Davide Vione

Last updated
Davide Vione
Born (1974-10-14) 14 October 1974 (age 49)
Moncalieri, Italy
NationalityItalian
Alma mater University of Torino
Occupation(s) Chemist, academic and author
Scientific career
Fields Environmental chemistry
InstitutionsUniversity of Torino

Davide Vione (born 14 October 1974) is an Italian chemist and academic. He is a professor of chemistry at the University of Torino. [1] His research is focused on photochemistry of surface and atmospheric waters, heterogeneous photocatalysis and other advanced oxidation processes for water treatment. Vione has authored over 350 publications, has been cited over 12,000 times. [2]

Contents

He is the author of two books: Photobiogeochemistry of Organic Matter: Principles and Practices in Water Environments, and Surface Water Photochemistry. [3] He also developed a software, named APEX (Aqueous Photochemistry of Environmentally-occurring Xenobiotics), which predicts half-life times and phototransformation kinetics of pollutants as a function of water chemistry and depth, including the photochemical formation of intermediates. [4]

Vione is associated to the European Association of Chemistry and the Environment, and has served as its president from 2016 and 2017. [5]

Education

Vione studied at the University of Torino, and received his master's degree in chemistry in 1998, and a Doctoral degree in chemistry in 2001, under the supervision of Ezio Pelizzetti. His Ph.D. dissertation is titled "Transformations of Aromatic Compounds in the Presence of Nitrate and Nitrite in Aqueous Systems." [6]

Career

Following his work as assistant professor from 2002 till 2011, Vione held appointment as an associate professor in the Department of Chemistry at the University of Torino in 2011, and became a professor of chemistry in 2018. [1]

Research

Vione has focused his research on photochemistry of surface and atmospheric waters, [7] and on advanced oxidation processes for water treatment. [8] He has been project coordinator within a Marie Curie fellowship as well as the Scientific and Technological Co-operation Agreement between Italy and Romania, and has taken part in several research projects, including PNRA - Antarctica Project, CNR - Agenzia 2000, PRIN 2003, PRIN 2007, [9] and PRIN 2009, among others. [10]

Vione wrote a review paper in 2015 where he discussed the role of hydroxyl radical in different environmental compartments and in laboratory systems. He also highlighted the impact of the reactivity of indoor hydroxyl radicals in terms of health and well-being as a great concern of the present time. [11] Furthermore, he described sources and sinks of hydroxyl radicals upon irradiation of natural lake water and groundwater samples, proportionally to the nitrate levels. [12] While demonstrating photocatalytic transformation of phenol on TiO2 and on TiO2/F, he contributed to the determination of the usage of alcohols as a diagnostic tool for the analysis of the photocatalytic mechanism. [13] He also investigated photodegradation processes of the antiepileptic drug carbamazepine in the context of estuarine waters, where acridine was detected as a major photodegradation intermediate of carbamazepine, [14] and investigated the connections between photochemical reactions in surface waters and climate change. [15]

Vione explored photonitration processes under different conditions, and determined several pathways in the formation of the aromatic nitroderivatives. [16] He also studied Fenton-based oxidation, electro-oxidation, and homogeneous advanced oxidation processes, and discussed applications of advanced oxidation processes (AOPs) in terms of removing organics from produced water. [17] [18] Furthermore, his research highlights ZVI-Fenton as a suitable technique to achieve effective degradation of ibuprofen and phenol under several operational conditions. [19] In his study, he also provided insights into mechanisms of sunlight-mediated and dark production of hydroxyl radicals in lake waters. [20]

Awards and honors

Bibliography

Books

Selected articles

Related Research Articles

<span class="mw-page-title-main">Aromatic compound</span> Compound containing rings with delocalized pi electrons

Aromatic compounds, also known as "mono- and polycyclic aromatic hydrocarbons", or arenes, are organic compounds containing one or more aromatic rings. The word "aromatic" originates from the past grouping of molecules based on odor, before their general chemical properties were understood. The current definition of aromatic compounds does not have any relation to their odor. Aromatic compounds are now defined as cyclic compounds satisfying Hückel's Rule.

<span class="mw-page-title-main">Phenols</span> Chemical compounds in which hydroxyl group is attached directly to an aromatic ring

In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl groups (−OH) bonded directly to an aromatic hydrocarbon group. The simplest is phenol, C
6H
5OH. Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the molecule.

<span class="mw-page-title-main">Lignin</span> Structural phenolic polymer in plant cell walls

Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity and do not rot easily. Chemically, lignins are polymers made by cross-linking phenolic precursors.

<span class="mw-page-title-main">Methyl violet</span> Chemical compound

Methyl violet is a family of organic compounds that are mainly used as dyes. Depending on the number of attached methyl groups, the color of the dye can be altered. Its main use is as a purple dye for textiles and to give deep violet colors in paint and ink. It is also used as a hydration indicator for silica gel. Methyl violet 10B is also known as crystal violet and has medical uses.

<span class="mw-page-title-main">Hydroxyl radical</span> Neutral form of the hydroxide ion (OH−)

The hydroxyl radical is the diatomic molecule •
OH. The hydroxyl radical is very stable as a dilute gas, but it decays very rapidly in the condensed phase. It is pervasive in some situations. Most notably the hydroxyl radicals are produced from the decomposition of hydroperoxides (ROOH) or, in atmospheric chemistry, by the reaction of excited atomic oxygen with water. It is also important in the field of radiation chemistry, since it leads to the formation of hydrogen peroxide and oxygen, which can enhance corrosion and SCC in coolant systems subjected to radioactive environments. The unpaired electron of the hydroxyl radical is officially represented by a middle dot, •, beside the O.

<span class="mw-page-title-main">Actinometer</span> Instrument for measuring thermal radiation

An actinometer is an instrument that can measure the heating power of radiation. Actinometers are used in meteorology to measure solar radiation as pyranometers, pyrheliometers and net radiometers.

Fenton's reagent is a solution of hydrogen peroxide (H2O2) and an iron catalyst (typically iron(II) sulfate, FeSO4). It is used to oxidize contaminants or waste water as part of an advanced oxidation process. Fenton's reagent can be used to destroy organic compounds such as trichloroethylene and tetrachloroethylene (perchloroethylene). It was developed in the 1890s by Henry John Horstman Fenton as an analytical reagent.

<span class="mw-page-title-main">Photocatalysis</span> Acceleration of a photoreaction in the presence of a catalyst

In chemistry, photocatalysis is the acceleration of a photoreaction in the presence of a photocatalyst, the excited state of which "repeatedly interacts with the reaction partners forming reaction intermediates and regenerates itself after each cycle of such interactions." In many cases, the catalyst is a solid that upon irradiation with UV- or visible light generates electron–hole pairs that generate free radicals. Photocatalysts belong to three main groups; heterogeneous, homogeneous, and plasmonic antenna-reactor catalysts. The use of each catalysts depends on the preferred application and required catalysis reaction.

In atmospheric chemistry, NOx is shorthand for nitric oxide and nitrogen dioxide, the nitrogen oxides that are most relevant for air pollution. These gases contribute to the formation of smog and acid rain, as well as affecting tropospheric ozone.

<span class="mw-page-title-main">Photodegradation</span> Alteration of materials by light

Photodegradation is the alteration of materials by light. Commonly, the term is used loosely to refer to the combined action of sunlight and air, which cause oxidation and hydrolysis. Often photodegradation is intentionally avoided, since it destroys paintings and other artifacts. It is, however, partly responsible for remineralization of biomass and is used intentionally in some disinfection technologies. Photodegradation does not apply to how materials may be aged or degraded via infrared light or heat, but does include degradation in all of the ultraviolet light wavebands.

<span class="mw-page-title-main">UV filter</span> Camera parts, features and technologies

UV filters are compounds, mixtures, or materials that block or absorb ultraviolet (UV) light. One of the major applications of UV filters is their use as sunscreens to protect skin from sunburn and other sun/UV related damage. After the invention of digital cameras changed the field of photography, UV filters have been used to coat glass discs fitted to camera lenses to protect hardware that is sensitive to UV light.

Photoprotection is the biochemical process that helps organisms cope with molecular damage caused by sunlight. Plants and other oxygenic phototrophs have developed a suite of photoprotective mechanisms to prevent photoinhibition and oxidative stress caused by excess or fluctuating light conditions. Humans and other animals have also developed photoprotective mechanisms to avoid UV photodamage to the skin, prevent DNA damage, and minimize the downstream effects of oxidative stress.

Advanced oxidation processes (AOPs), in a broad sense, are a set of chemical treatment procedures designed to remove organic (and sometimes inorganic) materials in water and wastewater by oxidation through reactions with hydroxyl radicals (·OH). In real-world applications of wastewater treatment, however, this term usually refers more specifically to a subset of such chemical processes that employ ozone (O3), hydrogen peroxide (H2O2) and/or UV light.

<span class="mw-page-title-main">Photo-oxidation of polymers</span>

In polymer chemistry photo-oxidation is the degradation of a polymer surface due to the combined action of light and oxygen. It is the most significant factor in the weathering of plastics. Photo-oxidation causes the polymer chains to break, resulting in the material becoming increasingly brittle. This leads to mechanical failure and, at an advanced stage, the formation of microplastics. In textiles the process is called phototendering.

1-Naphthol, or α-naphthol, is a fluorescent organic compound with the formula C10H7OH. It is a white solid. It is an isomer of 2-naphthol differing by the location of the hydroxyl group on the naphthalene ring. The naphthols are naphthalene homologues of phenol, with the hydroxyl group being more reactive than in the phenols. Both isomers are soluble in simple alcohols, ethers, and chloroform. They are precursors to a variety of useful compounds. Naphthols are used as biomarkers for livestock and humans exposed to polycyclic aromatic hydrocarbons.

Photocatalytic water splitting is a process that uses photocatalysis for the dissociation of water (H2O) into hydrogen (H
2) and oxygen (O
2). Only light energy (photons), water, and a catalyst(s) are needed, since this is what naturally occurs in natural photosynthetic oxygen production and CO2 fixation. Photocatalytic water splitting is done by dispersing photocatalyst particles in water or depositing them on a substrate, unlike Photoelectrochemical cell, which are assembled into a cell with a photoelectrode.

Pesticide degradation is the process by which a pesticide is transformed into a benign substance that is environmentally compatible with the site to which it was applied. Globally, an estimated 1 to 2.5 million tons of active pesticide ingredients are used each year, mainly in agriculture. Forty percent are herbicides, followed by insecticides and fungicides. Since their initial development in the 1940s, multiple chemical pesticides with different uses and modes of action have been employed. Pesticides are applied over large areas in agriculture and urban settings. Pesticide use, therefore, represents an important source of diffuse chemical environmental inputs.

Photocatalyst activity indicator ink (paii) is a substance used to identify the presence of an underlying heterogeneous photocatalyst and to measure its activity. Such inks render visible the activity of photocatalytic coatings applied to various "self-cleaning" products. The inks contain a dyestuff that reacts to ultraviolet radiation in the presence of the photocatalytic agent in the coating. They are applied to the coated product and show a color change or disappearance when exposed to ultraviolet radiation. The use of a paii based on the dye resazurin forms the basis of an ISO standard test for photocatalytic activity.

Micromotors are very small particles that can move themselves. The term is often used interchangeably with "nanomotor," despite the implicit size difference. These micromotors actually propel themselves in a specific direction autonomously when placed in a chemical solution. There are many different micromotor types operating under a host of mechanisms. Easily the most important examples are biological motors such as bacteria and any other self-propelled cells. Synthetically, researchers have exploited oxidation-reduction reactions to produce chemical gradients, local fluid flows, or streams of bubbles that then propel these micromotors through chemical media. Different stimuli, both external and internal can be used to control the behavior of these micromotors.

<span class="mw-page-title-main">Photogeochemistry</span>

Photogeochemistry merges photochemistry and geochemistry into the study of light-induced chemical reactions that occur or may occur among natural components of Earth's surface. The first comprehensive review on the subject was published in 2017 by the chemist and soil scientist Timothy A Doane, but the term photogeochemistry appeared a few years earlier as a keyword in studies that described the role of light-induced mineral transformations in shaping the biogeochemistry of Earth; this indeed describes the core of photogeochemical study, although other facets may be admitted into the definition.

References

  1. 1 2 "Prof. Davide Vione - Scienze Naturali, Scienze dei Sistemi Naturali, Evoluzione del comportamento animale e dell'uomo".
  2. ↑ "Davide Vione - Google Scholar".
  3. ↑ "Books by Davide Vione".
  4. ↑ Bodrato, Marco; Vione, Davide (2014). "APEX (Aqueous Photochemistry of Environmentally occurring Xenobiotics): a free software tool to predict the kinetics of photochemical processes in surface waters†". Environ. Sci.: Process. Impacts. 16 (4): 732–740. doi:10.1039/C3EM00541K. hdl: 2318/155200 . PMID   24356583. S2CID   23796078.
  5. ↑ "ACE Board".
  6. ↑ "Davide Vione".
  7. ↑ Harrison, Mark A.J.; Barra, Silvia; Borghesi, Daniele; Vione, Davide; Arsene, Cecilia; Iulian Olariu, Romeo (2005). "Nitrated phenols in the atmosphere: a review". Atmospheric Environment. 39 (2): 231–248. Bibcode:2005AtmEn..39..231H. doi:10.1016/j.atmosenv.2004.09.044.
  8. ↑ Coha, Marco (15 June 2021). "Advanced oxidation processes". Chemical Engineering Journal. 414: 128668. doi:10.1016/j.cej.2021.128668. hdl: 2318/1771905 . S2CID   233551557.
  9. ↑ Minero, Claudio; Maurino, Valter; Borghesi, Daniele; Pelizzetti, Ezio; Vione, Davide (2010). "An overview of possible processes able to account for the occurrence of nitro-PAHs in Antarctic particulate matter". Microchemical Journal. 96 (2): 213–217. doi:10.1016/j.microc.2009.07.013. hdl: 2318/79580 .
  10. ↑ Minella, Marco; Maurino, Valter; Minero, Claudio; Vione, Davide (2013). "Modelling photochemical transformation of emerging organic pollutants in surface waters: effect of water level fluctuations following outflow or evaporation, relevant to arid and semi-arid environments". International Journal of Environmental Analytical Chemistry. 93 (15): 1698–1717. doi:10.1080/03067319.2013.803284. hdl: 2318/141146 . S2CID   97972921.
  11. ↑ Gligorovski, S.; Strekowski, R.; Barbati, S.; Vione, D. (2015). "Environmental Implications of Hydroxyl Radicals (OH)". Chemical Reviews. 115 (24): 13051–13092. doi:10.1021/cr500310b. PMID   26630000.
  12. ↑ Vione, Davide; Falletti, Gianpaolo; Maurino, Valter; Minero, Claudio; Pelizzetti, Ezio; Malandrino, Mery; Ajassa, Roberto; Olariu, Romeo-Iulian; Arsene, Cecilia (2006). "Sources and Sinks of Hydroxyl Radicals upon Irradiation of Natural Water Samples". Environmental Science & Technology. 40 (12): 3775–3781. Bibcode:2006EnST...40.3775V. doi:10.1021/es052206b. PMID   16830541.
  13. ↑ Minero, C.; Mariella, G.; Maurino, V.; Vione, D.; Pelizzetti, E. (2000). "Photocatalytic Transformation of Organic Compounds in the Presence of Inorganic Ions. 2. Competitive Reactions of Phenol and Alcohols on a Titanium Dioxide−Fluoride System". Langmuir. 16 (23): 8964–8972. doi:10.1021/la0005863.
  14. ↑ Chiron, Serge; Minero, Claudio; Vione, Davide (2006). "Photodegradation Processes of the Antiepileptic Drug Carbamazepine, Relevant To Estuarine Waters". Environmental Science & Technology. 40 (19): 5977–5983. Bibcode:2006EnST...40.5977C. doi:10.1021/es060502y. hdl: 2318/40185 . PMID   17051788.
  15. ↑ Vione, Davide; Scozzaro, Andrea (2019). "Photochemistry of Surface Fresh Waters in the Framework of Climate Change". Environmental Science & Technology. 53 (14): 7945–7963. Bibcode:2019EnST...53.7945V. doi:10.1021/acs.est.9b00968. PMID   31241909. S2CID   195568666.
  16. ↑ Marussi, Giovanna; Vione, Davide (2021). "Secondary Formation of Aromatic Nitroderivatives of Environmental Concern: Photonitration Processes Triggered by the Photolysis of Nitrate and Nitrite Ions in Aqueous Solution". Molecules. 26 (9): 2550. doi: 10.3390/molecules26092550 . PMC   8124604 . PMID   33925664.
  17. ↑ Coha, Marco; Farinelli, Giulio; Tiraferri, Alberto; Minella, Marco; Vione, Davide (2021). "Advanced oxidation processes in the removal of organic substances from produced water: Potential, configurations, and research needs". Chemical Engineering Journal. 414: 128668. doi:10.1016/j.cej.2021.128668. hdl: 2318/1771905 . S2CID   233551557.
  18. ↑ Ahmed, Naveed; Vione, Davide; Rivoira, Luca; Carena, Luca; Castiglioni, Michele; Bruzzoniti, Maria Concetta (2021). "A Review on the Degradation of Pollutants by Fenton-Like Systems Based on Zero-Valent Iron and Persulfate: Effects of Reduction Potentials, pH, and Anions Occurring in Waste Waters". Molecules. 26 (15): 4584. doi: 10.3390/molecules26154584 . PMC   8347750 . PMID   34361737.
  19. ↑ Minella, Marco; Bertinetti, Stefano; Hanna, Khalil; Minero, Claudio; Vione, Davide (2019). "Degradation of ibuprofen and phenol with a Fenton-like process triggered by zero-valent iron (ZVI-Fenton)". Environmental Research. 179 (Pt A): 108750. Bibcode:2019ER....179j8750M. doi:10.1016/j.envres.2019.108750. PMID   31563032. S2CID   203592499.
  20. ↑ Minella, Marco; De Laurentiis, Elisa; Maurino, Valter; Minero, Claudio; Vione, Davide (2015). "Dark production of hydroxyl radicals by aeration of anoxic lake water". Science of the Total Environment. 527–528: 322–327. Bibcode:2015ScTEn.527..322M. doi:10.1016/j.scitotenv.2015.04.123. PMID   25965046.
  21. ↑ "Search Top Italian Scientists".
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