- Iranians holding Ashura mourning for Imam Hussein
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- Iran expands nuclear R&D program: Rouhani
- Iran goes ahead in space tech, despite US sanctions: ISA
- Resistance Front undermining Israeli regime power: Top commander
- Iran: 7 crew members of detained UK ship freed
- US addiction to sanction threaten its power: Iran’s Zarif
- Dutch role in 2007 Stuxnet attack on Iran’s nuclear site under scrutiny: Iraian FM Spox.
- Iran: ‘Sustainable Security 2019’ kicks off in Caspian Sea
- Iran’s Zarif leaves Tehran for Moscow
- Shiraz University ranked 1st in liver transplantation: Iranian health official
- Japan’s Abe to meet Iran’s president to discuss easing tension in region
- Downing of US spy drone shattered war threats against Iran: Top IRGC commander
- IAEO head reports development of first ion-therapy hospital in west of Asia
- Iranian Taekwondo team wins 2019 World Cup championship
- US sanctions failed to force Iran to buckle: Report
- Crew fixing Iran oil tanker broken down in Red Sea
- As Iranians hold nerves, US seeks to scare off trade
- Leader expresses concern about Kashmir, urges India to follow fair policy toward Muslim-majority region
- Iran saffron exports down due to smuggling, government restrictions: Exporter
- Iran FM warns US against ‘serious miscalculation’ in Persian Gulf
- Iran’s resistance policy led to release of oil tanker: MP
- Iran in reverse brain drain as top students come home in rising numbers
- Iran official calls for compensation for tanker seizure
- Iran hails N Korea for standing against ‘unilateral’ US demands
- Shia Muslims celebrate Eid Al-Ghadir
- North Korea praises Iran’s anti-US struggle
- Zarif says to meet French president Friday
- Iranian court hearing case of UK oil tanker
- Over half of Japanese voters oppose joining US-led anti-Iran coalition in Persian Gulf: Poll
- IME trade ups by 21 percent in July
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- US anti-Iran policy in high seas harms Europeans: LA Times
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- Iran, Finland share views on Persian Gulf dialogue forum: Zarif
- Iran warns US against seizure of oil tanker
- Iraq eager to benefit from Iranian Police’s experience
- Iran planning 3rd step to reduce nuclear commitments: Spokesman
- Leader grants clemency to over 1,000 Iranian inmates
- Registration for Arbaeen Pilgrimage to begin in Iran on Friday
- Iran, Iraq agree to reopen Khosravi border crossing
- Iran deplores suicide attack at Kabul wedding hall
- Iran to hold int'l hand-woven carpets expo
- Zarif meets with Iran-Kuwait Friendship Group members
- Adrian Darya oil tanker not under any sanctions, says Iran envoy
- ‘Iran to stay in nuclear deal as long as its interests are met’
- India envoy happy with positive trend of trade with Iran
- Iran’s annual export of white meat tops 2.5m tons: Minister
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- Gibraltar releases Iran-operated tanker despite US pressure
TEHRAN, Nov 24_Scientists have developed a new advanced material that can convert a toxic pollutant produced by burning fossil fuels into useful industrial chemicals using only water and air.
TEHRAN, Young Journalists Club(YJC)_New research led by The University of Manchester, has developed a metal-organic framework (MOF) material that provides a selective, fully reversible and repeatable capability to capture nitrogen dioxide (NO2), a toxic air pollutant produced particularly by diesel and bio-fuel use. The NO2 can then be easily converted into nitric acid, a multi-billion-dollar industry with uses including, agricultural fertilizer for crops; rocket propellant and nylon, TechXplore reported.
MOFs are tiny three-dimensional structures which are porous and can trap gasses inside, acting like cages. The internal empty spaces in MOFs can be vast for their size, just one gram of material can have a surface area equivalent to a football pitch.
The highly efficient mechanism in this new MOF was characterized by researchers using neutron scattering and synchrotron X-ray diffraction at the Department of Energy's Oak Ridge National Laboratory and Berkeley National Laboratory, respectively. The team also used the National Service for Electron Paramagnetic Resonance Spectroscopy at Manchester to study the mechanism of adsorption of NO2 in MFM-520. The technology could lead to air pollution control and help remedy the negative impact nitrogen dioxide has on the environment.
Asin Nature Chemistry, the material, named MFM-520, can capture nitrogen dioxide at ambient pressures and temperatures—even at low concentrations and during flow—in the presence of moisture, sulfur dioxide and carbon dioxide. Despite the highly reactive nature of the pollutant, MFM-520 proved capable of being fully regenerated multiple times by degassing or by treatment with water in air—a process that also converts the nitrogen dioxide into nitric acid.
"This is the first MOF to both capture and convert a toxic, gaseous air pollutant into a useful industrial commodity." said Dr. Sihai Yang, a lead author and a senior lecturer at The University of Manchester's Department of Chemistry. "It is also interesting that the highest rate of NO2 uptake by this MOF occurs at around 45 degrees Centigrade, which is about the temperature of automobile exhausts."
source:tasnimnews
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