1,721,162 research outputs found
2nd International Conference on NANOTECHNOLOGY BASED INNOVATIVE APPLICATIONS FOR THE ENVIRONMENT
No full textChairman del Comitato Scientifico e Membro del Comitato Organizzatore
2nd INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY BASED INNOVATIVE APPLICATIONS FOR THE ENVIRONMENT
24-27 September 2017, Rome, Italy
Following the success of the first edition held in 2016 NINE, the International Conference on Nanotechnology based INnovative applications for the Environment, will be back in 2017.
NINE 2017 aims at presenting recent scientific and technical advances in the field of nanotechnology application to the environment protection, including characterization, monitoring, remediation of contaminated sites, and treatment of water, wastewater and residues.
The Conference, , organized by the Italian Association of Chemical Engineering (AIDIC) in collaboration with the Department of Chemical Materials Environmental Engineering (DICMA) of Sapienza, University of Rome, will be held in Rome, Italy, on 24-27 September 2017.
The venue of the Conference is the Congress Center Pallavicini-Rospigliosi, located in the very heart of Rome, near Trevi Fountain and Quirinale Palace.
NINE 2017 welcomes contributions from researchers and engineers from academic and research institutions , as well as stakeholders from industry, presenting recent advances and new approaches on the application of nanotechnologies to the environment.
Oral and poster sessions will take place, and each oral session will be introduced by a keynote speaker.
All the accepted papers, as oral or poster contribution, will be published on Chemical Engineering Transactions. The Journal is valued by ISBN & ISSN numbers, and referenced by SCOPUS and THOMSON REUTERS citation index (ISI Web of Knowledge).
We wish to welcome You in Rome on September 2017,
Prof. Luca Di Palma
"Sapienza" University of Rome
NINE2017 Scientific Committee Co-Chairman
Prof. Carmelo Sunseri
Applied Physical Chemistry Lab. - University of Palermo, Head of the Nanotechnology Working group- AIDIC
NINE2017 Scientific Committee Co-Chairma
Sustainability
No full textMembro dell'Editorial Board della rivista nella sezione:
'Environmental Sustainability and Applications
Titanium Dioxide Nanoparticles Doped with Iron for Water Treatment via Photocatalysis: A Review
No full textIron-doped titanium dioxide nanoparticles are widely employed for photocatalytic applications under visible light due to their promising performance. Nevertheless, the manufacturing process, the role of Fe3+ ions within the crystal lattice of titanium dioxide, and their impact on operational parameters are still a subject of controversy. Based on these assumptions, the primary objective of this review is to delineate the role of iron, ascertain the optimal quantity, and elucidate its influence on the main photocatalysis parameters, including nanoparticle size, band gap, surface area, anatase–rutile transition, and point of zero charge. Moreover, an optimized synthesis method based on comprehensive data and insights from the existing literature is proposed, focusing exclusively on iron-doped titanium oxide while excluding other dopant variants
New metamaterial-inspired antenna concepts based on enhanced microwave transmission through sub-wavelength apertures
No full text
Hexavalent chromium reduction in manganese-rich soils by ZVI nanoparticles: the influence of natural organic matter and manganese oxides
Full text linkHexavalent chromium reduction by nano Zero-Valent Iron
(nZVI) has been proved fast and efficient, mainly due to
nanoparticles large specific surface area and high chemical
reactivity. In this work the influence of natural organic
matter and manganese oxide was investigated, through a
set of experimental tests carried out on a real polluted soils
naturally rich in manganese. Soil samples were
characterized in terms of initial concentration of Cr,
Cr(VI), Mn, pH, and TOC and three different nZVI
solutions were used (120, 360 and 600 mg nZVI L-1
) for
the treatment. At selected interval times (0, 5, 10, 15, 30,
60, 120 min) a slurry sample was filtered and Cr(VI)
residual concentration and pH were measured. The same
procedure was carried out on an artificial spiked soil,
characterized by a similar TOC and poor of Mn.
Furthermore the two soils were mixed with different
amounts of leonardite, to evaluate the influence of NOM
on treatment efficiency
Experimental assessment of the pH effect and ions on the photocatalytic activity of iron-doped titanium dioxide supported on polystyrene pellets: Batch and continuous tests
No full textExperimental tests in batch and continuous modes studied the impact of pH and the presence of inorganic ions on the photocatalytic properties of a visible light-activated titanium oxide catalyst doped with iron. Significantly enhanced photocatalysis was observed in the presence of nitrate and iron ions, while chloride hindered adsorption using Rhodamine B. A strong correlation between pH and photocatalytic performance was noted, along with a connection between the adsorption of the target molecule on the catalyst and subsequent photocatalytic degradation. Supporting the catalyst with polystyrene pellets reduced photocatalytic performance. However, catalyst reuse for four cycles and optimal dosages were achieved. In a continuous system, consistent chemical efficiency was maintained. Over 8 days, removal rates remained around 35 % and 43 % in presence of NO3–. Mechanically, no catalyst loss from the support was observed. These findings set the stage for potential industrial-scale applications
Boron removal from wastewater via coordinative adsorption assisted by Fenton-Induced Oxoprecipitation/Flocculation
No full textChemical precipitation is widely used for boron removal from water in industrial-scale processes, though a following post treatment is generally required to meet the concentration set by current international standards. In this work, chemical precipitation of boron (B) in water by different precipitating agents was combined with Fenton treatment to enhance the boron removal effectiveness. This approach achieved residual boron concentration of less than 0.5 mg/L, hard to achieve through conventional precipitation methods. Batch tests were performed at different dosage of Fenton reagents, and selected Fe2+/H2O2 weight ratios were evaluated with or without adding precipitating agents. The effect of pH on the process was also investigated, to assess the optimal conditions to maximize boron removal. At the end of the process, barium hydroxide was used to remove effectively excess sulfate ions. The sludge produced was characterized by XRD, SEM and FTIR analysis, and the mechanism of boron removal was investigated. An oxoprecipitation mechanism was induced by the Fenton process: boron-based species were converted into borate ion, thus predisposing them to a coordination-type adsorption on the surface of iron and calcium hydroxide, assisted by aluminum sulfate at pH 12.5. The process was then successfully tested on real boron −contaminated wastewater, thus confirming the effectiveness of the process while simultaneously decreasing the organic content
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