When a photon of light is absorbed by a dye molecule, an electron is knocked into the titanium dioxide.
ECONOMIST: A new type of cell may bring ��solar�� energy indoors
However, in one-day internationals a mandatory ball change is now enforced after 34 overs because the white titanium dioxide dye rubs off the leather.
For the electrolysis of titanium dioxide, the preferred electrolyte is molten calcium chloride.
Dallas-based Kronos announced Thursday that it would be raising the price of titanium dioxide, an essential ingredient in many paints, but 25% and higher.
FORBES: Respecting Caffeine, Steel, Zeus und Da Vinci Surgeons
Some studies have linked the inhalation of titanium dioxide and silicon dioxide dust to cancer in animals, but it has not been proven in humans.
The system the researchers tested used a type of solar cell known as dye-sensitized solar cells, a lightweight and inexpensive type where the active layer is composed of titanium dioxide, rather than the silicon used in conventional solar cells.
Dr Kamat and his team covered the surface of an experimental cell made of cadmium sulphide, zinc oxide and titanium dioxide with nanotubes, so that the tubes stuck up from the surface like hairs.
Another breakthrough is the transparent conductor made of a mixture of silver nanowire and titanium dioxide nanoparticles, which was able to replace the opaque metal electrode used in the past.
ENGADGET: UCLA creates transparent solar cell, dreams of current generating windows
The dye molecules themselves are bound to tiny particles of titanium dioxide, a less-famous (but cheaper) semiconductor than silicon, and the whole assembly is immersed in an electrolyte and sandwiched between two electrodes.
ECONOMIST: A new type of cell may bring ��solar�� energy indoors
Instead, one of the electrodes dipped into the calcium chloride is made of solid titanium dioxide.
Titanium dioxide is commonly used as the white pigment in sunscreen.
Comprising of seven tiny layers, each 50 to 100 nanometers in height, the coating is made of silicon dioxide and titanium dioxide nanorods positioned at an oblique angle.
UTC's solution: Pass the return air through an aluminum filter sprayed with titanium dioxide that, hit with ultraviolet rays, sets off a chemical reaction that breaks down nasty organic compounds like benzene and formaldehyde into carbon dioxide and water.
Researchers at the University of California, Santa Barbara plan to break that silence with genetically engineered proteins that can make silicon dioxide or titanium dioxide structures like those used in the computer chips and solar cells that we hold dear.
Over the years Simmons has accumulated assets engaged in businesses ranging from titanium dioxide pigment production to waste management to precision ball bearings manufacturing.
FORBES: The U.S. Billionaire Whose Stock Increased The Most In 2011
Titanium dioxide is set to fall another 5% in the fourth quarter.
The conglomerate makes a wide variety of products, from body armor to a whitening pigment called titanium dioxide.
FORBES: DuPont Shares Chopped Down On Lower Earnings, Dimmed Outlook
Also, scientists at the Hong Kong Polytechnic University have been able to build a nano-thin layer of particles of titanium dioxide, a substance that reacts with sunlight to break down dirt and other organic material.
应用推荐