Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Nanotechnology Used to Measure Low Concentrations of Cyanide Ion in Water

Abstract:
Iranian researchers successfully measured low concentrations of the toxic and harmful cyanide ion in aqueous environments by using nanotechnology.

Nanotechnology Used to Measure Low Concentrations of Cyanide Ion in Water

Tehran, Iran | Posted on March 29th, 2012

"Synthetic silver nanoparticles were used in the research as the colorimetric sensor in order to measure low concentrations of cyanide ion in aqueous environments," Salahoddin Hajizadeh, MSc in analytical chemistry from Urmia University, told the INIC.

According to him, the purpose of this research was to present a simple, cost-effective, selective, and sensitive method for the measurement of low concentrations of the toxic and dangerous cyanide ion in water by using nanotechnology.

"The pollution of water reservoirs with cyanide compounds is among the important environmental challenges. Most of the reported colorimetric methods to measure cyanide are based on organic colors, so they are applicable in organic environments. Therefore, it is necessary to present a simple and cost-effective method to measure cyanide in aqueous solutions," he added.

Elaborating on the method of the research, Hajizadeh said, "Colloidal solution of silver nanoparticles has a bright yellowish color. Therefore, the formation and stabilization of silver nanoparticle solution can be confirmed by using ultraviolet-visible light spectroscopy analysis. The synthesized silver nanoparticle solution is stable for months in the dark at the room temperature, and its SPR adsorption band of the solution does not change. However, when the aqueous cyanide solution is added to silver nanoparticle solution, its color becomes pale. The solution becomes colorless at the presence of extra amount of cyanide."

"The increase in the intensity of SPR adsorption band is in proportion with the concentration of cyanide, and there is a linear relation between the concentration of cyanide and the reduction in the adsorption of silver nanoparticle solution."

Hajizadeh explained about the advantage of the presented method, and added, "This method can easily be used with naked eye, or by using a simple spectrophotometer device in order to detect cyanide in water."

####

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

A nanoscale wireless communication system via plasmonic antennas: Greater control affords 'in-plane' transmission of waves at or near visible light August 27th, 2016

Forces of nature: Interview with microscopy innovators Gerd Binnig and Christoph Gerber August 26th, 2016

A promising route to the scalable production of highly crystalline graphene films August 26th, 2016

Graphene under pressure August 26th, 2016

Discoveries

A promising route to the scalable production of highly crystalline graphene films August 26th, 2016

Graphene under pressure August 26th, 2016

Nanofur for oil spill cleanup: Materials researchers learn from aquatic ferns: Hairy plant leaves are highly oil-absorbing / publication in bioinspiration & biomimetics / video on absorption capacity August 25th, 2016

Unraveling the crystal structure of a -70 Celsius superconductor, a world first: Significant advancement in the realization of room-temperature superconductors August 25th, 2016

Announcements

A nanoscale wireless communication system via plasmonic antennas: Greater control affords 'in-plane' transmission of waves at or near visible light August 27th, 2016

Forces of nature: Interview with microscopy innovators Gerd Binnig and Christoph Gerber August 26th, 2016

A promising route to the scalable production of highly crystalline graphene films August 26th, 2016

Graphene under pressure August 26th, 2016

Tools

Nanofiber scaffolds demonstrate new features in the behavior of stem and cancer cells August 25th, 2016

50 years after the release of the film 'Fantastic Voyage,' science upstages fiction: Science upstages fiction with nanorobotic agents designed to travel in the human body to treat cancer August 25th, 2016

University of Puerto Rico and NASA back in the news XEI reports August 23rd, 2016

Spider silk: Mother Nature's bio-superlens August 22nd, 2016

Water

SLAC, Stanford gadget grabs more solar energy to disinfect water faster: Plopped into water, a tiny device triggers the formation of chemicals that kill microbes in minutes August 15th, 2016

New method for making green LEDs enhances their efficiency and brightness July 30th, 2016

Dirty to drinkable: Engineers develop novel hybrid nanomaterials to transform water July 28th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

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







Car Brands
Buy website traffic