Why Choose a Quartz Photocatalytic Reactor？

   Quartz photocatalytic reactors have become the core equipment of choice for photocatalytic research, industrial production and environmental governance, relying on the unique material properties of high-purity quartz glass and the structural design optimized for photocatalytic reactions. Unlike reactors made of ordinary glass, plastic or metal, quartz photocatalytic reactors perfectly match the stringent requirements of photocatalytic processes for light transmission, chemical stability, thermal performance and reaction environment, and are the ideal carrier to realize efficient, stable and green photocatalytic reactions. The core reasons for choosing quartz photocatalytic reactors are as follows:

   1. Ultra-High Light Transmittance, Maximizing Photon Utilization Efficiency
The most critical requirement for photocatalytic reactions is the efficient penetration of light energy to excite catalysts and generate active free radicals. High-purity quartz glass (JGS1/JGS2 grade) used in quartz photocatalytic reactors has excellent optical performance:
It has a wide spectral transmission range, covering 180 nm~2500 nm (JGS1) and 220 nm~2500 nm (JGS2), with a visible light transmittance of more than 80% and an ultraviolet light transmittance of more than 75%. It can fully transmit ultraviolet, visible and near-infrared light sources commonly used in photocatalysis (such as UV lamps, xenon lamps, LED light sources).
The quartz cavity has a smooth inner wall and can be designed with a light reflection structure, which realizes multiple reflections of light in the reactor, effectively reducing photon loss and increasing the contact probability between light energy and the catalyst, and the photon utilization efficiency is increased by more than 30% compared with ordinary glass reactors.
No light absorption and scattering caused by impurities, ensuring the uniformity of the light field in the reactor and the consistency of the photocatalytic reaction at each position.

   2. Excellent Chemical Stability, Adapting to Complex Reaction Systems
Photocatalytic reactions often involve strong oxidizing substances (such as hydroxyl radicals ·OH, superoxide radicals O₂⁻) and complex reaction environments such as strong acid, strong alkali and organic solvents. Quartz glass has extremely stable chemical properties, which is far superior to ordinary materials:
It is insoluble in any acid (except hydrofluoric acid) and alkali at room temperature and high temperature, and does not react with strong oxidizing, reducing substances and various organic solvents in the photocatalytic system, avoiding the contamination of reaction products and the deactivation of catalysts caused by the dissolution of reactor materials.
It can resist the corrosion of active free radicals generated in the photocatalytic process, and the cavity is not easy to age and damage, ensuring the long-term stable operation of the reactor and reducing the replacement cost of equipment components.
The high-purity quartz material (metal impurity content ≤80 ppm for JGS2, ≤5 ppm for JGS1) has no impurity precipitation in the reaction process, which is especially suitable for high-precision photocatalytic synthesis and experimental research with strict requirements on product purity.

    3. Superior Thermal Performance, Adapting to Temperature Changes in Photocatalytic Reactions
Photocatalytic reactions (especially industrial-scale reactions) will generate a certain amount of reaction heat, and the temperature change will affect the reaction rate and catalyst activity. The excellent thermal properties of quartz glass make the quartz photocatalytic reactor adapt to the thermal characteristics of photocatalytic reactions:
It has an extremely low linear expansion coefficient (5.5×10⁻⁷/℃), which is only 1/15~1/20 of ordinary glass. It will not produce obvious thermal expansion and contraction during the heating and cooling process of the reaction, and there is no risk of cavity cracking and air leakage caused by thermal stress.
It has excellent thermal shock resistance, which can withstand drastic temperature changes from high temperature (above 1000℃) to room temperature even in cold water, and is suitable for photocatalytic reaction systems with intermittent operation and large temperature fluctuations.
The melting point of quartz glass is as high as 1730℃ and the long-term working temperature is up to 1200℃. It can withstand the local high temperature generated in the photocatalytic reaction, and the cavity will not soften, deform or melt, ensuring the structural stability of the reactor.