NiO nanoparticles synthesized by using Tagetes erecta L leaf extract and their activities for photocatalysis, electrochemical sensing, and antibacterial features

Likasari, Icuk Dian; Astuti, Rina Widi; Yahya, Amri; Isnaini, Nur; Purwiandono, Gani; Hidayat, Habibi; Wicaksono, Wiyogo Prio; Fatimah, Is

doi:10.1016/j.cplett.2021.138914

Cited by 31 publications

(13 citation statements)

References 51 publications

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“…Our results are in partial agreement with previous studies conducted on different types of nanoparticles using T. erecta extracts (e.g., nickel oxide nanoparticles or silver nanoparticles obtained using leaf extracts, and zinc oxide nanoparticles using aqueous extract of flowers) that showed a certain degree of inhibitory activity on Gram-positive and Gram-negative bacteria [25,51,58]. Regarding silver nanoparticles obtained from marigold flowers, one previous article investigated the synergistic potential of such nanoparticles when used with different commercial antibiotics, showing promising synergistic effects especially regarding antifungal activity [23].…”

Section: Discussionsupporting

confidence: 92%

“…The few previous studies conducted on various types of nanoparticles obtained using T. erecta extracts focus mostly on the characterization of the synthesized nanoparticles [22,24], with only some approaching the biological perspective of their potential use, especially as antimicrobials [23,25,26,51,52]. However, such studies were mostly conducted on extracts obtained from leaves and involved other types of nanoparticles as well.…”

Section: Discussionmentioning

confidence: 99%

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Eco-Friendly Synthesis and Comparative In Vitro Biological Evaluation of Silver Nanoparticles Using Tagetes erecta Flower Extracts

et al. 2022

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The present study reports an eco-friendly synthesis method of silver nanoparticles (AgNPs) using two different extracts (aqueous and ethanolic) of Tagetes erecta flowers. When exposed to different biocompounds found in the plant, silver ions are reduced, thus, resulting in the green synthesis of nanoparticles. After performing the optimization of synthesis, the obtained AgNPs were characterized using various techniques. The UV–Vis spectrum of the synthesized nanoparticles showed maximum peaks at 410 and 420 nm. TEM analysis revealed that the particles were spherical with a size ranging from 10 to 15 nm, and EDX analysis confirmed the presence of silver metal. The average diameter value obtained through DLS analysis for the two types of AgNPs (obtained using aqueous and ethanolic extracts) was 104 and 123 nm. The Zeta potentials of the samples were −27.74 mV and −26.46 mV, respectively, which indicates the stability of the colloidal solution. The antioxidant and antimicrobial activities assays showed that nanoparticles obtained using the aqueous extract presented enhanced antioxidant activity compared to the corresponding extract, with both types of AgNPs exhibiting improved antifungal properties compared to the initial extracts.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Eco-Friendly Synthesis and Comparative In Vitro Biological Evaluation of Silver Nanoparticles Using Tagetes erecta Flower Extracts

et al. 2022

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“…In accordance with the EDX survey, the XPS survey spectra validated the presence of Ni, Zr, O and C. Figure 4(a) shows Ni 2p spectra with doublet peaks corresponding to Ni 2p 3/2 (split peak) and Ni 2p 1/2 (split peak) with binding energies of 853.50 eV and 871.40 eV, respectively. Two more satellite peaks were identified at 861.19 (2p 3/2) and 880.32 (2p 1/2), which were due to oxidation products on the material surface, in agreement with one of Bin et al .’s studies 62 . Figure 4(b) shows Zr 3d spectra with two peaks about 181 eV and 183 eV, which correspond to Zr 3d 3/2 and Zr 3d 5/2 , respectively, determined to be related to Zr 4+ of ZrO 2 63 .…”

Section: Resultsmentioning

confidence: 90%

“…Two more satellite peaks were identified at 861.19 (2p 3/2) and 880.32 (2p 1/2), which were due to oxidation products on the material surface, in agreement with one of Bin et al's studies. 62 Figure 4(b) shows Zr 3d spectra with two peaks about 181 eV and 183 eV, which correspond to Zr 3d 3/2 and Zr 3d 5/2 , respectively, determined to be related to Zr 4+ of ZrO 2 . 63 The C 1s spectrum reveals the existence of organic functional groups.…”

Section: Resultsmentioning

confidence: 99%

Bio‐inspired NiO/ZrO₂ mixed oxides (NZMO) for oxygen evolution reactions: from facile synthesis to electrochemical analysis

Zahra

Ahmad

Zequine

et al. 2022

J of Chemical Tech & Biotech

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Background: Earth's abundant natural materials can be exploited for their potential in producing economically viable and sustainable electrocatalysts for clean energy generation. Herein, we employed a low cost and environmentally benign synthesis approach using plant extract as capping agent to synthesize bimetallic NiO/ZrO 2 (nickel/Zirconiu mixed oxides; NZMO), and then studied their electrocatalytic properties.Results: The synthesized material was characterized for its elemental, compositional and morphological feature elucidation. The phytocapping agents were probed by Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectroscopy (GC-MS) which confirmed the active contribution of phytocompounds in synthesis as capping and stabilizing agents. Elemental and X-ray photoelectron spectroscopic (XPS) analysis manifested the presence of Ni, Zr and O content with morphological elucidations representing well-defined structures. The synthesized material was systematically investigated for electrocatalytic performance towards an oxygen evolution reaction (OER). Electrochemical testing showed that the NZMO exhibits remarkable enhanced catalytic activity with 0.39 V overpotential value and 72 mV dec −1 Tafel value at an existing density of 10 mA cm −2 , which is comparable to that of precious metal catalysts. Conclusion: Experimental investigation demonstrates that the remarkable OER performance of NZMO could be attributed to intrinsic catalytic properties originating as a result of binary materials. Moreover, the organic compounds involved in the synthesis mechanism also could be the major contributors in terms of provision of active sites due to protons. Thus, the present work presents a promising electrocatalytic material using mixed metal oxides and paves a novel path toward the green synthesis of binary oxides with improved electrocatalytic performance.

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“…Scientists confront several constraints in modifying the synthesis technique and circumstances to execute the peak performance in nanomaterials for varied applications. Doping is the prime procedure for competently controlling the facial characteristics of nanoscale-structured semiconductors and in acquiring technologically important material by creating an island of charge carriers, resulting in significant variations in their existing opto-electrical, magnetic and biological traits [16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Revealing the Substitution of Zn2+ on Nano-Structural, Magneto-Electrical, Antibacterial and Antifungal Attributes of Nickel Oxide Nanoparticles via Sol-Gel Strategy

Aslinjensipriya¹,

R²,

Ragu³

et al. 2022

Preprint

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Transition metal oxides have gathered momentum among the scientific community on account of their peculiar procession in physico-chemical, opto-electronic, magnetic, electrochemical, and biological attributes resulting from anisotropic charge distribution of partly filled d-orbitals, non-stoichiometric behaviour, and diverse oxidation states of the cations. The current work emphasize on the systematic synthesis and characterization of pure and zinc (Zn) incorporated nickel oxide (NiO) nanoparticles in varying concentrations ZnxNi1−xO (x = 0, 0.1, 0.2, and 0.3) via a scalable sol-gel approach assisting citric acid (C6H8O7) as a congealing factor. A series of extensive analyses were executed to investigate the structural, opto-electrical, and magnetic characteristics of prepared nanoparticles. X-Ray Diffraction (XRD) studies confirmed the face-centered cubic structure of as-synthesized samples and the corresponding crystallite size is found to decrease with an increasing dopant concentration as estimated from the Scherrer method. Scanning electron microscopy studies portrayed the spherical structure and porous nature of NiO nanoparticles. Particle size calculated from SEM shows the decreasing trend with dopant discrepancy which is in accordance with crystallite size measured from XRD results. Energy Dispersive X-ray (EDX) spectra revealed the presence of estimated molecular assembly in synthesized samples. The cubic configuration and the presence of functional groups existing in synthesized nanoparticles were endorsed from Fourier Transform Infra-Red (FTIR) spectra. The optical absorption spectrum examined from UltraViolet-visible (UV-vis) spectroscopy evaluates the energy bandgap and it is noticed to increase from 2.48 to 2.87 eV affirming the Burstein Moss shift. The energy dispersion of optical parameters plays a crucial contribution in optical materials pursuant to its prominence in optical communications and in fabricating novel devices for spectral dispersion. Optical and energy dispersion parameters evaluated from Wemple-DiDomenico (WDD) model and non-linear optical parameters were deliberated from optical studies. Urbach energy and another pivotal optical criterion highly correlated with the bandgap energy anchored in the fabrication of optoelectronic devices were assessed. The electrical characteristics such as dielectric constant, loss, and conductivity exhibited by pure and Zn doped nickel oxide nanoparticles were reported. Molecular electronic polarizability assessed through elementary solid-state parameters is in better concurrence with diverse relations like Clausius-Mossotti, Lorentz-Lorent, bulk modulus, optical electronegativity, energy band gap. The pore size distribution of substance matrix and the associated surface area were elucidated from Brunauer-Emmett-Teller (BET) analysis. Dispersive magnetic properties and two pivotal parameters were derived from the Law of Approach to Saturation (LAS) operandi. Further, microbial cell mechanism was illustrated through nano-architecture design, and the antibacterial and antifungal activity encountered by undoped and zinc doped NiO nanoparticles against different microbial strains were deeply discussed for pilot production of antimicrobial agents.

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NiO nanoparticles synthesized by using Tagetes erecta L leaf extract and their activities for photocatalysis, electrochemical sensing, and antibacterial features

Cited by 31 publications

References 51 publications

Eco-Friendly Synthesis and Comparative In Vitro Biological Evaluation of Silver Nanoparticles Using Tagetes erecta Flower Extracts

Eco-Friendly Synthesis and Comparative In Vitro Biological Evaluation of Silver Nanoparticles Using Tagetes erecta Flower Extracts

Bio‐inspired NiO/ZrO₂ mixed oxides (NZMO) for oxygen evolution reactions: from facile synthesis to electrochemical analysis

Revealing the Substitution of Zn2+ on Nano-Structural, Magneto-Electrical, Antibacterial and Antifungal Attributes of Nickel Oxide Nanoparticles via Sol-Gel Strategy

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NiO nanoparticles synthesized by using Tagetes erecta L leaf extract and their activities for photocatalysis, electrochemical sensing, and antibacterial features

Cited by 31 publications

References 51 publications

Eco-Friendly Synthesis and Comparative In Vitro Biological Evaluation of Silver Nanoparticles Using Tagetes erecta Flower Extracts

Eco-Friendly Synthesis and Comparative In Vitro Biological Evaluation of Silver Nanoparticles Using Tagetes erecta Flower Extracts

Bio‐inspired NiO/ZrO2 mixed oxides (NZMO) for oxygen evolution reactions: from facile synthesis to electrochemical analysis

Revealing the Substitution of Zn2+ on Nano-Structural, Magneto-Electrical, Antibacterial and Antifungal Attributes of Nickel Oxide Nanoparticles via Sol-Gel Strategy

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Bio‐inspired NiO/ZrO₂ mixed oxides (NZMO) for oxygen evolution reactions: from facile synthesis to electrochemical analysis