التفاصيل البيبلوغرافية
| العنوان: |
Zinc oxide nanoparticles: Biosynthesis, characterization, biological activity and photocatalytic degradation for tartrazine yellow dye. |
| المؤلفون: |
Wouters, Robson Dias1 (AUTHOR), Muraro, Pâmela Cristine Ladwig1 (AUTHOR), Druzian, Daniel Moro1 (AUTHOR), Viana, Altevir Rossato1 (AUTHOR), de Oliveira Pinto, Eduarda1 (AUTHOR), da Silva, Jamile Kisner Lacerda1 (AUTHOR), Vizzotto, Bruno Stefanello1 (AUTHOR), Ruiz, Yolice Patricia Moreno2 (AUTHOR), Galembeck, André2 (AUTHOR), Pavoski, Giovani3 (AUTHOR), Espinosa, Denise Crocce Romano3 (AUTHOR), da Silva, William Leonardo1 (AUTHOR) w.silva@ufn.edu.br |
| المصدر: |
Journal of Molecular Liquids. Feb2023, Vol. 371, pN.PAG-N.PAG. 1p. |
| مصطلحات موضوعية: |
*PHOTODEGRADATION, *POINTS of zero charge, *PHOTOCATALYSTS, *ZINC oxide, *FOURIER transform infrared spectroscopy, *TARTRAZINE |
| مستخلص: |
• E. grandis extract was used for ZnO-NPs. • CCDR 23 showed the optimal condition for TY photodegradation with 76.1%. • ZnO-NPs reuse showed photocatalytic stability (k = 0.0077–0.0067 min−1). • MIC of 0.625 mg mL−1 against S. Aureus , E. Coli , K. Pneumoniae , and P. Auruginosa. • ZnO-NPs showed biocompatibility against 293T, tumor activity A549, and U87MG. The present study aims to synthesize/characterize zinc oxide nanoparticles (ZnO-NPs) to evaluate the application of tartrazine yellow (TY) dye removal. ZnO-NPs were synthesized by the biosynthesis method from Eucalyptus grandis extract. X-ray diffraction (XRD), zeta potential (ZP), N 2 porosimetry, Field Emission Gun Scanning Electron Microscope (FEG-SEM), zero charge point (pH ZCP) and Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) were used to the ZnO-NPs characterization. The antimicrobial activity was performed by the MIC (Minimum Inhibitory Concentration) method against gram-positive (S. aureus) and gram-negative (E. coli, K. pneumoniae and P. aeruginosa) strains. For cellular activity assays, MTT (3-(4,5-Dimethylthiazol-2-yl) and DCFH-DA (2′7′ dichlorofluorescein diacetate) tests were performed with cell lines of the 293T, A549 and U87MG. FEG-SEM micrography indicated a heterogeneous and porous morphology with rod-shaped zinc oxide nanoparticles (particle size ranged from 40 to 50 nm). ZnO-NPs showed a negative charge surface (−11.6 ± 0.2 mV), pH ZCP ≈ 7.16 with type III and H1 hysteresis (S BET = 3.9 m2/g, and Dp = 16.2 nm) indicating a mesoporous material with pores open at both ends. The optimal condition was [ZnO-NPs] = 0.6 g/L, [TY] = 20 mg/L and pH ≈ 6.0 with 76.1 % (k = 0.0077 min−1) for the TY photodegradation under visible radiation, and after VI cycles of ZnO-NPs recycling, there was a decrease of only 6 %. ZnO-NPs showed antimicrobial activity of 0.625 mg mL−1, as well as a decrease in cell viability in the three tested lines in 100 and 300 µg mL−1. Therefore, ZnO-NPs showed potential application for TY photodegradation to be used in wastewater treatment and nanomedicine. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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