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:9/19/2014)... -- Nxt-ID, Inc. (Nasdaq: NXTD and NXTDW) ("Nxt-ID" ... m-commerce market, updates the "Wocket in Your Pocket" celebrity ad campaign, ... middleweight weight classes, Vinny Pazienza (PAZ). ... of Thrones actor Ciaran Hinds and Sons ... Katey Sagal have been cast in Bleed for This ...
(Date:9/18/2014)... University researchers have developed a unique method to use ... in rural areas. , The first microbe-powered, self-sustaining ... quick way to clean up waste from large farming ... , Professor Haluk Beyenal and graduate student Timothy ... discuss the system in the online edition of ...
(Date:9/18/2014)... BUFFALO, N.Y. A sleep-promoting circuit located deep in ... deep sleep. Discovered by researchers at Harvard School of ... and Biomedical Sciences, this is only the second "sleep ... to be both necessary and sufficient to produce deep ... Neuroscience , the study demonstrates that fully half of ...
Breaking Biology News(10 mins):NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 2NXT-ID's Vinny Paz Celebrity Ad Wocket Update: Katey Sagal and Ciaran Hinds Attached to His Upcoming Movie 3Researchers develop unique waste cleanup for rural areas 2No sedative necessary: Scientists discover new 'sleep node' in the brain 2
... naturalist Charles Darwin on the Galapagos Islands, researchers have ... on a particular island, can lead to the formation ... Natural selection is a process whereby heritable traits ... while unfavorable heritable traits become less common. Over time, ...
... spider silk. Stretch it. Bend it. Soak it. Dry it out. ... and can expand nearly a third greater than its original length ... stronger than Kevlar, the man-made fiber used in bulletproof vests. ... is to know about the remarkable physics of spider silk, but ...
... Preserving genetically diverse local crops in areas where small-scale ... Penn State geographer, who is part of an international ... in hotspots of Bolivia, Peru and Mexico. Hotspots ... crops has exploded over the past decade, noted Karl ...
Cached Biology News:LSU professor discovers how new corals species form in the ocean 2LSU professor discovers how new corals species form in the ocean 3Stanford researcher sheds new light on the mysteries of spider silk 2Stanford researcher sheds new light on the mysteries of spider silk 3Stanford researcher sheds new light on the mysteries of spider silk 4Preserving biodiversity can be compatible with intensive agriculture 2Preserving biodiversity can be compatible with intensive agriculture 3
(Date:9/18/2014)... Sept. 18, 2014 About POCT ... performed outside a clinical laboratory. It helps in ... appropriate treatments and medication. POCT is gaining popularity ... lifestyle diseases such as diabetes, heart disease, and ... devices are standardized to minimize errors during the ...
(Date:9/18/2014)... 18, 2014 A novel robotic system ... scanner is currently being tested as part of a ... in Boston with the aim of determining if the ... prostate cancer biopsies faster, more accurate, less costly, and ... has the potential to deliver prostate cancer therapies with ...
(Date:9/18/2014)... DUBLIN, Ireland , September 18, ... ,Research and Markets ( http://www.researchandmarkets.com/research/czvg3s/biocompatible ) ... "Biocompatible Materials - Global Strategic ... offering. ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ,This report ... Materials in US$ Million by the ...
(Date:9/18/2014)... 2014 On Tuesday, Secretary of Energy ... Risch for National Lab Day on the Hill. The ... national laboratory system. Durbin and Risch also formally launched ... awareness of the reach of the national labs as ... address some of our nation's most pressing challenges. , ...
Breaking Biology Technology:POCT Market in China 2014-2018 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 2Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 3Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 4Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 5Worcester Polytechnic Institute Participates in Clinical Trial for MRI-Compatible Robot Designed to Improve Accuracy of Prostate Cancer Biopsies 6Biocompatible Materials - Global Strategic Business Report 2014 2Biocompatible Materials - Global Strategic Business Report 2014 3Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 2Lab Day Highlight Labs' Contribution to U.S. Competitiveness and Innovation 3
... Sky One,Medical, Inc. ("China Sky One Medical" or ... integrated pharmaceutical company producing over-the-counter,drugs in the People,s ... production at Peng Lai Jin Chuang Company ("Jin ... 14, 2008., Jin Chuang, a subsidiary of ...
... (Nasdaq: NLTX ), today announced interim data from its ... natriuretic,peptide, in patients hospitalized for acute heart failure., ... pressure -- Statistically significant ... right atrial pressure -- Trend toward increase in ...
... Va., Oct. 14 Insmed Inc. (Nasdaq,CM: INSM), a ... will seek shareholder approval to implement a reverse,stock split, ... November,24, 2008, in an effort to meet the minimum ... Market., On September 3, 2008, the Company announced ...
Cached Biology Technology:China Sky One Medical, Inc. Starts Production at Newly Acquired Facility and Reaffirms Guidance 2China Sky One Medical, Inc. Starts Production at Newly Acquired Facility and Reaffirms Guidance 3Nile Therapeutics Announces Positive Interim Data from Phase 2a Study of CD-NP in Patients with Heart Failure 2Nile Therapeutics Announces Positive Interim Data from Phase 2a Study of CD-NP in Patients with Heart Failure 3Nile Therapeutics Announces Positive Interim Data from Phase 2a Study of CD-NP in Patients with Heart Failure 4Nile Therapeutics Announces Positive Interim Data from Phase 2a Study of CD-NP in Patients with Heart Failure 5Insmed to Seek Shareholder Approval for Reverse Split 2Insmed to Seek Shareholder Approval for Reverse Split 3
Cell Culture Flask, 175 cm, tissue-culture treated polystyrene, barcoded...
... an aqueous solution that contains a purified ... a PBS buffer (phosphate buffered saline), pH ... a combination of 0.02% methylisothiazolone and 0.02% ... Stabilizer provides optimum performance for both microsphere ...
... clone K28/86.2, PDZ Domain GenBank ... : GST fusion to residues 77-299 ... Tris pH 7.4, 0.075M NaCl containing ... evaluated by immunoblot on rat brain ...
... The ProteoPrep 20 Plasma Immunodepletion Kit ... proteins from human plasma or serum in ... enables deeper penetration into the plasma proteome ... single or multidimensional chromatography or go straight ...
Biology Products: