Synthesis and characterization of ZnO nanoparticles for photocatalysis, antibacterial and cytotoxicity in kidney cancer (A498) cell lines

Manohar, Ala; Park, Jun‐Woo; Geleta, Dereje Degefa; Krishnamoorthi, C.; Thangam, Ramar; Kang, Heemin; Lee, Joonho

doi:10.1016/j.jallcom.2021.159868

Cited by 55 publications

(18 citation statements)

References 49 publications

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“…In the ZnS pattern, the peaks at 2θ = 28.68°, 47.68°, and 56.68° — corresponding to the (111), (220), and (311) planes, respectively — can be indexed to a cubic phase of the material. The 3HMDA material shows 2θ diffraction peaks at 31.74°, 34.4°, 36.31°, 47.51°, 56.56°, 62.78°, and 67.95° corresponding to the (100), (002), (101), (102), (110), (103), and (112) planes, respectively; these coincide with the hexagonal wurtzite structure of ZnO 12 . The defined peaks suggest high crystallinity of the oxide.…”

Section: Resultsmentioning

confidence: 97%

“…The formation of the hybrid composite can be explained as follows: firstly, the organic compound HMDA (being a primary diamine) behaves as an Arrhenius base and promotes a basic medium by increasing the concentration of hydroxyl ions. These anions react with Zn 2+ cations, 13 forming ZnO at 70 °C 12,14 . Secondly, as the mixture reaches its boiling point (~110 °C), the sulfidation process of the Zn 2+ cations present on the ZnO surface begins, progressively, to form ZnS on the surface faces of the oxide.…”

Section: Resultsmentioning

confidence: 99%

“…The 3HMDA material shows 2⊔ diffraction peaks at 31.74°, 34.4°, 36.31°, 47.51°, 56.56°, 62.78°, and 67.95°corresponding to the (100), (002), (101), ( 102), ( 110), (103), and (112) planes, respectively; these coincide with the hexagonal wurtzite structure of ZnO. 12 The defined peaks suggest high crystallinity of the oxide. The 6HDMA material shows 3 diffraction peaks with values of 2⊔ at 28.68°, 47.68°, and 56.68°with reflections in the (111), (220), and (311) planes, respectively; these peaks are characteristic of the zinc blende.…”

Section: X-ray Diffractionmentioning

confidence: 90%

“…These anions react with Zn 2+ cations, 13 forming ZnO at 70 °C. 12,14 Secondly, as the mixture reaches its boiling point (∼110 °C), the sulfidation process of the Zn 2+ cations present on the ZnO surface begins, progressively, to form ZnS on the surface faces of the oxide. Finally, the formation of the hybrid can be attributed to the interaction between the electron pairs of the nitrogen atoms of the HDMA and the available Zn 2+ cations, resulting in the formation of a two-dimensional crystal.…”

Section: X-ray Diffractionmentioning

confidence: 99%

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One‐step synthesis of ZnS/ZnO using HMDA as precursor and active part for high photocatalytic hydrogen production

García‐Mendoza

Rivera

Álvarez-Lemus

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND: The use of organic molecules to improve the performance of semiconductors (such as using ZnS in hydrogen production) has been widely studied. This work studies the formation of a photocatalyst formed by ZnS/ZnO anchored to an organic molecule (hexamethylenediamine) under different amounts of the organic material and its performance in hydrogen production is evaluated. RESULTS:The materials were synthesized by the precipitation method, forming ZnS/ZnO composite, 3HMDA and 9HMDA materials showed flower-like structure. The 6HMDA material showed a nanotube like structure and high surface area . Likewise, the anchoring of the organic material forming stacked lamellae is confirmed. Regarding hydrogen production, the most active material was 6HMDA, which showed an excellent performance, producing 3281 ∼moles after 5 h of reaction with a production rate of 12 916 ∼moles h −1 g -1 ; 6HMDA increased the effectiveness with respect to ZnS by a factor of 4.3, while the 9HMDA material increased it 1.5 times. CONCLUSION:The organic material and the ZnS/ZnO work together to improve the photocatalytic activity and stability of the material, increasing hydrogen production under UV light. These results show that it is possible to obtain an efficient material with excellent photocatalytic performance by a relatively simple synthesis method.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: X-ray Diffractionmentioning

confidence: 90%

Section: X-ray Diffractionmentioning

confidence: 99%

See 2 more Smart Citations

One‐step synthesis of ZnS/ZnO using HMDA as precursor and active part for high photocatalytic hydrogen production

García‐Mendoza

Rivera

Álvarez-Lemus

et al. 2022

J of Chemical Tech & Biotech

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“…For instance, catalytic properties can be observed in zinc oxide (ZnO) nanoparticles but not in larger particles. 35,36 ZnO nanoparticles also have interesting properties as catalysts. 37 Nanocatalysts offer new avenues for catalytic processes, which are ubiquitous in industrial applications, 38 including in agriculture for waste water remediation 39 or agri-food production.…”

mentioning

confidence: 99%

Engineered zinc oxide-based nanotherapeutics boost systemic antibacterial efficacy against phloem-restricted diseases

Soliman

Lee

Özcan

et al. 2022

Environ. Sci.: Nano

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Multifunctional Magnetic Nanoparticles for Dynamic Imaging and Therapy

Hong

Choi

et al. 2022

Advanced NanoBiomed Research

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Dynamic therapy is a key research area for noninvasive clinical therapeutics. Up to now, light, electricity, ultrasound, and magnetic field have been investigated for the potential remote cellular regulation tools. Opening ion channels, activating cell death, and manipulating individual receptors that can control various cellular signal pathways have been suggested using external energy forms that can be dynamically applied in situ, which advance from the static control strategies. [1][2][3][4] For instance, optogenetics using light [5,6] have greatly advanced cellular modulation over the past decades, especially for neuromodulation. [7] Other energy sources have also been demonstrated with promising potential for regulating cellular metabolism and death. However, controlling the penetration and localization of energy sources (e.g., light and electricity) in tissues and cells have been challenging for in vivo applications. On the other hand, a magnetic field can safely penetrate deep tissues, which is particularly relevant for clinical applications. Consequently, utilizing the magnetic field to manipulate the MNPs is emerging as an effective approach to dynamically regulate cellular activity. [8] Recent advancements of multifunctional MNPs, spintronics, and magnetogenetics have enabled precise modulation of magnetic field gradients and pulses to remotely control the movement, heat generation, and reactive oxygen species (ROS) generation of the MNPs (Figure 1).Engineering multifunctional magnetic particles is the key requirement to achieve desired biomedical applications. [9][10][11] In the past 20 years, MNPs have received increasing attention

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Synthesis and characterization of ZnO nanoparticles for photocatalysis, antibacterial and cytotoxicity in kidney cancer (A498) cell lines

Cited by 55 publications

References 49 publications

One‐step synthesis of ZnS/ZnO using HMDA as precursor and active part for high photocatalytic hydrogen production

One‐step synthesis of ZnS/ZnO using HMDA as precursor and active part for high photocatalytic hydrogen production

Engineered zinc oxide-based nanotherapeutics boost systemic antibacterial efficacy against phloem-restricted diseases

Multifunctional Magnetic Nanoparticles for Dynamic Imaging and Therapy

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