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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:42 |
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Conference: Bucharest University Faculty of Physics 2022 Meeting
Section: Physics and Technology of Renewable and Alternative Energy Sources
Title:
The Influence of Cu and TiO2 Nanoparticles on Plants
Photosynthesis Process
Authors:
Bogdan Ciprian MITREA(1), Cornelia NICHITA(2), Cornelia DIAC(1),Tom Matei IACOB(1), Bogdan DOBRICA(1), Ioan STAMATIN(1)
*
Affiliation:
1)3Nano-SAE Research Centre, PO Box MG-38, Bucharest, Magurele, Romania
2)University of Bucharest, Faculty of Physics, ICUB, PO Box MG-38, Bucharest, Romania
E-mail
bogdan.mitrea@3nanosae.org
Keywords:
CO2rr, Nanoparticles, Photosynthesis
Abstract:
The agriculture field, according to greenhouse gas emissions data from 2020, had a contribution of 11% of the total greenhouse gas emissions in the Earth's atmosphere [1]. Nanoparticles can be used as a solution for this problem since Cu and Cu-oxides, and TiO2 (anatase crystalline phase) has a dual role, acting both in improving the photosynthesis process and also as nanopesticides. As an example, the Cu-based nanostructures are known for their fungicide and insecticide effect [2], and TiO2 nanoparticlescan act as a nutrient for plant and improves the photosynthetic activity [3]. Unlike conventional pesticides, which are highly toxic both for humans, animals and the environment, nanopesticides have the advantage of presenting a large active surface area - which allows them, even used in small quantities, to interact with pathogens and also have a low production cost [3]. There are no scientific reports to date that have evaluated the potential effects of nanoparticles inserted directly into the plant roots and exploited in the growth cycle, and in this respect, we report the effect of TiO2 and Cu-oxides NPs on the photosynthesis in several types of plants, measuring CO2 consuming by mass spectrometry techniques and appropriate sensors. As an experimental setup we use a small chamber, like a greenhouse, artificially illuminated and irrigated. In addition, the plant health level is evaluated when the NPs are inside the roots. The NPs used in the current paper are made by electrochemical oxidation and green synthesis with plant extract and analyzed by the following methods: UV-Vis, FTIR, and Raman. The photocatalytic activity has been evaluated via cyclic voltammetry and chlorophyll fluorescence.
References:
[1] https://www.epa.gov/ghgemissions/sources-greenhouse-gas-emissions.
[2] P. Nicolaza, M.-E. I. Arturo, S.-R. D., C. Gloria, P.-D. Delgado and . R.-S. Greta, "Green-synthesized copper nanoparticles as a potential antifungal against plant pathogens," RSC Advances, vol. 9, p. 18835–18843, 2019.
[3] S. Shashank, S. Shreya, K. Amit, T. Anjali and . S. Bhasha, "The framework of nanopesticides: a paradigm in biodiversity," Materials Advances, vol. 2, p. 6569–6588, 2021.
Acknowledgement:
The current work was supported by a grant of the Ministry of Research, Innovation and Digitization, CNCS - UEFISCDI, project number PN-III-P1-1.1-PD-2021-0510 and TE 205/2021.
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