Rapid photocatalytic degradation of 2, 4-dichlorophenoxy acetic acid by ZnO nanoparticles synthesized using the leaf extract of Muntingia calabura

Vinayagam, Ramesh; Sharma, Gaurav; Murugesan, Gokulakrishnan; Pai, Sathish; Gupta, Devansh; Narasimhan, Manoj Kumar; Kaviyarasu, K.; Varadavenkatesan, Thivaharan; Selvaraj, Raja

doi:10.1016/j.molstruc.2022.133127

Cited by 41 publications

(3 citation statements)

References 46 publications

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“…Based on the pattern of TGA and DTA, the calcination temperature was chosen at 600°C. The stages of mass reduction are in accordance with those reported by R. Vinayagam et al (2022) who synthesized ZnO anoparticles using Muntingia calabura leaf extract [19].…”

Section: Discussionsupporting

confidence: 90%

Biosynthesis of ZnO Nanoparticles Using Spirulina platensis Based on Calcination Temperature Changes and Its Antioxidant Activity

Sari

Rilda

ARMAINI

2023

CSIJ

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The effect of different calcination temperatures on molecular structure, morphology, and antioxidant activity was investigated for Zinc Oxide nanoparticles synthesized using the sol-gel method and the capping agent Spirulina platensis. The prepared nanoparticle ZnO was calcined at 160°C, 300°C, and 600°C according to the results of the DTA-TGA analysis. The effect of different calcination temperatures on the characterization of the prepared samples was studied using Fourier Transform Infrared (FTIR), X-ray Diffraction (XRD), and Field Emission-Scanning Electron Microscope (FE-SEM). In addition, the potential antioxidant activity of ZnO nanoparticles was investigated using the DPPH method. The results showed that FT-IR and XRD confirmed the presence of ZnO nanoparticles with good purity and small crystal size found in calcified ZnO nanoparticles at 600°C. FE-SEM confirmed the morphology ZnO nanoparticle produced at 600°C calcination are spherics, cubes, and nanorods with different particle sizes with range 50 – 150 nm. ZnO nanoparticles calcined at 600°C also showed higher antioxidant activity when compared to other calcination temperatures.

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Section: Discussionsupporting

confidence: 90%

Biosynthesis of ZnO Nanoparticles Using Spirulina platensis Based on Calcination Temperature Changes and Its Antioxidant Activity

Sari

Rilda

ARMAINI

2023

CSIJ

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“…Green synthesis is widely favored due to its environmentally friendly, cost-effective nature, and often utilizing plant components as agents for nanoparticle formation. Stabilizers are crucial in this process to prevent nanoparticle agglomeration, which can take the form of surfactants, polymer molecules, or polymer molecules bonded to nanoparticles [2,3,4].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Nanocomposite ZnO and Red Betel (Piper crocatum Ruiz & Pav)

Muflihah,

Sustini,

Aimon

et al. 2024

J. Phys.: Conf. Ser.

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Green synthesis of zinc oxide nanoparticles is one of the most widely conducted research nowadays. The need for a facile and environmental synthesis method for nanomaterial is something interesting to develop. Red betel, which is a typical Indonesian herbal plant and abundant to find, has a phytochemicals property that potential application for bioreductors and capping agents. In this study, experiments were carried out with the aim of green synthesize nanocomposite ZnO-red betel leaves and studying their properties. The obtained powder was characterized with Fourier-Transform Infrared Spectroscopy, Scanning Electron Microscope, and Energy Dispersive X-ray Spectroscopy. The results showed that the obtained sample is ZnO nanoparticles with uneven surfaces with diameter < 100 nm.

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“…Although advanced technologies such as adsorption (Vinayagam, Pai, et al, 2022), electrocatalysis (Dargahi et al, 2018, 2019; Samarghandi et al, 2019; Yang et al, 2019), photocatalysis (Vinayagam, Sharma, et al, 2022), molecularly imprinted polymers (Söylemez & Güven, 2020), and the combination of methods such as sono electro‐Fenton (Dargahi et al, 2021) and electrocatalysis/adsorption processes (Samarghandi et al, 2021) have been investigated for the removal of OCs in aqueous solutions, recent work aims to balance chemical use and energy consumption for efficient degradation of these compounds (Carboneras et al, 2017; Chair et al, 2017; Singh, Philip, et al, 2017; Bhadouria et al, 2020). Some disadvantages of physicochemical methods, such as secondary contamination and the formation of intermediates with disruptive functions for living organisms, have already been mentioned (Pereira et al, 2015; Wang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Immobilizing white‐rot fungi laccase: Toward bio‐derived supports as a circular economy approach in organochlorine removal

Serbent,

Magario,

Saux

2023

Biotech & Bioengineering

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Despite their high persistence in the environment, organochlorines (OC) are widely used in the pharmaceutical industry, in plastics, and in the manufacture of pesticides, among other applications. These compounds and the byproducts of their decomposition deserve attention and efficient proposals for their treatment. Among sustainable alternatives, the use of ligninolytic enzymes (LEs) from fungi stands out, as these molecules can catalyze the transformation of a wide range of pollutants. Among LEs, laccases (Lac) are known for their efficiency as biocatalysts in the conversion of organic pollutants. Their application in biotechnological processes is possible, but the enzymes are often unstable and difficult to recover after use, driving up costs. Immobilization of enzymes on a matrix (support or solid carrier) allows recovery and stabilization of this catalytic capacity. Agricultural residual biomass is a passive environmental asset. Although underestimated and still treated as an undesirable component, residual biomass can be used as a low‐cost adsorbent and as a support for the immobilization of enzymes. In this review, the adsorption capacity and immobilization of fungal Lac on supports made from residual biomass, including compounds such as biochar, for the removal of OC compounds are analyzed and compared with the use of synthetic supports. A qualitative and quantitative comparison of the reported results was made. In this context, the use of peanut shells is highlighted in view of the increasing peanut production worldwide. The linkage of methods with circular economy approaches that can be applied in practice is discussed.

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Rapid photocatalytic degradation of 2, 4-dichlorophenoxy acetic acid by ZnO nanoparticles synthesized using the leaf extract of Muntingia calabura

Cited by 41 publications

References 46 publications

Biosynthesis of ZnO Nanoparticles Using Spirulina platensis Based on Calcination Temperature Changes and Its Antioxidant Activity

Biosynthesis of ZnO Nanoparticles Using Spirulina platensis Based on Calcination Temperature Changes and Its Antioxidant Activity

Facile Synthesis of Nanocomposite ZnO and Red Betel (Piper crocatum Ruiz & Pav)

Immobilizing white‐rot fungi laccase: Toward bio‐derived supports as a circular economy approach in organochlorine removal

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