Category Chemistry/Nanotechnology

Solar-Powered System Converts Plastic and Greenhouse Gases into Sustainable Fuels

Solar-powered reactor for converting plastic and greenhouse gases into sustainable fuels
Solar-powered reactor for converting plastic and greenhouse gases into sustainable fuels
Credit: Reisner Lab

Researchers have developed a system that can transform plastic waste and greenhouse gases into sustainable fuels and other valuable products – using just the energy from the Sun.

The researchers, from the University of Cambridge, developed the system, which can convert two waste streams into two chemical products at the same time – the first time this has been achieved in a solar-powered reactor.

The reactor converts the carbon dioxide (CO2) and plastics into different products that are useful in a range of industries...

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Researchers develop Eco-friendly Materials capable of Purifying Water

Researchers develop eco-friendly materials capable of purifying water

Credit: Daegu Gyeongbuk Institute of Science and Technology (DGIST)

Professor Park Chi-Young’s team successfully developed an atypical porous polymer material that can completely remove phenolic organic contaminants in water at ultra-high speeds. The porous material developed can efficiently remove not only microplastics in the water but also very small-sized volatile organic compounds (VOCs) based on photothermal effect. At the same time, it is expected to be utilized as a high-efficiency adsorption material that can be commercialized in the future as it has cost competitiveness based on raw materials and enables a solar-based water purification process.

Water pollution caused by the rapid development of the chemical industry is a pressing problem, and various water purificatio...

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A type of simple DIY Air Filter can be an effective way to Filter Out Indoor Air Pollutants

A type of simple, DIY air filter can be an effective way to filter out indoor air pollutants
A study from researchers at Brown University and Silent Spring Institute found that inexpensive, easy-to-assemble Corsi-Rosenthal boxes can help reduce exposure to indoor air pollutants. Credit: Ken Zirkel

A team of researchers from Brown University’s School of Public Health, Brown’s School of Engineering and Silent Spring Institute found that simple air filtration devices called Corsi-Rosenthal boxes are effective at reducing indoor air pollutants.

The study, which analyzed the effectiveness of Corsi-Rosenthal boxes installed at the School of Public Health to help prevent the spread of COVID-19, is the first peer-reviewed study of the efficacy of the boxes on indoor pollutants, according to the authors.

Lowering indoor air concentrations of commonly-found chemicals known to pose...

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Producing ‘Green’ Energy – literally – from Living Plant ‘Bio-Solar Cells’

Leaves of a succulent plant. Two pieces of metal marked “anode” and “cathode” are inserted into one leaf and connected to electrical wires.
The ice plant succulent shown here can become a living solar cell and power a circuit using photosynthesis.
Credit: Adapted from ACS Applied Materials & Interfaces, 2022, DOI: 10.1021/acsami.2c15123

Though plants can serve as a source of food, oxygen and décor, they’re not often considered to be a good source of electricity. But by collecting electrons naturally transported within plant cells, scientists can generate electricity as part of a “green,” biological solar cell. Now, researchers reporting in ACS Applied Materials & Interfaces have, for the first time, used a succulent plant to create a living “bio-solar cell” that runs on photosynthesis.

In all living cells, from bacteria and fungi to plants and animals, electrons are shuttled around as part of natural, biochemical proces...

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