Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Nanostructures to facilitate the process to eliminate organic contaminants in water

Dissolution process of organic particles through nanoparticles

Nafarroako Unibertsitate Publikoa
Dissolution process of organic particles through nanoparticles

Nafarroako Unibertsitate Publikoa

Abstract:
In her PhD thesis, Silvia Larumbe-Abuin has developed nanostructures that assist in the process to decontaminate water. The nanostructures (particles of a microscopic size of between 1 and 100 nanometres) are coated in titanium oxide to which nitrogen has been added. This allows sunlight, rather than ultraviolet radiation, to trigger the process involving the chemical reaction and destruction of contaminants. What is more, thanks to the magnetic nucleus of the particles, once the process has been carried out, they can be retrieved and reused. Silvia Larumbe's thesis is entitled: "Síntesis, caracterización y aplicaciones de nanoestructuras basadas en óxidos de metales de transición" [Synthesis, characterisation and applications of nanostructures based on transition metal oxides].

Nanostructures to facilitate the process to eliminate organic contaminants in water

Usurbil, Spain | Posted on May 12th, 2014

The basis of the research conducted is the phenomenon known as photocatalysis: when light affects a substance that acts as a catalyst, the speed of the chemical reaction is increased. In this case, the light activates the titanium oxide and different oxidizing radicals are formed; the latter destroy the organic contaminants in the water, which could be colouring agents, solvents, detergents, etc. As the author of the work explained, "it is a sustainable system that could be used as an alternative to different treatments used traditionally in waste water treatment and, specifically, to eliminate certain organic contaminants".

One of the advantages of this development is the possibility of using sunlight instead of ultraviolet light. "Since nitrogen is added to the coating of the particles, the mechanism that will trigger the process can be sunlight rather than ultraviolet radiation, which means a more accessible, less expensive alternative that poses fewer risks."

The fact that structures of a nanometric size are used also improves photocatalytic capability since the surface of the photocatalyst is greater. Another advantage is the reuse of the catalysing component; since the nanostructures are formed using a magnetic nucleus, they can be retrieved by applying an external magnetic field.

Silvia Larumbe graduated in Chemistry at the University of Navarre, did a Master's in Chemical Science and Technology at the UNED (Open University) and obtained her PhD in the Department of Physics of the NUP/UPNA. She has participated in over twenty or so national and international conferences, is the co-author of twelve research papers, and has participated in various research projects.

References
C. Gómez-Polo, S. Larumbe, J.M. Pastor. (2013). "Room temperature ferromagnetism in non magnetic doped TiO2 nanoparticles". Journal of Applied Physics 113 17B511

####

For more information, please click here

Contacts:
Oihane Lakar

0034-943-363-040

Victoria Alfonso Seminario
Universidad Pública de Navarra
Contact details:

(+34) 948168457

Copyright © Elhuyar Fundazioa

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Production of Zirconium Carbide Nanoparticles at Low Temperature without Thermal Operations July 5th, 2015

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

New Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Discoveries

Production of Zirconium Carbide Nanoparticles at Low Temperature without Thermal Operations July 5th, 2015

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

New Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th, 2015

Clues to inner atomic life from subtle light-emission shifts: Hyperfine structure of light absorption by short-lived cadmium atom isotopes reveals characteristics of the nucleus that matter for high precision detection methods July 3rd, 2015

Announcements

Production of Zirconium Carbide Nanoparticles at Low Temperature without Thermal Operations July 5th, 2015

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

New Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Production of Zirconium Carbide Nanoparticles at Low Temperature without Thermal Operations July 5th, 2015

A 'movie' of ultrafast rotating molecules at a hundred billion per second: A quantum wave-like nature was successfully observed in rotating nitrogen molecules July 4th, 2015

New Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th, 2015

Pioneering Southampton scientist awarded prestigious physics medal July 3rd, 2015

Environment

NIST ‘How-To’ Website Documents Procedures for Nano-EHS Research and Testing July 1st, 2015

Carnegie Mellon chemists characterize 3-D macroporous hydrogels: Methods will allow researchers to develop new 'smart' materials June 30th, 2015

The peaks and valleys of silicon: Team of USC Viterbi School of Engineering Researchers introduce new layered semiconducting materials as silicon alternative June 27th, 2015

NNI Publishes Workshop Report and Launches Web Portal on Nanosensors: Both outputs support the Nanotechnology Signature Initiative ‘Nanotechnology for Sensors and Sensors for Nanotechnology: Improving and Protecting Health, Safety, and the Environment’ June 24th, 2015

Water

Visible Light-Sensitive Photocatalysts Used for Purification of Contaminated Water in Iran June 30th, 2015

Dais Analytic Unveils New Version of Aqualyte Membrane Technology: Updates to the Basis of the Company's Industry-Changing Nanotechnology Designed to Strengthen Position in Global Air, Energy, and Water Markets June 26th, 2015

Bacteria Cellulose, Natural Polymers with Applications in Various Industries Synthesized in Iran June 22nd, 2015

Ceramic Nanomembrane, New Material for Dehydration of Natural Gas June 7th, 2015

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project