Preparation method of hollow double-shell znsn03 / sn02 heterojunction sensor material and application of the same in selective detection of triethylamine
Hollow double-shell ZnSnO3/SnO2 heterojunction sensor materials were prepared by co-precipitation and solvothermal reaction, which solved the problems of low specific surface area of ZnSnO3 and poor selectivity of SnO2, and achieved high sensitivity and high selectivity detection of triethylamine, which is suitable for food freshness monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JINZHONG UNIV
- Filing Date
- 2026-04-27
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, ZnSnO3 has a low specific surface area and insufficient active sites, which limits its gas-sensing performance. SnO2 has a high operating temperature and poor selectivity, making it impossible to achieve high sensitivity and high selectivity for the detection of triethylamine.
ZnSn(OH)6/SnO2・nH2O microsphere precursors were prepared by coprecipitation method. Hollow double-shell ZnSnO3/SnO2 heterojunction sensor materials were formed by solvothermal reaction and calcination, realizing the synergistic regulation of morphology and oxygen vacancies.
The prepared hollow double-shell ZnSnO3/SnO2 heterojunction sensor material exhibits high specific surface area and high oxygen vacancy concentration at low operating temperatures, and possesses rapid response, good selectivity and stability, making it suitable for highly sensitive detection of triethylamine and monitoring of food freshness.
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Figure CN122409778A_ABST