extraction from seawater brines has emerged as a viable solution to reduce Europe's reliance on imported Critical Raw Materials (CRM). However, the economic viability of this approach hinges local demand for sodium chloride, primary product such processes. This study investigates potential residual brines, commonly known "bitterns," generated during solar sea-salt in traditional saltworks, an alternative source minerals. The Mediterranean region, encompassing South-European,...
Protonation constants of several natural and synthetic humates fulvates were determined by ISE-H+ potentiometry in different ionic media (alkali metal halides tetraethylammonium iodide) at strengths T = 298.15 K. Experimental data obtained previous studies (polyacrylates, polymethacrylates, polyacrylate-co-maleate) naturally occurring (alginate, humic substances) polycarboxylates also taken into account the general analysis acid−base properties polyelectrolytes. expressed as a function...
A kinetic and thermodynamic study on the sorption ability of calcium alginate gel beads towards Pd(II) ion was made in aqueous solution at different pH chloride concentrations. The experimental conditions adopted experiments were established basis a speciation Pd2+-AA system which all side reactions, such as hydrolysis Pd(II), protonation interactions ligand metal with ions ionic medium taken into account. In range 2–5 concentration 0 ⩽ CCl-/mmol L−1 10 showed good confirmed by data...