A photocatalyst immobilization method on a flexible fiber substrate

A photocatalyst and flexible fiber technology, applied in the field of photocatalysis, can solve problems such as unfavorable photocatalytic reactions, reduce opportunities for reuse of loaded photocatalysts, and limited application range, so as to reduce mass transfer limitations, increase surface area and illumination area, Avoid the effect of high running costs
CN112108183BActive Publication Date: 2022-02-11XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2022-02-11

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Abstract

The invention discloses a photocatalyst immobilization method on a flexible fiber substrate, which belongs to photocatalysis technology. Add a solvent to the photocatalyst and silica binder to configure a catalyst suspension; coat the catalyst suspension on a flexible fiber substrate and dry to obtain a loaded photocatalyst precursor; the loaded photocatalyst precursor Soak in alkaline solution and dry to get the target product loaded photocatalyst, the loading capacity of photocatalyst is 0.2~1.6mg / cm 2 . Compared with other loading methods, this method does not require high-temperature treatment, uses silica binder and flexible fiber substrate, and can stably load the photocatalyst on the carrier only by drying, with good bonding effect, easy operation, and equipment Low requirements, low cost, large-scale preparation of supported photocatalysts; high photocatalytic activity, better reusability in alkaline reaction liquids; flexible carrier materials selected, easy for other treatments, stable performance, applicable to all areas wide.
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Description

technical field

[0001] The invention belongs to the technical field of photocatalysis, in particular to a photocatalyst immobilization method on a flexible fiber substrate. Background technique

[0002] The continuous development of economy and society has led to increasingly serious energy crisis and environmental pollution problems, and sustainable development is imminent. Photocatalytic technology can directly use sunlight to irradiate semiconductor catalysts to generate electron-hole pairs, and then drive redox reactions to realize photocatalytic water splitting to produce hydrogen and photocatalytic degradation of pollutants. It has important applications in the fields of energy and the environment.

[0003] According to the different states of photocatalyst, it can be divided into powder suspension system and load immobilization system. The activity of the powder suspension system is higher. However, in order to ensure the suspension state of the catalyst particles d...

Claims

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