Photocatalysis is a technology that uses light energy to drive chemical reactions and is widely applied in areas such as environmental purification, energy conversion, and materials synthesis — for example, water splitting for hydrogen production, CO₂ reduction, or degradation of pollutants. In this process, the photocatalytic bulb (or light source) plays a central role; it is like the "sun" in chemical reactions, providing the necessary energy to excite the catalyst and accelerate the reaction. Photocatalytic bulbs are not ordinary lighting lamps but specially designed experimental light sources with unique characteristics to ensure experimental accuracy and efficiency.
First, photocatalytic bulbs have a broad and tunable spectral range. An ideal light source needs to cover the ultraviolet to visible and even near‑infrared regions (for example 320~780 nm, extendable to 2500 nm) to meet the needs of different catalytic reactions. For example, UV light is suitable for degrading organics, while visible light is commonly used for water splitting or CO₂ reduction. By pairing with filters, users can easily obtain monochromatic or narrow‑band light in specific bands, which helps study catalyst activity at different wavelengths and improves experimental precision.
Second, high optical power and stability are key. Photocatalytic bulbs typically have relatively high total optical power (such as 50 W) and can adapt to different reaction intensities through adjustable power (for example 150~300 W continuously adjustable). More importantly, source stability is critical — long‑term irradiation instability must be controlled within ≤±3%, which means that during long experiments the light output remains constant, reducing data fluctuations and ensuring reproducibility. This stability is achieved through advanced optical feedback technology and thermal management design, preventing performance degradation due to temperature changes.
In addition, photocatalytic bulbs emphasize safety and intelligence. Modern light sources use metal housings to shield electromagnetic interference and improve operational safety through cable designs without high‑voltage transmission. Intelligent control is another highlight: many bulbs support host‑computer software control, allowing users to remotely monitor and adjust parameters via a PC, such as setting timed shutdowns or switching between light‑control and electric‑control modes (constant irradiance or constant current output). This simplifies experimental workflows and reduces human error. For example, xenon light sources like the PLS‑SME series also feature an absolute irradiance mode that allows light intensity comparison between different sources, facilitating standardized experiments.
Our company's products provide comprehensive support in the field of photocatalytic bulbs, highlighting their applications and advantages. Take the PLS‑SME400E H1 xenon light source as an example: it adopts a new optical structure with greatly improved luminous efficiency, making it especially suitable for photothermal catalytic reactions, and integrates software control to achieve efficient, stable light output. For scenarios requiring multiple wavelengths, the PLS‑LED 100C high‑power LED source offers arrayed LED chips with high luminous efficiency, long lifetime, and various irradiation modes (continuous, pulsed, stepped), providing flexible use and space savings. These products are also compatible with a variety of accessories and fit a wide range of experimental setups, such as pairing with photothermal catalytic reaction devices to enhance overall performance.
In terms of experimental support, our services such as isotope‑labeling calibration testing can help users trace CO₂ reduction products to ensure data accuracy, while surface photovoltage testing delves into photocatalytic mechanisms. In short, photocatalytic bulbs provide a reliable foundation for scientific research through high performance, stability, and intelligent design. By choosing our company's products, you can carry out photocatalysis experiments more efficiently and drive green technology innovation.
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