Multibranched flower-like ZnO particles from eco-friendly hydrothermal synthesis as green antimicrobials in agriculture

Chang, Tao-Ho; Lü, Ying-Chun; Yang, Minjung; Huang, Jer-Shing; Chang, Pi-Fang Linda; Hsueh, Han‐Yu

doi:10.1016/j.jclepro.2020.121342

Cited by 49 publications

(18 citation statements)

References 49 publications

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“…Since the TiO 2 NFs with both anatase and rutile phase show better photocatalytic properties than that of either phase alone [ 44 ], calcination was performed at 800 °C to maintain the phase crystallinity of the composite structure. The presence of ZnO in the ZnO-TiO 2 -CNFs composite was confirmed by several peaks at 31.8°, 34.5°, 36.4°, 47.6°, 56.6°, 62.8°, 66.3°, 68.1°, 69°, and 76.88°, which correspond to the crystal planes of (1 0 0), (0 0 2), (1 0 1), (1 0 2), (1 1 0), (1 0 3), (2 0 0), (1 1 2), (2 0 1), and (2 0 2) phases of ZnO [ 12 , 13 , 45 ]. The presence of TiO 2 , ZnO, and carbon peaks in the ZnO-TiO 2 -CNFs composite indicated that the ZnO NPs were successfully loaded into the TiO 2 -CNFs composite.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of ZnO-TiO2/Carbon Fiber Composite with Enhanced Photocatalytic Properties

Pant

Ojha

Kuk³

et al. 2020

Nanomaterials

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Herein, we prepared a novel photocatalytic ZnO-TiO2 loaded carbon nanofibers composites (ZnO-TiO2-CNFs) via electrospinning technique followed by a hydrothermal process. At first, the electrospun TiO2 NP-embedded carbon nanofibers (TiO2-CNFs) were achieved using electrospinning and a carbonization process. Next, the ZnO particles were grown into the TiO2-CNFs via hydrothermal treatment. The morphology, structure, and chemical compositions were studied using state-of-the-art techniques. The photocatalytic performance of the ZnO-TiO2-CNFs composite was studied using degrading methylene blue (MB) under UV-light irradiation for three successive cycles. It was noticed that the ZnO-TiO2-CNFs nanocomposite showed better MB removal properties than that of other formulations, which might be due to the synergistic effects of carbon nanofibers and utilized metal oxides (ZnO and TiO2). The adsorption characteristic of carbon fibers and matched band potentials of ZnO and TiO2 combinedly help to boost the overall photocatalytic performance of the ZnO-TiO2-CNFs composite. The obtained results from this study indicated that it can be an economical and environmentally friendly photocatalyst.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of ZnO-TiO2/Carbon Fiber Composite with Enhanced Photocatalytic Properties

Pant

Ojha

Kuk³

et al. 2020

Nanomaterials

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“…Recently, Chang et al [ 129 ] used a green hydrothermal route for the synthesis of versatile nanostructured zinc oxide particles (nZnOs) from zinc acetate precursors ( Figure 8 a). The morphological characterization showed that the NPs were shaped like nanorods ( Figure 8 b), nanoplatelets ( Figure 8 c), and multibranched flower-like particles ( Figure 8 d) for growth times of 6, 12, and 24 h, respectively.…”

Section: Green Synthesis Methods Of Tio 2 and Zno mentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Green Synthesis and Applications of ZnO and TiO2 Nanostructures

et al. 2021

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Over the last two decades, oxide nanostructures have been continuously evaluated and used in many technological applications. The advancement of the controlled synthesis approach to design desired morphology is a fundamental key to the discipline of material science and nanotechnology. These nanostructures can be prepared via different physical and chemical methods; however, a green and ecofriendly synthesis approach is a promising way to produce these nanostructures with desired properties with less risk of hazardous chemicals. In this regard, ZnO and TiO2 nanostructures are prominent candidates for various applications. Moreover, they are more efficient, non-toxic, and cost-effective. This review mainly focuses on the recent state-of-the-art advancements in the green synthesis approach for ZnO and TiO2 nanostructures and their applications. The first section summarizes the green synthesis approach to synthesize ZnO and TiO2 nanostructures via different routes such as solvothermal, hydrothermal, co-precipitation, and sol-gel using biological systems that are based on the principles of green chemistry. The second section demonstrates the application of ZnO and TiO2 nanostructures. The review also discusses the problems and future perspectives of green synthesis methods and the related issues posed and overlooked by the scientific community on the green approach to nanostructure oxides.

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“…It was found that the antibacterial activity of ZnO increased with decreasing crystallite size [ 30 ]. Moreover, results indicated that multi-branched flower-like ZnO showed more remarkable, reliable, and stable antifungal activity compared with other ZnO nanoparticles [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial and Photocatalytic Properties of ZnO Nanoparticles Obtained from Chemical versus Saponaria officinalis Extract-Mediated Synthesis

et al. 2021

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In the present work, the properties of ZnO nanoparticles obtained using an eco-friendly synthesis (biomediated methods in microwave irradiation) were studied. Saponaria officinalis extracts were used as both reducing and capping agents in the green nanochemistry synthesis of ZnO. Inorganic zinc oxide nanopowders were successfully prepared by a modified hydrothermal method and plant extract-mediated method. The influence of microwave irradiation was studied in both cases. The size, composition, crystallinity and morphology of inorganic nanoparticles (NPs) were investigated using dynamic light scattering (DLS), powder X-ray diffraction (XRD), SEM-EDX microscopy. Tunings of the nanochemistry reaction conditions (Zn precursor, structuring agent), ZnO NPs with various shapes were obtained, from quasi-spherical to flower-like. The optical properties and photocatalytic activity (degradation of methylene blue as model compound) were also investigated. ZnO nanopowders’ antibacterial activity was tested against Gram-positive and Gram-negative bacterial strains to evidence the influence of the vegetal extract-mediated synthesis on the biological activity.

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Multibranched flower-like ZnO particles from eco-friendly hydrothermal synthesis as green antimicrobials in agriculture

Cited by 49 publications

References 49 publications

Synthesis and Characterization of ZnO-TiO2/Carbon Fiber Composite with Enhanced Photocatalytic Properties

Synthesis and Characterization of ZnO-TiO2/Carbon Fiber Composite with Enhanced Photocatalytic Properties

Green Synthesis and Applications of ZnO and TiO2 Nanostructures

Antibacterial and Photocatalytic Properties of ZnO Nanoparticles Obtained from Chemical versus Saponaria officinalis Extract-Mediated Synthesis

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