| Full text | |
| Author(s): |
de Sa, Bruna S.
;
Perfecto, Tarcisio M.
;
de Oliveira, Davi S.
;
Volanti, Diogo P.
Total Authors: 4
|
| Document type: | Journal article |
| Source: | MATERIALS TODAY COMMUNICATIONS; v. 37, p. 6-pg., 2023-09-27. |
| Abstract | |
The development of microbial volatile organic compounds (MVOCs) sensors is helpful due to the detection of toxic contaminants in foods, non-invasive disease diagnosis, and monitoring of contamination in industrial processes. Materials that are typically applied in the sensors field are semiconductor metal oxides (SMOx) since they have shown efficiency in identifying gases. Using metal-organic frameworks (MOFs) as precursors is an exciting approach to producing well-structured SMOx. Therefore, we report the preparation and characterization of In-MIL-68 (a MOF composed of terephthalic acid) derived hollow In2O3 microrods. The sensor material was obtained by the microwave-assisted solvothermal (MAS) method and subsequent calcination. We also show the application of the hollow In2O3 microrods as a 1-pentanol sensor for the first time. The sensor demonstrated exceptional sensitivity to this MVOC compared to other sensors reported in the literature, achieving a great response of 390 for 100 ppm of this compound at 350 degrees C. (AU) | |
| FAPESP's process: | 18/00033-0 - Sensing devices of volatile organic compounds based on ZnO hollow/p-type semiconductors heterostructures |
| Grantee: | Tarcísio Micheli Perfecto |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 20/06421-1 - Development of sensors derived from metal-organic frameworks to detect microbial volatile organic compounds |
| Grantee: | Diogo Paschoalini Volanti |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 18/01258-5 - Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products |
| Grantee: | José Maria Correa Bueno |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 20/05233-7 - Advanced composites based on semiconductor metal oxide and carbon structures for volatile organic compounds sensing |
| Grantee: | Bruna Soares de Sa |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |