Green synthesis of zinc oxide nanoparticles using Citrus sinensis extract

Luque, P.A.; Soto-Robles, C.A.; Nava, O.; Gómez-Gutiérrez, C.M.; Castro-Beltrán, A.; Garrafa-Gálvez, H.E.; Vilchis-Néstor, Alfredo R.; Olivas, A.

doi:10.1007/s10854-018-9015-2

Cited by 77 publications

(31 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the plots of (αhν) 2 versus hυ (E, eV) of the CPE/ZnO NPs using the UV spectra, (graph not shown), the Eg values were determined and discovered to be 3.26, 3.20 and 3.30 eV for GPE/ZnO NPs, LPE/ZnO NPs, and OPE/ZnO NPs, respectively. These values are very comparable to those presented in earlier literature [ 36 ]; however, less than 3.37 eV which could be attributed to changes in lattice parameters [ 38 , 42 ]. The computed Eg result reveals that the energy bandgap for all CPE/ZnO NPs is roughly the same, but specifically closely follows this order: LPE/ZnO NPs < GPE/ZnO NPs < OPE/ZnO NPs.…”

Section: Resultssupporting

confidence: 90%

See 1 more Smart Citation

Green Wastes Mediated Zinc Oxide Nanoparticles: Synthesis, Characterization and Electrochemical Studies

et al. 2020

View full text Add to dashboard Cite

Zinc Oxide (ZnO) nanoparticles were prepared using a simple green synthesis approach in an alkaline medium, from three different extracts of citrus peels waste. The synthesized nano-crystalline materials were characterized by using ultraviolet-visible spectroscopy (UV-vis), x-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), energy-dispersive x-ray spectroscopy (EDS), environmental scanning electron microscopy (ESEM), and transmission electron microscopy (TEM). UV-vis analysis of the nanoparticles showed broad peaks around 360 nm for the ZnO NPs (Zinc oxide nanoparticles) from three citrus peels’ extracts. ZnO NPs exhibited Zn–O band close to 553 cm−1, which further verified the formation of the ZnO NPs. A bandgap of 3.26 eV, 3.20 eV and 3.30 eV was calculated for the ZnO NPs from grape (ZnO NPs/GPE), lemon (ZnO NPs/LPE), and orange (ZnO NPs/OPE) peels extract, respectively. The average grain sizes of the ZnO nanoparticles were evaluated to be 30.28 nm, 21.98 nm, and 18.49 nm for grape (ZnO NPs/GPE), lemon (ZnO NPs/LPE), and orange (ZnO NPs/OPE) peel extract, respectively. The surface morphology and sizes of the nanoparticle were confirmed by ESEM and TEM analysis, respectively. Furthermore, the zeta potential of the as-prepared ZnO NPs from OPE, LPE, and GPE was −34.2 mV, −38.8 mV, and −42.9 mV, respectively, indicating the high stability of the nanoparticles. Cyclic voltammetric properties of the synthesized nanoparticles were investigated across extracts, and the results showed that the citrus peels extracts (CPE) mediated ZnO NPs modified screen plate carbon (SPC/ ZnO NPs/CPE) electrodes exhibited enhanced catalytic properties when compared with the bare SPCE. The electroactive areas computed from the enhancement of the bare SPCE was approximately three times for SPCE/ ZnO NPs/LPE, and SPCE/ZnO NPs/GPE, and two times for SPCE/ZnO NPs/OPE, higher than that of the bare SPCE. Comparison across the extracts suggested that the catalytic properties of the nanoparticles were unique in ZnO NPs from GPE.

show abstract

Section: Resultssupporting

confidence: 90%

“…The extraction of the citrus peels followed the procedure described in our previous work [ 35 ] and another literature report [ 36 ]. The filtrate was later kept in the refrigerator for subsequent use.…”

Section: Methodsmentioning

confidence: 99%

Green Wastes Mediated Zinc Oxide Nanoparticles: Synthesis, Characterization and Electrochemical Studies

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The formation of ZnONPs was visually confirmed by the color change of the Zn(NO 3 ) 2 solution from off-white to yellowish after the addition of neem leaf extract. A typical peak of ZnONPs was recorded at 378 nm as shown in Figure 3 [53][54][55]. To further confirm the formation of AgNPs and ZnONPs X-ray diffraction patterns of the two samples were collected and are shown in The XRD results clearly show that the AgNPs and ZnONPs prepared by the Neem extract are both crystalline in nature.…”

Section: Resultsmentioning

confidence: 99%

Green Synthesis of an Activated Carbon-Supported Ag and ZnO Nanocomposite for Photocatalytic Degradation and Its Antibacterial Activities

2020

View full text Add to dashboard Cite

In this study Ag nanoparticles (AgNPs), ZnO nanoparticles (ZnONPs), and Ag/ZnO nanocomposites were greenly synthesized and loaded on activated carbon via three different routes: simple impregnation, successive precipitation, and co-precipitation. Neem leaf extract was used as a reducing and stabilizing agent. The morphological and structural properties of the synthesized nanocomposites have been examined using different analytical techniques such as XRD, SEM, FTIR, and UV. The antibacterial and catalytic activity of the synthesized nanocomposites were examined and compared. The results showed that AgNPs loaded on activated carbon (Ag/AC) has the best catalytic activity compared to the other nanocomposites, which is attributed to the good dispersal of AgNPs on the surface of activated carbon. Furthermore, AgNPs showed the best antibacterial effect on eight out of 16 tested pathogens. Results also showed that the order of precipitation is an important factor, as both antibacterial activities and photodegradation activities were higher for ZnO/Ag/AC than Ag/ZnO/AC. Furthermore, the co-precipitation method was shown to be better than the successive precipitation method for 4-nitrophenol photodegradation and 14 out of the 16 antibacterial tests performed.

show abstract

“…Still rising the volume of V. trifolia extract to 30-40 ml, ZnO NPs were extremely agglomerated because the smaller size nanoparticles bind together and formed secondary bulk nanoparticles [41]. Luque et al [42] reported the effect of Citrus sinensis peel extract concentration (1%, 2%, and 4% by weight) on the surface morphology and size of the ZnO NPs. e HRTEM micrographs show different extract concentration influences in the size, shape, and surface morphology of the ZnO NPs [42].…”

Section: Effect Of Plant Extractmentioning

confidence: 99%

“…Luque et al [42] reported the effect of Citrus sinensis peel extract concentration (1%, 2%, and 4% by weight) on the surface morphology and size of the ZnO NPs. e HRTEM micrographs show different extract concentration influences in the size, shape, and surface morphology of the ZnO NPs [42].…”

Section: Effect Of Plant Extractmentioning

confidence: 99%

Plant-Mediated Biosynthesis and Photocatalysis Activities of Zinc Oxide Nanoparticles: A Prospect towards Dyes Mineralization

Fagier

2021

Journal of Nanotechnology

View full text Add to dashboard Cite

In recent years, nanoparticles synthesis by green synthesis has gained extensive attention as a facile, inexpensive, and environmentally friendly method compared with chemical and physical synthesis methods. This review covered the biosynthesis of zinc oxide nanoparticles (ZnO NPs), including the procedure and mechanism. Factors affecting the formation of ZnO NPs are discussed. The presence of active bioorganic molecules in plant extract played a vital role in the formation of ZnO NPs as a natural green medium in the metallic ion reduction processes. ZnO NPs exhibit attractive photocatalysis properties due to electrochemical stability, high electron mobility, and large surface area. In this review, the procedure and mechanism of the ZnO photocatalysis process are studied. The effects of dyes amount, catalysts, and light on photodegradation efficiency are also considered. This review provides useful information for researchers who are dealing with green synthesis of ZnO NPs. Moreover, it can provide investigators with different perceptions towards the efficiency of biosynthesized ZnO NPs on dyes degradation and its restrictions.

show abstract

Green synthesis of zinc oxide nanoparticles using Citrus sinensis extract

Cited by 77 publications

References 27 publications

Green Wastes Mediated Zinc Oxide Nanoparticles: Synthesis, Characterization and Electrochemical Studies

Green Wastes Mediated Zinc Oxide Nanoparticles: Synthesis, Characterization and Electrochemical Studies

Green Synthesis of an Activated Carbon-Supported Ag and ZnO Nanocomposite for Photocatalytic Degradation and Its Antibacterial Activities

Plant-Mediated Biosynthesis and Photocatalysis Activities of Zinc Oxide Nanoparticles: A Prospect towards Dyes Mineralization

Contact Info

Product

Resources

About