A5045125068- earthquake and tectonic studies
- Building materials and conservation
- Recycling and utilization of industrial and municipal waste in materials production
- Earthquake Detection and Analysis
- Mineral Processing and Grinding
- Minerals Flotation and Separation Techniques
- Geological and Geochemical Analysis
- Rock Mechanics and Modeling
- Bauxite Residue and Utilization
- Concrete and Cement Materials Research
- Occupational and environmental lung diseases
- Metal Extraction and Bioleaching
- Zeolite Catalysis and Synthesis
- Glass properties and applications
- CO2 Sequestration and Geologic Interactions
- Cultural Heritage Materials Analysis
- Conservation Techniques and Studies
- Extraction and Separation Processes
- Iron and Steelmaking Processes
- Advanced Surface Polishing Techniques
- Powder Metallurgy Techniques and Materials
- Mine drainage and remediation techniques
- Granular flow and fluidized beds
- Surface Roughness and Optical Measurements
- Geological formations and processes
Institute of Environmental Geology and Geoengineering
2017-2022
Bologna Research Area
2013
Institute of Nanostructured Materials
2003-2010
University of Perugia
2010
Institute of Structure of Matter
2004-2010
Istituto di Metodologie Chimiche
2010
Assing (Italy)
2003
The fabrication of enzyme-based biosensors has received much attention for their selectivity and sensitivity. In particular, laccase-based have attracted a lot interest capacity to detect highly toxic molecules in the environment, becoming essential tools fields white biotechnology green chemistry. manufacturing new, metal-free, biosensor with unprecedented reuse storage capabilities been achieved this work through application electrospray deposition (ESD) methodology as enzyme...
The aim of this work is the assessment possibility to produce geopolymeric materials for specific use in field consolidation stone or as restoration mortars, through mechanochemical activation two solid precursors, quartz and kaolin. These starting were modified by grinding at different times then degree reactivity obtained products was verified studying changes induced mechanical treatment on crystalline structure determining surface. Moreover solubility kind alkaline solutions classically...
The identified emissions of abiogenic carbon dioxide, monoxide and methane are generally attributed to volcanic activity or geochemical processes associated with thermometamorphic effects. In this paper we show another possible source emission, induced by mechanical, not thermal, stresses. We investigated the mechanochemical production dioxide when friction is applied marly-type rock studied mechanisms determining strong CO2 CH4 observed. A ring mill was used apply oriented pressure upon a...
Shear tests on quartz rocks and single crystals have been conducted to understand the possible relationship between intensity of detectable stress in fault areas energy released form electromagnetic waves range 30 KHz-1 MHz (LF–MF). For these tests, a new type piston-cylinder has developed, instrumented collect signals generated by during shear that allows measurements emissions (EMR) be performed. The data obtained indicate shear-stressed can generate LF–MF range. These represent tiny...
The type and quality of the information provided by direct analysis volcanic tuffs 1H, 29Si, 27Al NMR were investigated. At this aim, five tuffs, characterized different origin, bonding mechanism, clast composition, used as test materials. Results consistent with nature tuff matrix mineral composition obtained. While relative content Al in crystal amorphous phase was determined MAS 3Q NMR, prevalent glassy or zeolitic assessed 29Si 1H NMR. Zeolites present at levels low 15% w/w detected some...
The geochemical and engineering geological properties of the tuffs used in rock‐cut cliff tombs Etruscan necropolis Norchia were investigated to evaluate their susceptibility different weathering agents confirm origin. For first time, materials characterized by X‐ray powder diffraction (XRD), Fourier‐transform infrared spectroscopy (FT–IR), thermogravimetric analyses (TGA, DGA DTG), scanning electron microscopy (SEM–EDS) energy‐dispersive fluorescence (ED–XRF), origins confirmed. Tests...
As is well known from literature, the grinding process, which an unavoidable step in sample preparation, may strongly modify physical properties of chrysotile through amorphisation. The aim this work to establish proper milling time apply samples before accurate X-ray powder diffraction quantitative analysis. We have used RIR (reference intensity ratio) analytical method, based on measurement ratio I / s between strongest line analyte and peak a standard material, when they are thoroughly...
This study assesses the correlations between intensity of stress undergone by crystals and morphological characteristics particles fracturing products. The effects fractures on microstructure quartz are also studied. Alpha quartz, subjected to shear stress, is quickly crushed according a sequence, with total fracture length that correlated rate. generates sequence macro microstructural events, in particular localized melting phenomena, never highlighted before formation different polymorphs,...
This paper presents the results of measurements performed on α-quartz subjected to shear stress in dry conditions, understand relationship between intensity and resulting physical chemical effects. If a higher than 100 MPa is applied continuously alpha quartz crystals, they will tend lose their crystallinity, progressively reduce friction coefficient (Cof) change into low-order material, apparently amorphous under X-ray diffraction, but with structure different from silica glass. Raman Pair...