The CEL-GPPCN Pro is an advanced system for gas phase photocatalysis, designed to allow for the distribution and mixing of multiple gases with high precision. This system uses Mass Flow Meters (MFMs) to achieve arbitrary gas ratios on demand. It is ideal for research in pollutant degradation, gas-solid catalysis, and reactions with thermophotocatalytic catalysts.

Key Technical Features:

• Precise Flow Control: Equipped with Mass Flow Meters (MFMs) that ensure precise flow control and allow for the setting of arbitrary gas ratios on demand.

• Multi-Flow Distribution System: Four-way pneumatic circuit (three for flow control, one for purging), complete with an inlet filter and check valve.

• Temperature-Controlled Mixing Chamber: Features a 100 mL mixing chamber and pipelines with temperature control (from room temperature up to 200 degrees Celsius), ensuring the stability of the gas mixture.

• Pressure-Resistant Design: The entire system has a pressure-resistant design of 2.0 MPa, with pipelines and valves made of 316L Stainless Steel (imported Anlok needle valves and fittings).

• Reaction Flexibility: The system allows connection to various reactors (Tripod, temperature-controlled integrated, High Pressure, National Standard), adapting to gas-solid, gas-liquid, and high-pressure multiphase experiments.

• Key Applications: Essential for: Photocatalytic Nitrogen and Carbon Fixation, Photocatalytic $\text{CO}_2$ Reduction, Catalytic Degradation of VOCs, and Simple Thermophotocatalysis.

• Compatibility: The system is compatible with the coupling of Xenon, Mercury, and LED light sources.