Azadirachta indica plant-assisted green synthesis of Mn3O4 nanoparticles: Excellent thermal catalytic performance and chemical sensing behavior.
J Colloid Interface Sci
; 472: 220-8, 2016 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-27038784
ABSTRACT
The leaf extract of Azadirachta indica (Neem) plant was utilized as reducing agent for the green synthesis of Mn3O4 nanoparticles (NPs). The crystalline analysis demonstrated the typical tetragonal hausmannite crystal structure of Mn3O4, which confirmed the formation of Mn3O4 NPs without the existence of other oxides. Green synthesized Mn3O4 NPs were applied for the catalytic thermal decomposition of ammonium perchlorate (AP) and as working electrode for fabricating the chemical sensor. The excellent catalytic effect for the thermal decomposition of AP was observed by decreasing the decomposition temperature by 175 °C with single decomposing step. The fabricated chemical sensor based on green synthesized Mn3O4 NPs displayed high, reliable and reproducible sensitivity of â¼569.2 µA mM(-1) cm(-2) with reasonable limit of detection (LOD) of â¼22.1 µM and the response time of â¼10 s toward the detection of 2-butanone chemical. A relatively good linearity in the ranging from â¼20 to 160 µM was detected for Mn3O4 NPs electrode based 2-butanone chemical sensor.
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MEDLINE
Assunto principal:
Óxidos
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Extratos Vegetais
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Compostos de Manganês
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Substâncias Redutoras
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Azadirachta
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Nanopartículas
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Química Verde
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article