Reactor capable of controllably loading multiple catalytic materials, coating device and preparation method

Abstract

The invention discloses a reactor capable of controllably loading various catalytic materials, a coating device and a preparation method. A rotor of the coating device is provided with a plurality of capillary tube positioning structures for fixing capillary tubes, and when the capillary tubes are fixed on the capillary tube positioning structures and centrifuged by a centrifugal machine, the axis of the capillary tube is in a plane perpendicular to the axis of the rotating shaft, and the axis of the capillary tube does not coincide with any diameter of the rotating shaft. A catalytic reactor is prepared by adopting the coating equipment, a reactor capable of controllably loading multiple catalytic materials is obtained, and during centrifugation, the total length of the same capillary tube is controlled to be located on the same side of the middle axial surface of a rotating shaft perpendicular to the axis of the capillary tube. According to the invention, PDMS liquid is coated on the set area of the capillary tube, so that catalytic materials can be fixed in the set area of the capillary tube, and various catalytic materials can be loaded on the same capillary tube by changing the mounting angle of the capillary tube during each centrifugal operation.

Description

technical field [0001] The invention relates to a catalytic reactor, a coating device for the catalytic reactor and a preparation method for the catalytic reactor. Background technique [0002] Photocatalytic technology is a new type of advanced oxidation technology, which is clean and sustainable, and plays a vital role in the fields of environment, energy, and chemical industry. However, the low photocatalytic efficiency limits the application of photocatalytic technology. The photocatalytic material remains unchanged, and the reactor determines the distribution of the catalyst, the distribution of light, the photon transmission efficiency, and the transmission speed of the reactant, which play an important role in the photocatalytic efficiency. Therefore, the design of new reactors is the focus of research. [0003] Microfluidic chip is a science and technology characterized by manipulating fluid in micron-scale space. It miniaturizes and integrates the basic functions ...

AI Technical Summary

Problems solved by technology

[0006] Optofluidic reactors have certain advantages in promoting catalytic reaction efficiency and exploring reaction mechanisms. Compared with traditional photoreactors, there are many improvements, but there are still the following problems: ① The materials that have achieved strong loading are limited, and new loading methods need to be developed For secure loading of various materials

The traditional coating method is suitable for most materials, but the binding force is weak, the durability and repeatability are poor, and the catalyst cannot be firmly loaded in the optofluidic reactor

The sol-gel method or chemical method can directly fix the material on the wall of the reactor, which solves the problem of weak binding force, poor durability and repeatability, but the applicable materials are very limited

②The photocatalytic reaction in the reactor is mainly based on a single material, and the reaction kinetics and reaction mechanism of the co-catalysis of multiple materials are still unclear

However, limited by the loading method, the load of multiple materials in the same optofluidic reactor is less

③The throughput of conventional optofluidic reactors is small, it is difficult to meet the needs of actual high-throughput production, and the reaction flux needs to be expanded

④ Common optofluidic reactors mostly use polydimethylsiloxane (PDMS) as the material to prepare pipes. Due to the gas permeability of PDMS, as the reaction progresses, the water in the chip evaporates continuously, which changes the optimal reaction concentration. rate reduction

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