company news about UV LED-assisted photocatalytic decomposition of pollutants: a precise green technology for environmental governance

Photocatalytic degradation is widely recognized as a promising solution for environmental pollution control, particularly excelling in decomposing volatile organic compounds (VOCs) and recalcitrant pollutants in air and water. The introduction of UV LED technology has completely resolved the pain points of traditional light sources in terms of efficiency, energy consumption, lifespan, and safety. By providing precise wavelengths and efficient excitation, it propels photocatalytic processes into a new stage of precision and industrial application.

The core of photocatalytic decomposition is the use of semiconductor photocatalysts, the most common of which is titanium dioxide. When TiO2 absorbs light energy of a specific wavelength (usually ultraviolet light), electrons (e-) in its valence band are excited to the conduction band, leaving holes (h+) in the valence band.

Traditional photocatalytic systems primarily rely on low-pressure mercury lamps, but mercury lamps suffer from problems such as spectral mismatch, short lifespan, high energy consumption, and mercury pollution. UV LED technology exhibits overwhelming advantages in photocatalytic applications:

1. Precise Wavelength Matching:
   The optimal excitation wavelength for TiO₂ is mainly concentrated around 385 nm (depending on the crystal form; for anatase, it is approximately 387 nm). UV LED advantages: Your UV LED products can provide extremely narrow bandgap, high-purity 385 nm or 365 nm light sources. This ensures that almost all input light energy is effectively absorbed by TiO₂ for photoexcitation, greatly improving quantum efficiency and energy efficiency ratio.
2. Cold Source Operation:
   UV LED advantages: UV LEDs are cold light sources, generating very little heat during operation. This is crucial for air purification equipment that handles heat-sensitive VOCs or operates in confined spaces, preventing secondary pollution or safety hazards that may be caused by heat.
3. Advantages of long lifespan and high stability UV LEDs:
   Compared to the limited lifespan of mercury lamps, UV LEDs have an ultra-long lifespan of tens of thousands of hours, achieving instantaneous full-power output without preheating, reducing system maintenance costs and downtime, and ensuring the continuous and stable operation of the treatment system.
4. Compact and Integrated Design
   UV LED Advantages: UV LED chips are small in size, allowing for flexible array and modular designs. They are easily integrated into complex pipes, reactors, or small household purification devices, enabling distributed and modular pollution control.

UV LED-assisted photocatalytic decomposition technology represents a significant shift in environmental governance from "extensive treatment" to "precision decomposition." With its perfect match to the absorption spectrum of TiO₂, ultra-high energy efficiency, and excellent operational stability, UV LEDs have become the core light source for next-generation air purification, water treatment, and self-cleaning materials. Super-curing Opto-Electronic CO., Ltd. will continue to invest in research and development, providing highly customized UV LED excitation sources to support the upgrading of the environmental protection industry and jointly build a healthier and more sustainable future.