Navigation Links
Rice scientists ID new catalyst for cleanup of nitrites
Date:11/25/2013

HOUSTON -- (Nov. 25, 2013) -- Chemical engineers at Rice University have found a new catalyst that can rapidly break down nitrites, a common and harmful contaminant in drinking water that often results from overuse of agricultural fertilizers.

Nitrites and their more abundant cousins, nitrates, are inorganic compounds that are often found in both groundwater and surface water. The compounds are a health hazard, and the Environmental Protection Agency places strict limits on the amount of nitrates and nitrites in drinking water. While it's possible to remove nitrates and nitrites from water with filters and resins, the process can be prohibitively expensive.

"This is a big problem, particularly for agricultural communities, and there aren't really any good options for dealing with it," said Michael Wong, professor of chemical and biomolecular engineering at Rice and the lead researcher on the new study. "Our group has studied engineered gold and palladium nanocatalysts for several years. We've tested these against chlorinated solvents for almost a decade, and in looking for other potential uses for these we stumbled onto some studies about palladium catalysts being used to treat nitrates and nitrites; so we decided to do a comparison."

Catalysts are the matchmakers of the molecular world: They cause other compounds to react with one another, often by bringing them into close proximity, but the catalysts are not consumed by the reaction.

In a new paper in the journal Nanoscale, Wong's team showed that engineered nanoparticles of gold and palladium were several times more efficient at breaking down nitrites than any previously studied catalysts. The particles, which were invented at Wong's Catalysis and Nanomaterials Laboratory, consist of a solid gold core that's partially covered with palladium.

Over the past decade, Wong's team has found these gold-palladium composites have faster reaction times for breakin
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Stanford scientists develop gene therapy approach to grow blood vessels in ischemic limbs
2. Queens scientists seek vaccine for Pseudomonas infection
3. Scientists produce eye structures from human blood-derived stem cells
4. American Society of Plant Biologists honors early career women scientists
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Scientists discover new method of proton transfer
7. Salk scientists open new window into how cancers override cellular growth controls
8. WileyChina.com - Now Featuring Bespoke Pages for China’s Life Scientists
9. Scientists win $2 million to study new pathway in development and maintenance of lymphoma
10. UGA scientists reveal genetic mutation depicted in van Goghs sunflower paintings
11. Genetic mutation depicted in van Goghs sunflower paintings revealed by scientists
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Rice scientists ID new catalyst for cleanup of nitrites
(Date:5/8/2015)... May 8, 2015 Synaptics Inc. (NASDAQ: SYNA ... that members of the executive management team will present at ... Technology, Media and Telecom Conference Date: May 18, 2015 ... Boston, MA Cowen and Company ... 2:45pm ET Location: The New York Palace Hotel, ...
(Date:4/27/2015)... , Apr. 27, 2015 NXT-ID, Inc. ... biometric authentication company focused on the growing mobile commerce ... shipping to pre-order customers the first week of May, ... the month of May. Gino ... significant milestone for the company as Wocket® enters the ...
(Date:4/17/2015)... April 17, 2015 ... and technological advancement to drive biometric systems market ... 2020   According to a recently ... Systems Market Forecast &  Opportunities, 2020 ", biometric systems market in ... register growth at CAGR of over 22% through ...
Breaking Biology News(10 mins):Synaptics to Present at Upcoming Investor Conferences 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3
... While we grapple with the impact of climate change, archaeologists ... to cope with the last ice age. "The period ... is the most significant climatic event ever faced by humans ... University in Cairns said. Research recently published in ...
... by JPMorgan Chase & Co. (NYSE: JPM) and the ... time, allow individual and institutional investors the opportunity to ... to save millions of lives in low-income countries. ... of investors including anchor support from Grand Challenges ...
... The results of the new study imply that it is ... sweet flavours. Our pleasure in consuming sweet solutions is driven ... provides: greater reward in the brain is attributed to sugars ... led the study at Yale University School of Medicine USA, ...
Cached Biology News:Climate change nothing new in Oz 2New investment fund will advance late-stage vaccines, other global health technologies 2New investment fund will advance late-stage vaccines, other global health technologies 3New investment fund will advance late-stage vaccines, other global health technologies 4The brain cannot be fooled by artificial sweeteners 2
(Date:5/28/2015)... (PRWEB) May 28, 2015 DryLet, ... use in applications such as animal waste reduction, ... oil reduction in wastewater treatment plants and restaurant ... the World Pork Expo, June 3-5 in Des ... year in a Wall Street Journal article because ...
(Date:5/28/2015)... May 28, 2015  PDS Biotechnology Corp. announces ... treatment targeting HPV-16, has generated strong T-cell responses ... pre-cervical cancer is treated by surgical removal of ... effective non-surgical alternative. Results show that it primes ... recognize, target, and kill precancerous and cancerous cells ...
(Date:5/28/2015)... May 28, 2015 Biscayne Pharmaceuticals, Inc ... of its growth hormone-releasing hormone (GHRH) technology will be discussed ... ASCO Annual Meeting. The data show that the family ... GHRH blockers, is present on many primary breast cancer ... that GHRH antagonists could have broad anti-cancer potential in ...
(Date:5/28/2015)... 28, 2015 CD-adapco, the largest ... software, announced today it is joining the consortium ... provide state-of-the-art engineering simulation tools for analyzing particle ... and experiences in analyzing particle flow that will ... advance the understanding of flow modeling solutions. , ...
Breaking Biology Technology:DryLet to Showcase Patented ManureMagicâ„¢ at the 2015 World Pork Expo, June 3-5 in Des Moines, Iowa 2PDS Biotechnology reports positive Phase I clinical trial results in proprietary HPV-Cancer Immunotherapy 2Data Presented At 2015 ASCO Annual Meeting Shows Biscayne Pharmaceuticals' GHRH Antagonist Target Is Expressed Across All Breast Cancer Subtypes 2Data Presented At 2015 ASCO Annual Meeting Shows Biscayne Pharmaceuticals' GHRH Antagonist Target Is Expressed Across All Breast Cancer Subtypes 3CD-adapco and PSRI Chartering New Course in Particle Flow Simulations 2
... Calif. The University of California, Riverside has received ... of computing that is beyond the scope of conventional ... is to speed up applications that process large amounts ... image recognition. The money is awarded to UC ...
... Calif., Oct. 5, 2011 SRI International has been ... totaling $14.3 million. The contracts provide SRI up to ... million for pharmacology and pharmacokinetics studies that will be ... These five-year contracts extend SRI,s preclinical studies for ...
... announced the receipt of a two-year $2.8 million grant ... range of charitable, educational and scientific activities through 2013 ... in the life sciences. "As BioCrossroads ... that Lilly Endowment,s significant investment in our initiative has ...
Cached Biology Technology:Physicists to develop new way of electronic computing 2SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 2SRI International Awarded Two National Cancer Institute Preclinical Development Service Contracts 3Two-year $2.8 million Grant from Lilly Endowment Fuels BioCrossroads' Charitable, Educational and Scientific Mission 2Two-year $2.8 million Grant from Lilly Endowment Fuels BioCrossroads' Charitable, Educational and Scientific Mission 3
Anti-Conjugated Quinaldic Acid...
... stain kits are optimized for use ... Dodeca stainers. This silver stain kit ... in polyacrylamide gels and are mass ... concentrate, silver reagent concentrate, background reducer ...
The AVR9-8 stream-select valve is a 9-port, 8-position valve for use with the BioLogic DuoFlow system. This valve is used for high-pressure stream selection....
... Miscellaneous: Versatile stain for staining RNA (bluish-purple), DNA (blue), ... TLC ≥ 90 % Cation traces: Ca ≤ ... mg/kg Cr ≤ 5 mg/kg Cu ≤ 5 mg/kg ... ≤ 5 mg/kg Mn ≤ 5 mg/kg Na ≤ ...
Biology Products: