Project Name: Novel approach to nanoscale, multi-functional materials, to reduce toxics and bacteria and to manage resources more efficiently (EN)
(Noi abordari privind materialele nanometrice multifunctionale, pentru a reduce produsele toxice si bacteriile si a gestiona mai eficient resursele)

Contract no . 80/05.10.2011

Project code: PN-II-ID-PCE-2011-3-0479

PN II project name: IDEI

Subprogram: Program cercetare exploratorie-PCE

Project Director: Dr. ALEXANDRESCU Rodica (2011-2012) si FLEACA Claudiu Teodor (2013-2016)

Coordinator: Institutul National pentru Fizica Laserilor, Plasmei si Radiatiei

Project summary:

The goal of the project is to develop a novel multifunctional TiO2-based magnetic nanocomposite, synthesized by direct (single step) laser pyrolysis, for the employment in water treatment of pollutants with superior efficiency since provided with recuperation/recycling abilities. The present original approach is based on the candidate’s solid expertise in the synthesis of complex nanoparticles by laser pyrolysis (numerous articles in ISI journals and successful international collaborations on pure/doped Fe and Ti oxides, Fe-Sn intermetallics, core-shell polymer/carbon- based nanostructures etc). Main objectives are: i) novel designed composite multifunctional nanostructures by a single synthesis method which avoids the long and tedious steps of the chemical methods; ii) cost-effective, recycling properties ( the buried magnetic nanoparticle is used as a carrier for the solid/liquid separation by applying a magnetic field); iii) improved thermal stability, dispersability, visible light absorption and photocatalytic properties (developing functional dense shells of syloxane polymers doped with nano-particulate anatase TiO2). The ability to link these models in harmony should lead to a new generation of nano-synthesis tools based on the versatile laser pyrolysis. It will allow the obtaining of top scientific results acknowledged worldwide, thus fulfilling objectives of the IDEI-Exploratory Research Projects PN-II-ID-PCE-2011-3.

Phase I - 15.12.2011 (click here for phase scientific report)

Phase I value: 180,000 lei
Phase I. The developing of the conceptual models and theories regarding the synthesis methods for the preparation of doped TiO2 nanostructured compounds.
Expected Results
1. Tehnical analysis of the laser pyrolysis systems design for the obtaining of titania with a major anatase content; The state-of-the-art of laser pyrolysis installations.
2. The development of the required specific components for the synthesis installations in order to obtain the new titanium oxide-based nanoparticles.

Phase II - 14.12.2012 (click here for phase scientific report)

Phase II value: 420,000 lei

Phase II: Developing of the experimental model for the laser pyrolysis synthesized TiO2-based nanoparticles which contain maghemite/magnetite-type iron oxide as the magnetic core (using the Fe(CO)6 precursor) embedded in a TiO2 matrix; synthesis and characterization
Expected Results
Nanosized TiO2–based nanoparticles synthesized by laser pyrolysis and containing maghemite/magnetite iron oxides as a core (using iron penthacarbonyl as precursor) and TiO2 as outer shell with detailed compositional (using EDX) and structural characterization (using UV-Vis, XRD, TEM, SEM analyses) combined with magnetic characterization having photocatalytic properties proved for organic substances liquid-phase photodegradation

Phase III - 15.12.2013 (click here for phase scientific report)

Phase III value: 248 319,97 lei
Phase III Compared experiments regarding the laser pyrolysis synthesis of the TiO2 nanoparticles covered with siloxane polymers: complex chacaterizations.
Expected Results
TiO2 nanoparticles coated by carbosilanic polymer/silica (from HDMSO precursor) shell synthesized by laser pyrolysis with detailed elemental (using EDX) and structural characterization (using XRD, TEM, SAED, SEM and FTIR analytic techniques) as well as optical characterization using UV-Vis technique which can predict photocatalytic properties

Phase IV - 1512.2014 (click here for phase scientific report)
Phase IV. The realization of the experimental model of magnetic doped TiO2 nanoparticles embedded in siloxane polymer: results obtained at different Ti doping levels (low/ high fluxes of Ti gas precursor).
Expected Results
Nanosized magnetic nanoparticles (maghemite iron oxide core) embedded in silica/carbosilane polymer/silica (HMDSO as precursor) with various content of titania obtained in one step by laser pyrolysis technique having well resolved characteristics: compositional (using EDX and XRD), morpho-structural (using XRD, TEM, SAED, SEM and optical UV-Vis and FTIR analytic techniques) and magnetic ones (from Mossbauere and hysteresis curves) with potential photocatalytic properties

Phase IV value:175 000 lei

Phase V – 31.12.2015 (click here for phase scientific report)
Phase V value: 176,802 lei

Phase VI - 04.10.2016 (acceseaza aici)
Phese VI value: 299 878,03 lei

Dissemination Click on the name to view

1. Fleaca Claudiu Teodor - Project Manager
2. Badoi Anca Daniela
3. Dumitrache Florian
4. Dutu Elena
5. Miron Dan
6. Morjan Ion
7. Morjan Iuliana
8. Niculescu Ana Maria
9. Scarisoreanu Monica
10. Danciu Virginia
11. Filoti George
12. Vasile Eugeniu
13. Kuncser Victor