Concentration difference photochemical reactor
OwnerKong-Wei Cheng, Jau-Chyn Huang +2inventors
InventorsKong-Wei Cheng, Jau-Chyn Huang, Ching-Sung Hsiao, Pei-Shan Yen
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Abstract
A concentration difference photochemical reactor includes of a photochemical reaction tub and a photocatalyst reaction plate. The photocatalyst reaction plate is formed by combining in sequence a photocatalyst, a metal, a conductive carrier, and a reduction electrode to reduce its internal resistance barrier and increase the electron-hole separation rate excited by photons. By adjusting the concentration difference in the solutions inside the photochemical reaction tub, the location of chemical reactions is changed to increase the efficiency and reduce the use of a sacrificing reagent without the restrictions of thermodynamics.
Claims21
A concentration different photochemical reactor, comprising:
- a photochemical reaction tub, which has more than one solution for reactants, an oxidation tub, and a reduction tub, the solution in the oxidation tub having pH=6˜11, the solution in the reduction tub having pH=2˜7, and the pH value of the former is higher than the pH value of the latter;
- and
- a photocatalyst reaction plate, which is installed in the photochemical reaction tub and has in sequence:
- a photocatalyst, which is provided in the oxidation tub to receive optical energy, to generate a plurality of electron-hole pairs, and to have the holes participate an oxidation reaction;
- a metal, which is connected to the photocatalyst to form a low contact resistance with the photocatalyst, preventing the electrons and the holes from recombination;
- a conductive carrier, which is connected to the metal for transmitting the electrons;
- and
- a reduction electrode, which is provided in the reduction tub and connected to the conducive carrier to receive the electrons and to have the electrons participate in a reduction reaction.
Dependencies are inferred from the claim text.