Semi-conductor photoelectrocatalysis combination electrode for simultaneously degrading ethylene and sterilizing and preparation and applications

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Example 1 Silver-loaded nano-TiO 2 / ACF(nano TiO 2 -Ag / ACF) system and nano-TiO 2 / ACF(nano TiO 2 / ACF) system preparation

[0038] The specific expression is as follows:

[0039] (1) Nano-TiO 2 - Preparation of Ag / ACF system

[0040] 1.1 The nanoscale TiO loaded with silver 2 Immobilized on activated carbon fibers to prepare two pieces of nano-TiO 2 -Ag / ACF composite material.

[0041] The preparation process is attached figure 1 shown.

[0042] Nanoscale Titanium Dioxide TiO Prepared by Gas Phase Method 2 , its specific surface area: 50±15m 2 / g; primary particle size: 23nm, such as the P25 product of Degussa Company in Germany. Activated carbon fiber, the specific surface area is 1150~1250m 2 / g; the diameter of the single filament is 15-20um, such as the model-STF1300 product of Nantong Sutong Carbon Fiber

[0058] Example 2 Semiconductor photoelectric simultaneous degradation of ethylene penicillium reaction unit and operation experiment

[0059] Nano TiO 2 -Ag / ACF system cathode and anode photoelectrodes, nano-TiO 2 The cathode and anode photoelectrodes of the / ACF system are connected in parallel to form the cathode and anode ports of the compound electrode, and the distance between the two systems is 7-8mm. as attached figure 2 As shown, the light source is three 2W cold cathode lamps that can emit a wavelength of 254nm, and the light wave is irradiated on the nano-TiO 2 -Ag / ACF system cathode and anode photoelectrodes and nano-TiO 2 On the cathode and anode photoelectrodes of the / ACF system, the distance between the lamp tube and the system is 2.5-3mm. DC stabilized power supply, output 0~150v; DC voltage and 0~2A DC current, such as WYK-K1002 of China Huatai Company. DC fan, size 50mm×50mm×10mm, wind pressure 250~270Pa, air volume: 0.28mm 3 / min.

[0060] Con