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The DOE Science News Source is a Newswise initiative to promote research news from the Office of Science of the DOE to the public and news media.
  • 2017-05-04 13:40:04
  • Article ID: 674160

Wood Filter Removes Toxic Dye From Water

Engineers at the University of Maryland have developed a new use for wood: to filter water. Liangbing Hu of the Energy Research Center and his colleagues added nanoparticles to wood, then used it to filter toxic dyes from water.

 The team started with a block of linden wood, which they then soaked in palladium – a metal used in cars’ catalytic converters to remove pollutants from the exhaust. In this new filter, the palladium bonds to particles of dye. The wood’s natural channels, that once moved water and nutrients between the leaves and roots, now allow the water to flow past the nanoparticles for efficient removal of the toxic dye particles. The water, tinted with methylene blue, slowly drips through the wood and comes out clear.

VIDEO: Wood filter removes toxic dye from water https://youtu.be/o8H8YxRP1Dw

"This could be used in areas where wastewater contains toxic dye particles," said Amy Gong, a materials science graduate student, and co-first author of the research paper.

The purpose of the study was to analyze wood via an engineering lens. The researchers did not compare the filter to other types of filters; rather, they wanted to prove that wood can be used to remove impurities.

"We are currently working on using a wood filter to remove heavy metals, such as lead and copper, from water,' said Liangbing Hu, the lead researcher on the project. "We are also interested in scaling up the technology for real industry applications." Hu is a professor of materials science and a member of the University of Maryland’s Energy Research Center.

"We found that the wood’s channels are actually slightly bent, and they are connected by pores, which slightly increase the time that the water is in contact with the wood," said Siddhartha Das, professor of mechanical engineering. His team helped Hu’s study the flow of water through the wood.

The research, which was published March 31, 2017, in the journal ACS Nano, is the latest innovative use of wood by the UMD team. They previously made a battery and a supercapacitor out of wood; a battery from a leaf; and made wood transparent then used it for windows.

 

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Mesoporous, Three-Dimensional Wood Membrane Decorated with Nanoparticles for Highly Efficient Water Treatment

 

Chen, Gong, and Zhu, et al. 2017 ACS Nano

 

DOI: 10.1021/acsnano.7b01350

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Researchers Demonstrate Promising Method for Improving Quantum Information Processing

A team of researchers led by the Department of Energy's Oak Ridge National Laboratory has demonstrated a new method for splitting light beams into their frequency modes, work that could spur advancements in quantum information processing and distributed quantum computing.

Deep Dive Into How Electrons Behave

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Higher Income Level Linked to Police Use of Force Against Black Women

Black women with higher incomes are more likely to experience a forceful police interaction during a traffic stop, finds a new study from the Brown School at Washington University in St. Louis."We found that the likelihood of exposure to each type of police use of force was significantly greater for black females with incomes over $50,000," said Robert Motley Jr.

Bringing a Hidden Superconducting State to Light

Using high-intensity pulses of infrared light, scientists found evidence of superconductivity associated with charge "stripes" in a material above the temperature at which it begins to transmit electricity without resistance--a finding that could help them design better high-temperature superconductors.

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Physics Data Processing on NERSC Supercomputer Dramatically Cuts Reconstruction Time

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Missing Link to Novel Superconductivity Revealed at Ames Laboratory

Scientists at the U.S. Department of Energy's Ames Laboratory have discovered a state of magnetism that may be the missing link to understanding the relationship between magnetism and unconventional superconductivity.


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Pacific Northwest National Laboratory, OHSU Create Joint Research Co-Laboratory to Advance Precision Medicine

News Release PORTLAND, Ore. -- Pacific Northwest National Laboratory and OHSU today announced a joint collaboration to improve patient care by focusing research on highly complex sets of biomedical data, and the tools to interpret them.The OHSU-PNNL Precision Medicine Innovation Co-Laboratory, called PMedIC, will provide a comprehensive ecosystem for scientists to utilize integrated 'omics, data science and imaging technologies in their research in order to advance precision medicine -- an approach to disease treatment that takes into account individual variability in genes, environment and lifestyle for each person.

The Mysteries of Plasma and Solar Eruptions Earn PPPL Graduate an Astrophysics Prize

Article describes dissertation award for graduate of Princeton University Department of Astrophysical Sciences.

45-Year-Old Telescope Gets a Makeover to Demystify Dark Energy

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MSU Uses $3 Million NASA Grant to Find Better Ways to Regulate Dams

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Harker School Wins Second Consecutive SLAC Regional DOE Science Bowl

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David Asner Named Deputy Associate Laboratory Director and Head of the Instrumentation Division in Brookhaven Lab's Nuclear and Particle Physics Directorate

A particle physicist with extensive leadership and management experience, Asner will help expand a portfolio of physics programs and oversee instrumentation research and development.

UIC to Provide Energy-Saving 'Kits' with $3.1m in Funding From ComEd

The University of Illinois at Chicago's Energy Resources Center has received funding from ComEd to provide energy-efficient LED light bulbs, advanced power strips, and educational material to income-qualified participants in northern Illinois.As part of a $3.1 million year-long investment, the utility company will fund the Low Income Kit Energy (LIKE) program, allowing engineers at UIC's Energy Resources Center to provide energy-saving kits to 35,000 eligible individuals and/or families.

DOE's HPC4Manufacturing Program Seeks Industry Proposals

The Department of Energy (DOE) on Feb. 1 announced up to $3 million will be made available to U.S. manufacturers for public/private projects aimed at applying high performance computing to industry challenges for the advancement of energy innovation.

Elke-Caroline Aschenauer Awarded Prestigious Humboldt Research Award

UPTON, NY -- Elke-Caroline Aschenauer, a senior physicist at the U.S. Department of Energy's Brookhaven National Laboratory, has been awarded a Humboldt Research Award for her contributions to the field of experimental nuclear physics. This prestigious international award--issued by the Alexander von Humboldt Foundation in Bonn, Germany--comes with a prize of EUR60,000 (more than $70,000 U.

Networking, Data Experts Design a Better Portal for Scientific Discovery

A team of networking experts from the Department of Energy's Energy Sciences Network (ESnet), with the Globus team from the University of Chicago and Argonne National Laboratory, have designed a new approach that makes data sharing faster, more reliable and more secure.


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Deep Dive Into How Electrons Behave

Unprecedented characterization of subsurface electronic states could lead to better semiconductors and seeing new interactions.

How Bacteria Produce Manganese Oxide Nanoparticles

Multiple techniques to characterize an enzyme complex shed light on how bacteria create particles and contribute to global cycles.

Meet the Director: Sergei Nagaitsev

This is one in a series of profiles on directors of the SC-stewarded user facilities. This profile features Sergei Nagaitsev, director of the Fermilab Accelerator Complex.

From 100,000 to 8: Representing Complex Aerosol Patterns with Far Fewer Particles

Study shows how aerosols interacting with clouds can be accurately captured by sparse set of representative particles.

Atomic Vibes During Melting?

Where does the heat go when a glass melts into a liquid? Not to changing the vibrations of atoms....

Taking Solar Energy to the Edge

Engineered stacked perovskite layers harvest light or create light via layer edges.

Putting the P in Photosynthesis of Tropical Forests

Including phosphorus in predictions of photosynthesis may improve models of tropical forests where the supply of the nutrient is limited.

Exploring Past, Present, and Future Water Availability Regionally, Globally

New open-source software simulates river and runoff resources.

Arctic Photosynthetic Capacity and Carbon Dioxide Assimilation Underestimated by Terrestrial Biosphere Models

New measurements offer data vital to projecting plant response to environmental changes.

DRIFTing to Fast, Precise Data

Non-destructive technique identifies key variations in Alaskan soils, quickly providing insights into carbon levels.


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