Diamonds were once used for jewelry due to their rare value. Later, mass production technology was established, and due to its material superiority in terms of hardness, it is now mainly used for cutting tools.
Diamond is originally an insulator and does not conduct electricity, but diamond doped with boron is attracting attention as a new application for use as an electrode.
Efficient generation of ozone water and OH radicals
Wide potential window for sensitive sensing of normally undetectable substances
Enables organic synthesis without the use of heavy metals
Transform carbon dioxide in water into formic acid, a carrier of hydrogen
With diamond electrodes, can produce ozonated water, which is safer than ozone gas
Ozone water can be produced by electrolysis of water using conductive diamond electrodes.
Ozonized water is water that contains ozone and OH (hydroxyl radical) dissolved in it, and is highly effective in sterilizing, killing viruses, and decomposing persistent organic matter.
When compared to air and water, ozone dissolved in water has more molecules and is more effective at the same concentration.It is also safer than ozone gas, easier to handle because it is a liquid, and more effective on the target object.
Since ozone (O3) is an unstable molecule, it cannot exist in the ozone state for a long period of time, and it has the property of releasing one oxygen atom (O) to return to the oxygen molecule (O2).
The self-decomposed oxygen atoms take away hydrogen atoms (H) from the water molecule (H2O), resulting in the formation of OH radicals.?Since the OH radicals are unstable, lacking electrons, these take electrons from nearby organic matter to stabilize. Since they are highly reactive and have a strong oxidizing power, the organic materials deprived of electrons will have their bonds broken down. This action results in sterilization, deodorization, and bleaching.
Ozone water has a strong oxidizing effect, and is effective for sterilization, mold prevention, and deodorization. Looking at the redox potentials of various oxidants in the table below, ozonized water + OH radical is in the second position after fluorine, indicating that it has a strong oxidizing effect.
In addition, ozonated water has the property of returning to oxygen after reacting with bacteria and odor-causing substances. In other words, ozone water has no persistence.
Other sterilization methods, such as alcohol, cannot destroy cell walls, membranes, and chromosomes, but OH radicals in ozone water can, so it can kill (oxidize and decompose) bacteria and viruses in an instant.
In addition, it can deodorize odors by organizing the organic substances that cause odors.
Ozone (O3), which is unstable and cannot maintain its structure for a long time, releases oxygen atoms (O) and becomes oxygen (O2). The released oxygen atoms (O) react with all organic materials and oxidize them to return to a stable state. The cell walls of viruses, bacteria, etc. are instantly destroyed and die.
Water dissolved with ozone contains OH and oxygen (O2) when the oxygen atoms (O) released from ozone (O3) react with water (H2O).
OH is a type of reactive oxygen species that reacts with and oxidizes all organic matter in the environment.Its oxidizing power is several hundred times more powerful than that of gaseous ozone.
In addition, this OH instantly kills (oxidizes and decomposes) viruses, bacteria, etc., but returns to oxygen, leaving no residue, unlike sterilization using chemicals such as chlorine.
Ozone water is highly effective in removing various bacteria and viruses, and is not only used in medical institutions, but also used for disinfection in schools, nursery schools, and elderly care facilities.
There are viruses such as the new coronavirus and the influenza virus for which alcohol disinfection is effective, and the norovirus for which alcohol disinfection is not effective, but ozone water is said to be effective against both viruses.
Ozone is recognized as an existing food additive and has been used for a long time in some foods and their production.
Since it does not affect the taste of food and does not produce chloroform, it is suitable for cleaning cut vegetables and food ingredients that need to delay spoilage and maintain freshness.It is also used for cleaning and thawing oysters and bivalve shellfish to prevent norovirus infection due to its virus-killing and sterilizing properties.
By using ozonated water instead of chlorine, which is used in the paper bleaching process at paper mills, it is possible to reduce the generation of dioxin and thus reduce damage to the environment.In addition, by changing the bleaching process from chlorine to ozone water, it is possible to reduce the odor generated in the factory by using the organic decomposition power of ozone.
By converting the bleaching process of linen and towels to ozone water bleaching, we have been able to significantly reduce carbon dioxide emissions and the cost of chemicals used. This is attracting attention because it can contribute to the formation of a sustainable society.
In addition, bleaching with ozone is an environmental technology officially recognized by the government, having been certified as an Eco Mark standard by the Japan Environment Association in June 2008.
Diamond electrodes have not been widely used due to their short life and high cost. At Tomei Diamond, we have developed diamond electrodes that do not delaminate by using new technology in the manufacturing of substrates, etc., and have achieved a long life.
No matter how wonderful a product concept is, it is meaningless if it cannot be realized. We work together with our customers to rationally and creatively solve difficult problems that engineers in the field would normally give up on, using our knowledge accumulated over 60 years and new technologies developed in cooperation with university laboratories.
From inquiries about our products to consultations about their applications We provide products and services to meet the needs of companies that are considering developing products using industrial diamonds.
