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149 Current news about the topic titanium dioxide

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New photocatalyst made from an aerogel for more efficient hydrogen production

Airy and efficient

02-Dec-2021

Researchers at ETH Zurich have developed a new photocatalyst made from an aerogel that could enable more efficient hydrogen production. The key is sophisticated pretreatment of the material. Aerogels are extraordinary materials that have set Guinness World Records more than a dozen times, ...

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Double-duty catalyst generates hydrogen fuel while cleaning up wastewater

19-Mar-2021

Hydrogen is a pollution-free energy source when it's extracted from water using sunlight instead of fossil fuels. But current strategies for "splitting" or breaking apart water molecules with catalysts and light require the introduction of chemical additives to expedite the process. Now, ...

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Microswimmers move like moths to the light

Impressive behavior of synthetic microswimmers studied

30-Nov-2020

The Freigeist group at TU Dresden, led by chemist Dr Juliane Simmchen, has studied an impressive behavior of synthetic microswimmers: as soon as the photocatalytic particles leave an illuminated zone, they flip independently and swim back into the light. This promising observation and its ...

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FLASH reveals ultrafast dynamics of photocatalysis

Free electron laser study sheds light on the mechanism and timescale of the photocatalytic oxidation of carbon monoxide on titanium oxide

30-Nov-2020

An international team of scientists have studied, for the first time, the light induced oxidation of carbon monoxide (CO) to carbon dioxide (CO2) on the surface of an oxide photocatalyst in real-time using the soft X-ray free-electron laser FLASH combined with theoretical calculations. According ...

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'Blinking" crystals may convert CO2 into fuels

Unusual nanoparticles could could be useful for environmental cleanups, sensors, electronic devices and solar cells

21-Jul-2020

Imagine tiny crystals that "blink" like fireflies and can convert carbon dioxide, a key cause of climate change, into fuels. A Rutgers-led team has created ultra-small titanium dioxide crystals that exhibit unusual "blinking" behavior and may help to produce methane and other fuels, according to ...

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INEOS set to acquire Cristals North American Titanium Dioxide Business from Tronox for $700 million

21-Mar-2019

INEOS Enterprises has announced that it has signed an agreement to acquire The North American business of National Titanium Dioxide Company Limited (Cristal) from Tronox Limited for $700 million. Cristal’s North American business includes two-plants located at the Ashtabula Ohio (US) complex. The ...

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Broadband achromatic metalens focuses light regardless of polarization

New design doubles the efficiency of the metalens

23-Jan-2019

We live in a polarized world. No, we aren't talking about politics -- we're talking about light. Much of the light we see and use is partially polarized, meaning its electric field vibrates in specific directions. Lenses designed to work across a range of applications, from phone cameras to ...

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Solving a 75-year-old mystery might provide a new source of farm fertilizer

29-Nov-2018

The solution to a 75-year-old materials mystery might one day allow farmers in developing nations to produce their own fertilizer on demand, using sunlight and nitrogen from the air. Thanks to a specialized X-ray source at Lawrence Berkeley National Laboratory, researchers at the Georgia ...

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Colorful world: Ceresana analyzes the pigment market

26-Nov-2018

The market research company Ceresana analyzed the entire pigment market already for the fifth time: 10 million tonnes were sold worldwide in 2017. The majority was utilized by the industry in Asia-Pacific. Due to above-average growth rates, demand in this region will presumably rise to almost 6.3 ...

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A new nanocatalyst for obtaining hydrogen

19-Oct-2018

A chemist from RUDN was the first to use catalysts with ruthenium nanoparticles to obtain hydrogen under the influence of visible light and UV radiation. In the future, such catalysts may be used for large-scale production of hydrogen fuel under the influence of sunlight.Photochemical reactions ...

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