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Sensing devices of volatile organic compounds based on ZnO hollow/p-type semiconductors heterostructures

Grant number: 18/00033-0
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2018
Effective date (End): April 30, 2022
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal Investigator:Diogo Paschoalini Volanti
Grantee:Tarcísio Micheli Perfecto
Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil


The detection of Volatile Organic Compounds (VOCs) has been of great interest because they can be toxic, explosive, flammable or exhaled in human breath, functioning as biomarkers. Among the different ways of detecting VOCs, the use of metal oxide semiconductors is the most promising. These materials have a simple operation mechanism based on conductance change, easy production and low cost. However, these materials have some limitations, such as high operating temperature, low analyte selectivity, low sensitivity and humidity interference. In view of these limitations, this research proposal aims to study the effect of hollow structures of ZnO modified with p-type semiconductors in the detection of VOCs (eg: alcohols, ketones, aldehydes, amines, aromatic compounds) at room temperature in the presence of humidity, similar to environmental conditions and human breath. It is expected to obtain materials with excellent VOCs detecting performance at room temperature, due to the effect of hollow structures, which promotes an increase in diffusion and surface area, and in the presence of humidity, due to the effect promoted by p-n heterojunction, where p-type semiconductor material makes the material less susceptible to the negative effect of humidity. In addition, one of the major challenges of the research will be to develop new miniaturized (low cost of production) sensor devices with the aid of a 3D-printer to detect VOCs in environmental and human breathing conditions, making possible the real application. This proposal will be supported by regular research support financed by FAPESP (Process 17/01267-1). (AU)

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Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ZITO, CECILIA A.; PERFECTO, TARCISIO M.; MAZON, TALITA; DIPPEL, ANN-CHRISTIN; KOZIEJ, DOROTA; VOLANTI, DIOGO P.. Reoxidation of graphene oxide: Impact on the structure, chemical composition, morphology and dye adsorption properties. Applied Surface Science, v. 567, . (13/07296-2, 18/08271-7, 20/06421-1, 16/25267-8, 18/00033-0, 17/01267-1)
VIOTO, GABRIEL C. N.; PERFECTO, TARCISIO M.; ZITO, CECILIA A.; VOLANTI, DIOGO P.. Enhancement of 2-butanone sensing properties of SiO2@CoO core-shell structures. CERAMICS INTERNATIONAL, v. 46, n. 14, p. 22692-22698, . (17/01267-1, 18/01258-5, 18/00033-0, 16/25267-8, 17/13230-5, 18/08271-7)
VIOTO, GABRIEL C. N.; PERFECTO, TARCISIO M.; ZITO, CECILIA A.; VOLANTI, DIOGO P.. Flower-like NiO for the detection of 3-methyl-1-butanol, a microbial volatile organic compound. Materials Letters, v. 333, p. 4-pg., . (20/06421-1, 18/00033-0, 18/01258-5)
PERFECTO, TARCISIO M.; ZITO, CECILIA A.; VOLANTI, DIOGO P.. Effect of NiS nanosheets on the butanone sensing performance of ZnO hollow spheres under humidity conditions. SENSORS AND ACTUATORS B-CHEMICAL, v. 334, . (20/06421-1, 16/25267-8, 18/01258-5, 18/00033-0, 17/01267-1)
MODENES-JUNIOR, MARCO A.; ZITO, CECILIA A.; PERFECTO, TARCISIO M.; VOLANTI, DIOGO P.. Ethanol detection using composite based on reduced graphene oxide and CuO hierarchical structure under wet atmosphere. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, v. 248, . (17/01267-1, 16/25267-8, 13/23886-4, 14/17343-0, 18/00033-0)
GALVANI, GIOVANA M.; ZITO, CECILIA A.; PERFECTO, TARCISIO M.; MALAFATTI, JOAO OTAVIO D.; PARIS, ELAINE C.; VOLANTI, DIOGO P.. Two-dimensional NiO nanosheets for efficient Congo red adsorption removal. Materials Chemistry and Physics, v. 290, p. 11-pg., . (18/01258-5, 20/06421-1, 18/00033-0, 17/01267-1, 16/25267-8)
OLIVEIRA, TAIS N. T.; PERFECTO, TARCISIO M.; ZITO, CECILIA A.; VOLANTI, DIOGO P.. Improved triethylamine sensing properties by designing an In2O3/ ZnO heterojunction. SENSORS AND ACTUATORS REPORTS, v. 3, . (16/25267-8, 18/00033-0, 18/01258-5, 19/12345-9, 20/06421-1, 17/01267-1)
ZITO, CECILIA A.; PERFECTO, TARCISIO M.; DIPPEL, ANN-CHRISTIN; VOLANTI, DIOGO P.; KOZIEJ, DOROTA. Low-Temperature Carbon Dioxide Gas Sensor Based on Yolk-Shell Ceria Nanospheres. ACS APPLIED MATERIALS & INTERFACES, v. 12, n. 15, p. 17757-17763, . (17/01267-1, 18/00033-0, 18/01258-5, 18/08271-7, 16/25267-8)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
PERFECTO, Tarcísio Micheli. Volatile organic compound sensing devices based on hollow ZnO heterostructures/p-type semiconductors. 2022. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Instituto de Biociências Letras e Ciências Exatas. São José do Rio Preto São José do Rio Preto.

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Filed patent(s) as a result of this research project

CÂMARA PARA MEDIÇÃO DE SENSOR DE GÁS FABRICADA POR IMPRESSÃO 3D BR102019023340-0 - Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp) . TARCÍSIO MICHELI PERFECTO / Diogo Paschoalini Volanti - November 2019, 06