A5072752584- High-pressure geophysics and materials
- Geological and Geochemical Analysis
- Crystal Structures and Properties
- Recycling and utilization of industrial and municipal waste in materials production
- Mineralogy and Gemology Studies
- Cultural Heritage Materials Analysis
- Recycling and Waste Management Techniques
- Glass properties and applications
- Building materials and conservation
- Geochemistry and Geologic Mapping
- Geomagnetism and Paleomagnetism Studies
- Coal and Its By-products
- Spectroscopy Techniques in Biomedical and Chemical Research
- earthquake and tectonic studies
- Heavy metals in environment
- Asphalt Pavement Performance Evaluation
- Pigment Synthesis and Properties
- Geochemistry and Elemental Analysis
- Extraction and Separation Processes
- Advanced ceramic materials synthesis
- Innovative concrete reinforcement materials
- Infrastructure Maintenance and Monitoring
- Municipal Solid Waste Management
- Occupational and environmental lung diseases
- Concrete and Cement Materials Research
University of Parma
2016-2025
Cambridge University Press
2018
Serpentinites are rocks, often used in buildings, formed large extent by minerals of the serpentine group: chrysotile, antigorite, lizardite, and polygonal serpentine. The fibrous type (e.g. chrysotile) group minerals, along with several amphibole varieties actinolite tremolite), major components asbestos family. exposure to fine powder is linked diseases such as pleural mesothelioma asbestosis. identification main group, laminated or fibrous, becomes an issue great interest for public...
After cellulose, lignin is the most abundant plant-derived polymer in nature. It provides mechanical support to plants, but it has also a defense role against pests and diseases, thanks antioxidant, bactericidal, antifungal properties, deriving from its polyphenolic Huge quantities of technical lignins are obtained during several industrial processes they actually represent waste paper pulp bioethanol industry. Although last decades many efforts have been directed obtain valorization fields...
Abstract Plagioclase undergoes complex exsolution and ordering phase transition processes during their evolution in nature, this has hindered attempts to define simple trends relating the major peaks of Raman spectra with composition. Here, peak position linewidth features have been calibrated for a set 20 plagioclases, spanning from albite anorthite composition, symmetry states that were already well characterized. Point group is most important factor determining behaviour though C , I P...
Introduction: Bottom ashes (BA) from municipal solid waste incinerators (MSWIs) are currently classified by the European Waste Catalogue as industrial non-hazardous waste. To promote their reuse, identification and characterization of heavy metal-bearing phases (both glass minerals), well weathering behavior, must be addressed for what concern chemical composition, mineralogical phases, in high concentrations pollutants’ mobility. An important point to noted is whether results a given plant...
The Raman spectra of eight clinopyroxenes synthesized along the join diopside-clinoenstatite (Di- Cen, CaMgSi2O6-Mg2Si2O6) were measured. splitting 670 cm-1 mode Ag symmetry, observed in composition Di52En48 to clinoenstatite, was interpreted as evidence a C2/c-P21/c phase transition. transition also revealed by deviation from linear dependence peak position vs. and appearance several new peaks samples richer clinoenstatite.
Albite is one of the most common minerals in Earth's crust, and its polymorphs can be found rocks with different cooling histories. The characteristic spectrum vibration albite mineral reflects structural Si/Al ordering. In this study, we report on comparison between Raman spectra measured a natural fully ordered (as deduced basis single‐crystal X‐ray diffraction data) ‘low albite’, NaAlSi 3 O 8 , those calculated at hybrid Hartree–Fock/density functional theory level by employing WC1LYP...
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Fault-related diagenesis critically influences the petrophysical and mechanical properties of fault zones, affecting fluid circulation seismicity in upper crust. Questions remain about composition mineralizing fluids role architecture controlling distribution hydrothermal silicification. This study addressed these questions by establishing source documenting spatial variability synkinematic products along Kornos-Aghios Ioannis (Lemnos, Greece). The is an ∼10-km-long extensional system that...
The Raman spectra of Ge-clinopyroxenes CaM2+Ge2O6 (M2+ = Mg, Mn, Fe, Co, Ni, Zn), general formula M2M1T2O6, are reported for the first time. Their spectral features discussed in comparison with corresponding Si-pyroxenes. vibrational wavenumbers germanates may be roughly obtained by a scale factor about ~0.8 those silicates, due to Ge-Si mass difference. main peaks germanate at ~850 and ~540 cm−1 related Ge-O tetrahedral stretching chain bending, respectively; minor between 200 400 ascribed...
Bottom Ashes from Municipal Solid Waste Incinerators and to Energy plants represent an interesting source of secondary raw materials for many applications, like urban mining inclusion in concrete, road pavement. However, may contain potentially toxic elements, whose actual toxicity depends essentially on their oxidation state mineralogical environment. For this reason, a representative sample bottom ashes Parma plant has been selected investigate the chemical speciation Cr, Ni, Pb, Co, Zn Cu...
Abstract The crystal chemistry of a natural, gem-quality, blue-grey Zn-rich spinel from Jemaa, Kaduna State, Nigeria, was studied using electron microprobe, single-crystal X-ray diffraction, optical absorption and Raman spectroscopies. composition the approaches gahnite endmember (ZnAl 2 O 4 ), ∼94 mol.%, with remainder being dominated by hercynite component (FeAl ). unit-cell dimension is 8.0850(3) Å tetrahedral octahedral bond distances are determined as T –O 1.9485(6) M 1.9137(3) Å....
Introduction: Bottom ash (BA) constitutes a significant by-product obtained during the incineration of municipal solid waste in waste-to-energy (WtE) plants. BA is heterogeneous material made different fractions, glass, minerals, metals, and unburned residual organic matter. Due to non-hazardous nature material, can be effectively recycled, becoming valuable resource. However, displays high content potentially toxic elements (PTEs) within its finer grain size. The presence these raises...
The effect of the substitution Ca with Co, on phase transition and extension miscibility gap, was studied to model general mechanism transitions solid solutions in (Ca,M2+)M2+Si2O6 pyroxenes. Eleven pyroxenes composition Ca1-xCo1+xSi2O6, (0 ≤ x 1) were therefore synthesized by piston cylinder at P = 3 GPa, T between 1100 1350 °C. samples characterized SEM-EDS, XRD powder diffraction, TEM. results compared those Ca-Fe Ca-Mg diagram Ca-Co is similar that ones, a wide asymmetric higher...
A laboratory investigation evaluates the potential of using stabilized fly ash from municipal solid waste incinerators (MSWIs) as a filler in asphalt mixtures. Nine mixtures composed same aggregate gradation and three different binders fillers (limestone two ashes) are prepared tested. chemical mineralogical characterizes before after mixing with binders. The behavior mastics at low temperatures is estimated by bending beam rheometer (BBR) test. mixtures' cracking behaviors intermediate...
The crystal structure of three C2/c clinopyroxenes with composition (Ca0.8Co0.2)CoSi2O6, (Ca0.6Co0.4) CoSi2O6 and (Ca0.4Co0.6)CoSi2O6 was refined down to R4σ = 2.6% by single-crystal X-ray diffraction. crystals were synthesized at P 3 GPa cooling from 1500 1200 °C in a piston-cylinder apparatus. At the end refinement cycles, electron density residuals (up 2.1 e-) observed close M2 site related splitting Ca Co polyhedron two subsites M2′. Split significantly improved agreement factor...
The speciation of potentially toxic elements (PTE) in bottom ashes from municipal solid waste incineration (MSWI) and their relationship with grain size is investigated. proposed enrichment several potential lower sized grains discussed, comparing the literature new data on Parma’s incinerator. Results X-ray fluorescence spectrometry (XRF), SEM-EDS, XRD analyses different show (1) a positive Si-trend, correlated few lithophile elements, such as Zr Rb. In Parma, Al, K, Mg, Fe also correlate...