A5072471406- Building materials and conservation
- Geological and Geochemical Analysis
- Maritime and Coastal Archaeology
- Conservation Techniques and Studies
- Cultural Heritage Materials Analysis
- Geology and Paleoclimatology Research
- TiO2 Photocatalysis and Solar Cells
- Acoustic Wave Resonator Technologies
- earthquake and tectonic studies
- Advanced Photocatalysis Techniques
- Mediterranean and Iberian flora and fauna
- Catalytic Processes in Materials Science
- Archaeological and Historical Studies
- Geochemistry and Elemental Analysis
- Archaeological and Geological Studies
- Marine and fisheries research
- Coastal and Marine Management
- Transboundary Water Resource Management
- Solidification and crystal growth phenomena
- Marine and environmental studies
- Mineralogy and Gemology Studies
- Remote Sensing and LiDAR Applications
- Clay minerals and soil interactions
- Educational Research and Science Teaching
- Telecommunications and Broadcasting Technologies
Universidad de Cádiz
2001-2023
Consejo Superior de Investigaciones Científicas
2022
National Research Council
2021
Universidad de Zaragoza
1993
In this study, we develop TiO2-SiO2 nanocomposites that can be employed as photoactive coatings to create surfaces with antipollution and self-cleaning properties in urban buildings. particular, anatase titanium dioxide a high percentage of {0 0 1} facets, commonly called titania nanosheet (TNS), was used active phase. This approach allows us improve the similar sols based on P25. The obtained TNS were intensively characterized by UV–Vis diffuse reflectance absorption, X-Ray diffraction...
In many countries, construction, agriculture and livestock sectors produce emit a large amount of waste greenhouse gases, accelerating the climate change. For that, new trends policies for management are required due to high constant demand natural resources. The recent activities framed in green economy favouring reuse recycling products, so-called “Zero Waste” initiatives reduce carbon footprint, as well reduction associated energy expenditure. Among these those linked...
A comprehensive study was conducted on the synthesis of Cu-MnOx catalysts using a one-pot hydrothermal method followed by calcination step. These were thoroughly characterized techniques such as X-ray diffraction (XRD), fluorescence (XRF), N2 physisorption, photoelectron spectroscopy (XPS), temperature programmed desorption and reduction (TPD TPR), advanced transmission electron microscopy (TEM). The results revealed that Cu:Mn molar ratio precursors, Cu(NO3)2 KMnO4, had significant impact...
Abstract Nero’s Temple at El-Ashmonein archaeological site, in Minia (middle of Egypt), is considered one the most important all temples Nero. This temple dates back to 1520 BC–1075 BC New Kingdom and was reused era Nero (the Fifth Emperor Rome). The construction materials are severely decayed from surrounding environmental impacts, especially contaminated water sources. main objective this paper identify their decay by-products. To achieve them, X-ray diffraction, micro fluorescence...
Abstract Abusir is the name of an elaborate burial area in Egypt, dotted with 19 pyramids and other temples, stretching on western side Nile from south Giza Plateau to northern rim Saqqara. It seems have been created as resting site for Pharaohs dated 2494 2345 BC. The Abusir, originally spoken Busiri, means “Temple Osiris”. Over time, has become so popular because more than 60 villages now carry this name, but only one archaeological site. This paper focused its most important area,...
Carbonaceous materials have been widely used in photocatalysis to solve the drawback of rapid electron-hole recombination rate semiconductors such as titania. To further understand charge separation mechanism and its effect on ethanol photoreforming hydrogen production, two types carbon-titania hybrid material systems were studied. One them is multi-walled carbon nanotube-titania nanoparticles (MWCNT-TiO2) prepared by a sol-gel synthesis method, which according previous studies should...
Abstract The pyramids of Meroe are a significant archaeological place at the Al Bagrawiya site (Sudan) with hundreds dating back to kingdom Kush (1070 BC–550 AD). In this area, winds, heavy rains, and flooding events main geohazards that need assessments solutions because subjected an accumulation sand dunes around them risk flooding, affecting their durability. This research aims assess impacts on stability pyramid structures in addition assessing using satellite image observations, damage...
In this study, we reconstruct the recent environmental evolution of inner Cadiz Bay using sedimentary records reaching back as far AD 1700. We report lithological descriptions sediments and extensive mineralogical geochemical analyses. An extraction technique that identifies different Fe phases provides an assessment diagenetic alteration, which allows estimation original organic matter inputs to Bay. Downcore variations in Corg/N ratios, δ 13 Corg 15 N are related changes sources trophic...
Abstract. Today, coastal cities worldwide are facing major changes resulting from climate change and anthropogenic forcing, which requires adaptation mitigation strategies to be established. In this context, sedimentological archives in many Mediterranean record a multi-millennial history of environmental dynamics human adaptation, revealing long-lasting resilience. Founded by the Phoenicians around 3000 years ago, Cádiz (south-western Spain) is key example resilient city. This urban centre...
Abstract Phyllosilicate associations in hydrothermally altered fluorite ore bodies are: Li-chlorite ± pyrophyllite interstratified minerals muscovite +± kaolinite. Chlorites, the main alteration minerals, are dioctahedral, d060 = 1.489-1-490/~,, of Ia polytype. The structural formulae indicate substitution AI for Si from 0.61-0.78 atoms. total octahedral occupancy ranges 4.52-4-71 atoms, with 0.49-0-69 Li atoms per half cell unit. This composition indicates that chlorites intermediate...
The only example and reference of Ptolemaic Alexandrian tombs, with clear integrations Egyptian-style scenes decorations, is considered an endangered archaeological site due to different coastal environmental risks in Alexandria the absence maintenance. Anfushi’s Necropolis located near western harbour (Island Pharos) dates back 2nd century BC. Sea level rises, earthquakes, flooding, storminess, variations temperature, rainfall, wind are factors that have largest effect on destruction decay...
Novel data-acquisition technologies have revolutionized the study of natural systems, allowing massive collection information in situ and remotely. Merging these improves understanding complex hydrological interactions, such as those wetland–aquifer facilitates their conservation management. This paper presents combination UAV technology with water level dataloggers for a coastal temporary wetland linked to an underlying sandy aquifer influenced by tidal regime. Wetland morphology was...
The increase in demand for natural resources due to the growth of world population is generating an unprecedented waste, and unsustainability this situation has induced change towards a more environmentally friendly economy, so-called “Green Economy”. Through new policies waste management, its reuse other industrial processes being encouraged, favouring “Zero Waste” initiatives. This aims minimize emission greenhouse gases that could accelerate climate...
documents all protected areas in the world at least as large 50 km2, around 23 000 of them covering total more than 95% global surface. Distinguishing between terrestrial, marine and mixed areas, DOPA Explorer can help end users, for example, to identify those exposed highest pressure same time hosting unique threatened biodiversity. The provides a broad range consistent comparable indicators, based on reference datasets, area coverage, connectivity, species, ecosystems, ecosystem services...