Research has been conducted on doping titanium oxide with various elements to enable light absorption in the visible light range.
This document is a report describing the characteristics of "visible light responsive titanium dioxide photocatalytic materials." It is well known that titanium dioxide is a highly effective photocatalyst; however, a challenge has been that its photocatalytic performance is only exhibited under ultraviolet light wavelengths of sunlight. To address this, research has been conducted to enable titanium dioxide to absorb light in the visible light range through doping with various elements. For example, Nb doping and nitrogen doping at oxygen sites have been notable achievements. [Contents] ■ Background/Features ■ Decolorization of methylene blue using visible light LED lighting ■ SEM images of Nb-doped titanium dioxide nanoparticles ■ TEM images of Nb-doped titanium dioxide nanoparticles ■ TEM images of our standard titanium dioxide nanoparticles ■ Information about our new visible light responsive photocatalyst *For more details, please refer to the PDF document or feel free to contact us.
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Our company is engaged in joint development with about 10 large corporations both domestically and internationally, advancing product development aimed at market launch through the provision of advanced materials. In response to market demands, we are developing and providing next-generation batteries, solar cell materials, infrared absorbers, thermochromic inorganic materials, UV-excited coloring agents, non-photocatalytic materials, graphene dispersion liquids, and more. In particular, these materials often require solvent dispersion in addition to size and shape control, and we create and provide dispersion liquids tailored to our customers' needs. Many of the developments are conducted under non-disclosure agreements with our clients, assisting in the development of specialized materials. Our core technology is centered around liquid-phase reactions, and we possess various original reaction processes, enabling us to manufacture nanoparticles and micron-sized particles from materials such as Li, Ta, Si, In, and Ga. We can also produce composite oxides, carbides, and nitrides. Based on customer requests, we prototype and submit samples along with reports. Costs are discussed and considered in consultation with our customers.