Phytosynthesis of silver nanoparticles@graphene oxide using Mangifera indica leaves extract at room temperature: The simultaneous effects of synthesis conditions on controlled particle size and colorimetric sensing of H2O2

In this study, the silver nanoparticles@graphene oxide (AgNPs@GO) nanocomposite was successfully fabricated using Mangifera indica leaves extract as a reducing agent and stabilizer. The simultaneous effects of different synthesis parameters, including the extract concentration, the concentration of...

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Bibliographic Details
Published in:Diamond and related materials 2023-10, Vol.138, p.110264, Article 110264
Main Authors: Hai, Nguyen Duy, Dat, Nguyen Minh, Nam, Nguyen Thanh Hoai, An, Hoang, Tai, Le Tan, Cong, Che Quang, Huong, Quach Thi Thanh, Hieu, Nguyen Huu
Format: Article
Language:English
Subjects:
Colorimetric detection
Graphene oxide
Mangifera indica
Particle size
Response surface
Silver nanoparticles
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Summary:In this study, the silver nanoparticles@graphene oxide (AgNPs@GO) nanocomposite was successfully fabricated using Mangifera indica leaves extract as a reducing agent and stabilizer. The simultaneous effects of different synthesis parameters, including the extract concentration, the concentration of AgNO3, and the mass ratio between GO and AgNO3 (GO/AgNO3 ratio) were investigated via response surface methodology according to the Box-Behnken model, in which the particle size was calculated via scanning electron microscope (SEM) images. The results indicated the high compatibility of the model with the experimental data with the correlation coefficient R2 of 0.9948. Additionally, the optimal conditions for the fabrication of the AgNPs@GO were determined to be 1.476 mg/mL of extract, 0.111 mg/mL of AgNO3, and the GO/AgNO3 ratio of 0.307 with an estimated particle size of 22.002 nm. Besides, the calculated particle size from SEM images was also compared with the values determined using Mie theory, which indicated relative compatibility between the two calculation approaches. The H2O2 colorimetric detection of the material was also evaluated. The result also showed that while the detection of H2O2 showed a significant variation within different synthesis conditions, the limit of detection value calculated from all samples showed the lowest value of the limit of detection
ISSN:0925-9635
1879-0062
DOI:10.1016/j.diamond.2023.110264