New Magic of Photocatalysis Turns Seawater into Fuel (2)

This is a mixed monolayer metal two-dimensional nano material. Scientists first used ultra-thin nano titanium dioxide, titanium dioxide is a common photocatalyst material, in titanium dioxide engraving nanopore, form a carrier. And then use the two tungsten sulfide (MO) nano film, two tungsten sulfide and molybdenum disulfide is a single-layer semiconductor transition metal materials has attracted much attention in recent years, due to the direct band gap semiconductors, high quantum yield, and has a significant effect on the valley polarization, optoelectronic applications has better effect than graphene.

Tungsten disulfide coated titanium dioxide nanoholes, the combination of both, the photocatalytic effect has been greatly improved, the effect is more than twice as much as titanium dioxide alone. Because the finite range of light can be converted into energy and the UV - visible light can be converted to the wavelength of near infrared light, it becomes more extensive.

Mr. Yang said, "with this efficient photocatalyst, we can absorb more solar energy than conventional materials from the light, and through the conversion of solar energy into hydrogen energy, there is a lot of sea water around Florida, and the sunshine is very good. If the industry is finally realized, it will provide a growth point for Florida's economy. The team is very confident about it.

In many cases, the production of chemical fuels from solar energy is a better solution than the solar panel. Compared with the traditional methods, the photocatalytic technology used by Mr. Yang will make hydrogen production easier and cheaper, and it can also store electricity in the battery, easy to store and transport. Of course, the extraction of hydrogen fuel from water now is just the beginning, Mr. Yang's team continues to study, their ultimate goal is the hydrogen production from wastewater, if this mission succeeds, it will be conducive to a very important scientific treasure of mankind.

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Read more: New Magic of Photocatalysis Turns Seawater into Fuel (1)

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