Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Recycling valuable materials used in TVs, car batteries, cell phones

Flat-screen televisions and other technologies rely on rare earth elements that are in short supply, but scientists are working on a new way to recycle them from wastewater.
Credit: iStock/Thinkstock
Flat-screen televisions and other technologies rely on rare earth elements that are in short supply, but scientists are working on a new way to recycle them from wastewater.

Credit: iStock/Thinkstock

Abstract:
Many of today's technologies, from hybrid car batteries to flat-screen televisions, rely on materials known as rare earth elements (REEs) that are in short supply, but scientists are reporting development of a new method to recycle them from wastewater. The process, which is described in a study in the journal ACS Applied Materials & Interfaces, could help alleviate economic and environmental pressures facing the REE industry.

Recycling valuable materials used in TVs, car batteries, cell phones

Washington, DC | Posted on October 30th, 2013

Zhang Lin and colleagues point out that REEs, such as terbium — a silvery metal so soft it can be cut with a knife — behave in unique ways as super magnets, catalysts or superconductors. That makes them irreplaceable in many of today's tech gadgets and machines. Market watchers expect global demand to rise to at least 185,000 tons by 2015. Although some of these elements are actually plentiful, others are indeed in short supply. According to reports, terbium and dysprosium supplies may only last another 30 years. Attempts so far to recycle them from industrial wastewater are expensive or otherwise impractical. A major challenge is that the elements are typically very diluted in these waters. The team knew that a nanomaterial known as nano-magnesium hydroxide, or nano-Mg(OH)2, was effective at removing some metals and dyes from wastewater. So they set out to understand how the compound worked and whether it would efficiently remove diluted REEs, as well.

To test their idea, they produced inexpensive nano-Mg(OH)2 particles, whose shapes resemble flowers when viewed with a high-power microscope. They showed that the material captured more than 85 percent of the REEs that were diluted in wastewater in an initial experiment mimicking real-world conditions. "Recycling REEs from wastewater not only saves rare earth resources and protects the environment, but also brings considerable economic benefits," the researchers state. "The pilot-scale experiment indicated that the self-supported flower-like nano-Mg(OH)2 had great potential to recycle REEs from industrial wastewater."

The authors cite funding from the National Basic Research Program of China, the Outstanding Youth Fund, the National Natural Science Foundation of China, Fund of Fujian Key Laboratory of Nanomaterials and the Knowledge Innovation Program of the Chinese Academy of Sciences.

####

About American Chemical Society
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 163,000 members, ACS is the world’s largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

For more information, please click here

Contacts:
Zhang Lin, Ph.D.
State Key Laboratory of Structural Chemistry
Fujian Institute of Research on the Structure of Matter
Chinese Academy of Sciences
Fuzhou, Fujian
350002 P. R. China
Phone and Fax: +086-591-83705474


General Inquiries: Michael Bernstein

202-872-6042

Science Inquiries: Katie Cottingham, Ph.D.

301-775-8455

Copyright © American Chemical Society

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 Links

DOWNLOAD FULL-TEXT ARTICLE -"Recycling Rare Earth Elements from Industrial Wastewater with Flowerlike Nano-Mg(OH)2”:

Related News Press

News and information

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

For 2-D boron, it's all about that base: Rice University theorists show flat boron form would depend on metal substrates September 2nd, 2015

Silk bio-ink could help advance tissue engineering with 3-D printers September 2nd, 2015

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

Superconductivity

Two spin liquids square off in an iron-based superconductor: Changes in short-range, transient order in competing liquid-like phases precede onset of superconductivity August 5th, 2015

Detecting small metallic contaminants in food via magnetization: A practical metallic-contaminant detecting system using three high-Tc RF superconducting quantum interference devices (SQUIDs) July 29th, 2015

Superconductor could be realized in a broken Lorenz invariant theory July 7th, 2015

Making new materials with micro-explosions: ANU media release: Scientists have made exotic new materials by creating laser-induced micro-explosions in silicon, the common computer chip material June 29th, 2015

Govt.-Legislation/Regulation/Funding/Policy

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

For 2-D boron, it's all about that base: Rice University theorists show flat boron form would depend on metal substrates September 2nd, 2015

Silk bio-ink could help advance tissue engineering with 3-D printers September 2nd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

Discoveries

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

For 2-D boron, it's all about that base: Rice University theorists show flat boron form would depend on metal substrates September 2nd, 2015

Silk bio-ink could help advance tissue engineering with 3-D printers September 2nd, 2015

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

Announcements

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

Silk bio-ink could help advance tissue engineering with 3-D printers September 2nd, 2015

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

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

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

For 2-D boron, it's all about that base: Rice University theorists show flat boron form would depend on metal substrates September 2nd, 2015

Silk bio-ink could help advance tissue engineering with 3-D printers September 2nd, 2015

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

Environment

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

RUSNANOPRIZE Directorate Announces New Deadline for Nominations Submission – September 11, 2015 September 1st, 2015

Successful boron-doping of graphene nanoribbon August 27th, 2015

Iranian Scientists Utilize Nanomembranes to Purify Wastewater of Olive Oil Plants August 20th, 2015

Water

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

An engineered surface unsticks sticky water droplets August 31st, 2015

Southampton scientists find new way to detect ortho-para conversion in water August 25th, 2015

Iranian Scientists Utilize Nanomembranes to Purify Wastewater of Olive Oil Plants August 20th, 2015

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

Reversible Writing with Light: Self-assembling nanoparticles take their cues from their surroundings September 3rd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

RUSNANOPRIZE Directorate Announces New Deadline for Nominations Submission – September 11, 2015 September 1st, 2015

$200K Awarded to Develop In Vitro Lung Test for Toxicity of Inhaled Nanomaterials: In Vitro Lung Test Designed to Protect Human Health and Replace Animal Testing September 1st, 2015

Alliances/Trade associations/Partnerships/Distributorships

TCL and QD Vision Demonstrate the Future of Wide Color Gamut Television at IFA: Color IQ Based Display is the First Commercially-Branded Television to Present Over 90% of ITU Rec. 2020 Color Gamut September 2nd, 2015

National Space Society Welcomes Janet Ivey As New NSS Governor: Janet Ivey of Janet's Planet is NOW IN ORBIT as a member of the Board of Governors of the National Space Society August 27th, 2015

National Space Society Welcomes Geoff Notkin As New NSS Governor August 26th, 2015

XEI Scientific appoints EM Resolutions as Distributor for the UK & Irish markets August 11th, 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







Car Brands
Buy website traffic