Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

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

Transparent, electrically conductive network of encapsulated silver nanowires: A novel electrode for optoelectronics August 1st, 2015

Harris & Harris Group Portfolio Company, HZO, Announces Partnerships with Dell and Motorola August 1st, 2015

Advances and Applications in Biosensing, Sensor Power, and Sensor R&D to be Covered at Sensors Global Summit August 1st, 2015

Kalam: versatility personified August 1st, 2015

Discoveries

Shaping the hilly landscapes of a semi-conductor nanoworld August 1st, 2015

Solid state physics: Quantum matter stuck in unrest August 1st, 2015

Self-assembling, biomimetic membranes may aid water filtration August 1st, 2015

Transparent, electrically conductive network of encapsulated silver nanowires: A novel electrode for optoelectronics August 1st, 2015

Announcements

Self-assembling, biomimetic membranes may aid water filtration August 1st, 2015

Transparent, electrically conductive network of encapsulated silver nanowires: A novel electrode for optoelectronics August 1st, 2015

Harris & Harris Group Portfolio Company, HZO, Announces Partnerships with Dell and Motorola August 1st, 2015

Advances and Applications in Biosensing, Sensor Power, and Sensor R&D to be Covered at Sensors Global Summit August 1st, 2015

Tools

Heating and cooling with light leads to ultrafast DNA diagnostics July 31st, 2015

Take a trip through the brain July 30th, 2015

Publication on Atomic Force Microscopy based nanoscale IR Spectroscopy (AFM-IR) persists as a 2015 top downloaded paper July 29th, 2015

Nanometrics Announces Upcoming Investor Events July 28th, 2015

Water

Self-assembling, biomimetic membranes may aid water filtration August 1st, 2015

March 2016; 6th Int'l Conference on Nanostructures in Iran July 29th, 2015

Laboratorial Performance of Nanocomposite Membrane Improved in Water Purification July 28th, 2015

Nanosorbents Reduce Amount of Heavy Metals in Petrochemical Wastewater July 23rd, 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