News on titanium dioxide

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151 Current news about the topic titanium dioxide

New world record for direct solar water-splitting efficiency

06-Jul-2018 - Hydrogen will play a central role as a storage medium in sustainable energy systems. An international team of researchers has now succeeded in raising the efficiency of producing hydrogen from direct solar water-splitting to a record 19 per cent. They did so by combining a tandem solar cell of ...

electrochemistry hydrogen photovoltaics +5

New material for splitting water

20-Jun-2018 - Solar energy is clean and abundant. But when the sun isn't shining, you must store the energy in batteries or through a process called photocatalysis -- in which solar energy is used to make fuels. In photocatalytic water splitting, sunlight separates water into hydrogen and oxygen. The hydrogen ...

batteries computer simulations fuels +9

Polarized light: A simple route to highly chiral materials

11-May-2018 - Chirality is at the heart of chemical research and much technology. For organic chemists, choosing between the left- and right-handed isomers of molecules is all part of a day's work. However, many solid materials also have enantiomeric forms, giving rise to a range of applications. Organic ...

chirality circularly polarized light electron microscopy +11

Mat baits, hooks and destroys pollutants in water

23-Mar-2018 - A polymer mat developed at Rice University has the ability to fish biologically harmful contaminants from water through a strategy known as "bait, hook and destroy." Tests with wastewater showed the mat can efficiently remove targeted pollutants, in this case a pair of biologically harmful ...

contaminants drinking water endocrine disruptors +19

Nanomaterials: What are the environmental and health risks?

28-Feb-2018 - From nanoscale silver to titanium dioxide for air purification, the use of nanomaterials of high commercial relevance proves to have clear benefits as it attracts investments, and raises concerns. 'Nano' sized materials (a nanometre is one millionth of a millimetre) could pose environmental and ...

carbon nanotubes ceramics coatings +9

Breakthrough process for directly converting methane to methanol

04-Dec-2017 - The direct oxidation of methane--found in natural gas--into methanol at low temperatures has long been a holy grail. Now, researchers at Tufts have found a breakthrough way to accomplish the feat using a heterogeneous catalyst and cheap molecular oxygen, according to a paper published by a team ...

carbon carbon monoxide carbonyl compounds +21

New nanomaterial can extract hydrogen fuel from seawater

06-Oct-2017 - It's possible to produce hydrogen to power fuel cells by extracting the gas from seawater, but the electricity required to do it makes the process costly. UCF researcher Yang Yang has come up with a new hybrid nanomaterial that harnesses solar energy and uses it to generate hydrogen from seawater ...

biomass catalysts hydrogen +9

More solar power thanks to titanium

29-Aug-2017 - Earth-abundant, cheap metals are promising photocatalytic electrode materials in artificial photosynthesis. A team of Chinese scientists now reports that a thin layer of titania beneath hematite nanorods can boost the performance of the photoanode. As outlined in their report, the nanostructured ...

artificial photosynthesis chemical engineering conductivity +8

Krahn Chemie is taking over the distribution for FP-Pigments in Germany

24-Aug-2017 - Krahn Chemie GmbH and the Finnish company FP-Pigments Oy started to cooperate in the sales and marketing of opacity pigments for paint, coating and printing ink applications in Germany. The FP-Pigment series consist of titanium dioxide which is fixed with calcium carbonate. They have been ...

Krahn Chemie pigments sales cooperation +1

Metal instability achieves energy-efficient nanotechnology

02-Aug-2017 - Osaka University and Italian researchers show their nanowire resonators can be used to miniaturize energy-efficient electronics Computers that fit in our pockets, television screens no thicker than a door, and cars only slightly bigger than their passengers, technology is constantly getting ...

energy efficiency etching magnesium oxide +8