Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Scientists Produce Self-Cleaning Coatings on Glass Substrate

Abstract:
Iranian researchers succeeded in the production of silica/titania/silica three-layer self-cleaning coating (SiO2/TiO2/SiO2) on glass substrate.

Scientists Produce Self-Cleaning Coatings on Glass Substrate

Tehran, Iran | Posted on March 17th, 2014

The coating has more stable phydrophilic and photocatalytic properties and much more transparency than titania coating.

In recent years, self-cleaning properties of titanium dioxide thin films have attracted the attention of many industrialists active in the field of building construction and optical devices. This specification is considered to be the result of combination of superhydrophilicity and photocatalytic properties of the thin film. In this study, a three-layer coating of SiO2 / TiO2 / SiO2 was deposited on glass substrate through vapor physical deposition method by using electron beam (EB-PVD). Next, hydrophilicity, photocatalytic and self-cleaning properties of the produced layer were compared to those of SiO2/TiO2 film.

The contact angle between water and the surface of the film exposed to UV light was measured, and the results showed that contact angle in SiO2/TiO2/SiO2 film had a quicker reduction than in SiO2/TiO2 film. In addition, the thin film of SiO2/TiO2/ SiO2 had conserved its hydrophilic properties after being kept in a dark place in comparison with SiO2/TiO2 film. It was also observed that the three-layered film that had a layer of SiO2 deposited on its top had higher photocatalytic activity than the other two films.

In general, hydrophilic and photocatalytic properties of the three-layered silica/titania/silica film showed a significant increase in comparison with single-layer coating film of titania and bi-layer film of silica/titania. The three-layered film also had higher optical transparency, which resulted in better self-cleaning properties for the film. Therefore, this film is very desirable to be used in construction industry, automobile manufacturing and optical devices.

Results of the research have been published in International Journal of Materials Research, vol. 104, issue 12, December 2013, pp. 1263-1266.

####

For more information, please click here

Copyright © Fars News Agency

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

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

New optical sensor can determine if molecules are left or right 'handed' June 13th, 2018

Nickel ferrite promotes capacity and cycle stability of lithium-sulfur battery June 13th, 2018

Thin films

New optical sensor can determine if molecules are left or right 'handed' June 13th, 2018

Organic solar cells reach record efficiency, benchmark for commercialization April 23rd, 2018

Discoveries

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

Graphene carpets: So neurons communicate better: Research by SISSA reveals that graphene can strengthen neuronal activity, confirming the unique properties of this nanomaterial. The study has been published on Nature Nanotechnology June 13th, 2018

Announcements

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

Physicists devise method to reveal how light affects materials: The new method adds to the understanding of the fundamental laws governing the interaction of electrons and light June 15th, 2018

Tripling the Energy Storage of Lithium-Ion Batteries: Scientists have synthesized a new cathode material from iron fluoride that surpasses the capacity limits of traditional lithium-ion batteries June 14th, 2018

New optical sensor can determine if molecules are left or right 'handed' June 13th, 2018

Tools

Nanometrics Updates Time of Webcast at Stifel 2018 Cross Sector Insight Conference June 12th, 2018

Nano-saturn: Supramolecular complex formation: Anthracene macrocycle and C60 fullerene June 8th, 2018

Detecting the birth and death of a phonon June 7th, 2018

Scientists use photonic chip to make virtual movies of molecular motion June 6th, 2018

Industrial

Magnesium magnificent for plasmonic applications: Rice University, University of Cambridge synthesize and test nanoparticles of abundant material May 22nd, 2018

Watching nanomaterials form in 4D: Novel technology allows researchers to see dynamic reactions as they happen at the nanoscale April 26th, 2018

Leti and Inac Show Path to Creating Building Blocks of Quantum Processors With 28Si isotope in a CMOS Line: Fabrication of Isotopically Enriched, Industry-Compatible Wafers Points Way To Realizing Silicon Spin Quantum Bits with Enhanced Fidelity March 20th, 2018

Glass matters: UCSB researchers find that the chemical topology of silica can influence the effectiveness of many chemical processes that use it March 14th, 2018

Photonics/Optics/Lasers

Squeezing light at the nanoscale: Ultra-confined light could detect harmful molecules June 17th, 2018

New optical sensor can determine if molecules are left or right 'handed' June 13th, 2018

Leti Presenting Strategic Vision and Hosting a Workshop at SEMICON West: “From Electrons to Photons” Leti Workshop and CEO Media Briefing Set for Tuesday, July 10 in W Hotel, San Francisco June 12th, 2018

FEFU scientists have created a new type of optical ceramic material June 8th, 2018

Construction

Weak hydrogen bonds key to strong, tough infrastructure: Rice University lab simulates polymer-cement composites to find strongest, toughest materials January 29th, 2018

The next generation of power electronics? Gallium nitride doped with beryllium: How to cut down energy loss in power electronics? The right kind of doping November 9th, 2017

Corrosion in real time: UCSB researchers get a nanoscale glimpse of crevice and pitting corrosion as it happens September 14th, 2017

Here's a tip: Indented cement shows unique properties: Rice University models reveal nanoindentation can benefit crystals in concrete July 20th, 2017

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project