Green synthesis of zinc oxide nanoparticles using typha latifolia. L leaf extract for photocatalytic applications

Kumar, Balvinder; Arthanareeswari, M.; Devikala, S.; Sridharan, M.; Selvi, J. Arockia; Malini, T. Pushpa

doi:10.1016/j.matpr.2019.04.155

Cited by 19 publications

(5 citation statements)

References 18 publications

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“…4 which confirmed the crystalline nature and orientation of zinc oxide nanoflowers. The sharp peak indicated the smaller size of the formed BR-ZnONFs (Praveen et al 2019). The peaks at 2θ magnitudes of 31.53°, 34.13°, 35.97°, 47.21°, 56.28°, 62.62°, 67.56°, and 76.82° were indexed to (100), ( 002), ( 101), ( 102), ( 110), ( 103), (112), and (202) planes which matched with JCPDS-36-1451 and confirmed the formation of a crystalline hexagonal assembly (Awwad et al 2020).…”

Section: Xrd Studiesmentioning

confidence: 99%

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

et al. 2021

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In the current work, the leaf extract of Bridelia retusa was used for the first time to synthesize zinc oxide nanoparticles (ZnONPs). A zinc nanoparticle-specific 364-nm peak was discerned via UV–Vis studies with a typical bandgap energy of 3.41 eV. FE-SEM micrographs revealed flower-shaped structure of the ZnONPs. EDS analysis corroborated the presence of zinc and oxygen. XRD spectrum established the wurtzite structure, sized at 11.06 nm. The mesoporous texture (4.89 nm) of the nanoparticles was deduced from BET analysis, proving a higher specific surface area than commercial ZnONPs. FTIR spectroscopy resulted in absorption bands typical for ZnONPs. Within a span of 165 min, under solar irradiation, the ZnONPs facilitated the photocatalytic degradation of Rhodamine B dye upto 94.74%. Exhibiting pseudo-first-order kinetics, the process had a degradation constant of 0.0109 min−1. It was concluded that numerous factors led to the high degradation efficiency. High values of bandgap energy and specific surface area, along with the mesoporous and crystalline nature of the ZnONPs led to the observed effect. The ZnONPs were also stabilized by the phytochemicals in the B. retusa leaves. The study is thus able to successfully demonstrate the huge potential in the field of environmental nanoremediation. The viability of using ZnONPs as solar photocatalysts for treating dye-laden industrial wastewater was thus attested.

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Section: Xrd Studiesmentioning

confidence: 99%

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

et al. 2021

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“…A wide range of dyes and heavy metals are used in several industries, including textile, paper and pulp, pharmaceuticals, food coloring, paints, inks, ceramic materials, leather tanning, photoelectrochemical manufacturing, as well as hair coloring product lines, the result of rising population and industrialization [1]. One of the main organic pollutants in industrial effluent is phenols and phenolic compounds.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermally Synthesized Cu<sub>2</sub>ZnSnS<sub>4</sub> Nanoparticles for Photocatalytic Degradation of Rhodamine B Dye

Saravanan

Sarathkumar

Sivakumar

2023

JNanoR

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Industrial dyes contained a wide range of organic compounds that could affect the environment and high dimensional challenges to humans. In recent years, the environmentally safe and inexpensive quaternary copper-based chalcogenide Cu2ZnSnS4 (CZTS) has emerged as a material for photovoltaics and photocatalysis. CZTS nanoparticles were prepared in this investigation using the hydrothermal route at 210 °C for 24 h without the addition of a surfactant or capping agents. Rhodamine B (RhB), a carcinogenic dye, was degraded using the synthesized material through a photocatalytic process. The structural, morphological, optical, and photocatalytic characteristics of CZTS nanoparticles were examined using X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscopy (FE-SEM), and UV-vis spectroscopy. The average particle size of CZTS is found to be 31 nm with crystalline nature have been characterized by XRD. The results demonstrate that the synthesized sample has mixed morphological structures such as clew-like and flower-like structures and a bandgap of 1.50 eV. CZTS nanoparticles were used as photocatalysts under direct sunlight for Rhodamine B degradation, with the fastest degradation efficiency of 72% at 50 minutes. The results show that surfactant-free hydrothermally synthesized CZTS nanoparticles are a very promising material for the degradation of RhB dye due to the rapid degradation rate and high degradation efficiency.

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“…However, many different procedures have been tried for the remediation of phenols like adsorption, solvent extraction, chlorination and membrane separation, these approaches have certain characteristic downsides as they produce secondary pollution because of the phase transfer of the pollutants. In environmental sanitation, the photocatalytic route is found to be more ecological, which helps to reduce the undesirable generation of by‐products under mild experimental conditions [48–50] . NaBH 4 can be used as a reducing/initiating agent in the reduction reaction in aqueous medium, which is simple, greener and low cost.…”

Section: Introductionmentioning

confidence: 99%

Effect of Europium, Yttrium and Lutetium Doping on the Photocatalytic Property of CeO₂ Nanoparticles in the Reduction of p‐nitrophenol under Visible Light

et al. 2022

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The current study focuses on the photocatalytic reduction of p‐nitrophenol using Europium, Yttrium and Lutetium doped Cerium oxide (CeO2) nanoparticles which were synthesized via chemical precipitation method. The synthesized nanoparticles were subjected to characterization using different analytical tools to confirm the formation of nanoparticles. They were characterized using X‐Ray diffraction (XRD) studies, Fourier Transform‐Infrared spectroscopy (FT‐IR), High resolution Scanning electron microscopy (HRSEM), High resolution Transmission electron microscopy (HRTEM), Energy dispersive X‐ray analysis (EDAX), X‐ray photoelectron spectroscopy (XPS), and UV‐Diffuse reflectance spectroscopy (UV‐DRS) studies. The synthesized rare earth nanomaterials were successfully applied for the photoreduction of the organic pollutant p‐nitrophenol with the addition of NaBH4 as reducing agent using 300 W Xenon lamp. The addition of the synthesized photocatalyst enhanced the reduction ability of NaBH4 in reducing p‐nitrophenol to p‐aminophenol. The results confirmed the superior photocatalytic activity of Lu0.05CeO2 compared to the other rare earth doped photocatalysts. The time taken by Lu0.05CeO2 photocatalyst for the complete reduction of p‐nitrophenol was 45 min and was found to be 96 % efficient in the reduction of 0.5 mM p‐nitrophenol to p‐aminophenol compared to the other photocatalysts.

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Green synthesis of zinc oxide nanoparticles using typha latifolia. L leaf extract for photocatalytic applications

Cited by 19 publications

References 18 publications

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

Hydrothermally Synthesized Cu<sub>2</sub>ZnSnS<sub>4</sub> Nanoparticles for Photocatalytic Degradation of Rhodamine B Dye

Effect of Europium, Yttrium and Lutetium Doping on the Photocatalytic Property of CeO₂ Nanoparticles in the Reduction of p‐nitrophenol under Visible Light

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Green synthesis of zinc oxide nanoparticles using typha latifolia. L leaf extract for photocatalytic applications

Cited by 19 publications

References 18 publications

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

Characterization and photocatalytic activity of ZnO nanoflowers synthesized using Bridelia retusa leaf extract

Hydrothermally Synthesized Cu<sub>2</sub>ZnSnS<sub>4</sub> Nanoparticles for Photocatalytic Degradation of Rhodamine B Dye

Effect of Europium, Yttrium and Lutetium Doping on the Photocatalytic Property of CeO2 Nanoparticles in the Reduction of p‐nitrophenol under Visible Light

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Effect of Europium, Yttrium and Lutetium Doping on the Photocatalytic Property of CeO₂ Nanoparticles in the Reduction of p‐nitrophenol under Visible Light