A ZnIn2S4 / amorphous MoO 3-x Preparation and application of nanodot Z system photocatalyst

By preparing ZnIn2S4/amorphous MoO3-x nanodot photocatalysts and combining localized surface plasmon resonance and heterojunction structure, the problems of photoresponse range and electron-hole pair recombination of ZnIn2S4 photocatalysts were solved, and efficient photocatalytic hydrogen production performance and stability were achieved.

CN119259083BActive Publication Date: 2026-06-09CHINA UNIV OF MINING & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF MINING & TECH
Filing Date
2024-10-12
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing ZnIn2S4 photocatalysts have limitations in terms of photoresponse range and electron-hole pair recombination, resulting in low photocatalytic hydrogen production efficiency and difficulty in effectively utilizing solar energy.

Method used

Amorphous MoO3-x nanodots were synthesized by sonochemical method and loaded onto ZnIn2S4 using a one-pot hydrothermal method to form a ZnIn2S4/amorphous MoO3-x nanodot Z-system photocatalyst. Combining localized surface plasmon resonance effect and heterojunction structure, the light absorption range and electron-hole separation efficiency were improved.

Benefits of technology

It significantly improves the performance and stability of photocatalytic hydrogen production, expands the light absorption range, and enhances electron-hole separation efficiency, achieving a highly efficient photocatalytic hydrogen production effect.

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Abstract

The application discloses a kind of ZnIn2S4 / amorphous MoO 3‑x Preparation and application of nanodot Z system photocatalyst, it relates to the field of photocatalysis.It is simple to operate, environment-friendly, and the prepared ZnIn2S4 / amorphous MoO 3‑x Nanodot catalyst has excellent hydrogen production performance and stability.First, amorphous MoO 3‑x Nanodot is synthesized by ultrasonic chemical method, then MoO 3‑x Nanodot is loaded on ZIS by one-pot hydrothermal method, and ZM catalyst is obtained.First, a certain amount of ZM catalyst is weighed and placed in a quartz photo-reactor, then triethanolamine aqueous solution without dissolved oxygen is added, argon is introduced to exhaust air, and the reactor is sealed.The reactor is placed in a magnetic stirrer and the temperature of the reactor is maintained by a constant-temperature tank.The application improves the electron-hole separation efficiency of the composite catalyst, reduces the recombination efficiency, and expands the light absorption range.
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