Featured Research

from universities, journals, and other organizations

Nanmaterial detects and removes arsenic from drinking water

Date:
January 23, 2012
Source:
National Institute for Materials Science
Summary:
Scientists have developed a nanomaterial which enables simple detection and removal of arsenic from drinking water.

Prof. Dr. Sherif A. El-Safty, a Principal Researcher of the Materials Recycling Design Group, Research Center for Strategic Materials, National Institute for Materials Science developed a nanomaterial which enables simple detection and removal of arsenic from drinking water.

This nanomaterial responds to warnings that as many as 60 million people live in contaminated areas in Southeast Asia without safe drinking water.

The nanomaterial is a further developed for heavy metal ion sensors for lead (Pb), mercury (Hg), etc. and adsorbent materials, which Dr. El-Safty developed previously for a rare metal adsorption/recovery materials such as cobalt (Co), palladium (Pd), etc. and radioactive element adsorbents for cesium (Cs), strontium (Sr), etc. As a Principal Researcher whom he originally livid at the Middle East, where a clean water is particularly precious, Dr. El-Safty devoted himself to the development of this material in order to save the world's drinking water.

Groundwater in Asia, South America, and Africa is now widely contaminated with arsenic. Arsenic contamination of the drinking water for 35 million people in Bangladesh is especially well-known. Long-term ingestion of this water causes serious disorders of the skin, nervous system, and cardiovascular system, and can also cause health problems in the form of frequent development of cancers. Although the United Nations and the governments of individual nations have taken countermeasures over many years, it was difficult to develop an arsenic removal method that is inexpensive, simple, and easy to use in treatment of everyday drinking water.

In the developed technology, the inner walls of nanoporous substances, namely a high order mesoporous (HOM) structures, are densely packed with a functional group which is sensitive and selective for capturing arsenic. When even a trace amount of arsenic is present in water, these nanomaterial captors can quickly adsorbed and removed arsenic. As a distinctive feature, the detection/removal of arsenic can easily be confirmed because the color of the nanomaterial captors changes in the adsorption stage with the same frequency of human eyes, showing the user that the removal has occurred.

As one particular advantage of this technology, the potential use is not limited to large-volume water treatment plants. Because its features include high sensitivity, low cost, visualization of results, light weight, and high speed, it can also be used easily by individual persons. As a result, the threat of arsenic can be greatly reduced when the development of new water sources in the developing countries and elsewhere is achieved. Efforts will be made to popularize this new device in many urgent regions, as a technology that can secure the safe water on an everyday basis.


Story Source:

The above story is based on materials provided by National Institute for Materials Science. Note: Materials may be edited for content and length.


Cite This Page:

National Institute for Materials Science. "Nanmaterial detects and removes arsenic from drinking water." ScienceDaily. ScienceDaily, 23 January 2012. <www.sciencedaily.com/releases/2012/01/120121160443.htm>.
National Institute for Materials Science. (2012, January 23). Nanmaterial detects and removes arsenic from drinking water. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2012/01/120121160443.htm
National Institute for Materials Science. "Nanmaterial detects and removes arsenic from drinking water." ScienceDaily. www.sciencedaily.com/releases/2012/01/120121160443.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com
Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com
Europe's Car Market on the Rebound?

Europe's Car Market on the Rebound?

Reuters - Business Video Online (July 23, 2014) Daimler kicks off a round of second-quarter earnings results from Europe's top carmakers with a healthy set of numbers - prompting hopes that stronger sales in Europe will counter weakness in emerging markets. Hayley Platt reports. Video provided by Reuters
Powered by NewsLook.com
9/11 Commission Members Warn of Terror "fatigue" Among American Public

9/11 Commission Members Warn of Terror "fatigue" Among American Public

Reuters - US Online Video (July 22, 2014) Ten years after releasing its initial report, members of the 9/11 Commission warn of the "waning sense of urgency" in combating terrorists attacks. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins