Enhanced Photocatalytic Activity of Electrospun PAN/Ag‐G NFs Under Solar Irradiation for Effective Degradation of Hazardous Organic Dyes

Shah, Akshara P.; Jain, Shilpa; Shimpi, Navinchandra G.

doi:10.1002/slct.202000128

Cited by 24 publications

(8 citation statements)

References 40 publications

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“…In consumer goods, including paints, printing inks, paper, pulp, and plastics, various dyes have been used for many years. Some organic dyes are widely used and released in water, such as in textiles and other industries [5][6][7][8][9]. Toxic chemicals such as insecticides and organic dyes may be contained in industrial wastewater.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of ZnO nanoparticles using peels of Passiflora foetida and study of its activity as an efficient catalyst for the degradation of hazardous organic dye

2021

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Creating a sustainable and effective approach to handling organic contaminants from industrial waste is an ongoing problem. In the present study, ZnO nanoparticles (ZnO NPs) were synthesized under a controlled ultrasound cavitation technique using the extract of Passiflora foetida fruit peels, which act as a reducing (i.e., reduction of metal salt) and stabilizing agent. The formation of monodispersed and hexagonal morphology (average size approximately 58 nm with BET surface area 30.83m2/g). The synthesized ZnO NPs were characterized by a various technique such as UV–visible spectroscopy, X-ray diffraction (XRD), Fourier-transform infrared (FTIR), Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), Transmission electron microscopy (TEM), Thermogravimetric analysis (TGA) and Dynamic light scattering (DLS). Further, the XRD pattern confirmed the hexagonal wurtzite structure of synthesized ZnONPs. The ZnO NPs exhibit excellent degradation efficiency towards organic pollutant dyes, i.e., Methylene blue (MB) (93.25% removal) and Rhodamine B (91.06% removal) in 70 min, under natural sunlight with apparent rate constant 0.0337 min−1 (R2 = 0.9749) and 0.0347 min−1 (R2 = 0.9026) respectively.Zeta potential study shows the presence of a negative charge on the surface of ZnO NPs. The use of green synthesized ZnO NPs is a good choice for wastewater treatment, given their high reusability and photocatalytic efficiency, along with adaptability to green synthesis.

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Section: Introductionmentioning

confidence: 99%

Synthesis of ZnO nanoparticles using peels of Passiflora foetida and study of its activity as an efficient catalyst for the degradation of hazardous organic dye

2021

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“…Silver nanoparticles are used as catalysts in a vast number of reactions. − They are also widely explored as supercapacitor electrode materials. The utilization of Ag nanoparticle-decorated single-walled carbon nanotubes exploited as electrodes for supercapacitors is observed to have a capacitance value of 106 F/g .…”

Section: Introductionmentioning

confidence: 99%

TiO₂–CeO₂/Ag Composite as Electrode Material for Supercapacitors

Kashyap,

Bortamuly,

Elias

et al. 2024

ACS Appl. Nano Mater.

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Electrochemical energy technologies play a pivotal role in the quest for a sustainable and cleaner future owing to their remarkable potential to revolutionize the way we generate, store, and utilize energy. In this context, the present study explores the synthesis and characterization of TiO 2 −CeO 2 composites having surface-dispersed silver nanoparticles (TiO 2 −CeO 2 /Ag) as an efficient electrode material for supercapacitor application. The developed electrode materials are systematically characterized by using different techniques such as Fourier-transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The electrochemical performance of the electrode materials is assessed by using cyclic voltammetry, galvanometric charge−discharge, and electrochemical impedance spectroscopy. The obtained results show that the electrode material with 2 wt % Ag distributed over TiO 2 −CeO 2 composites (TiO 2 −CeO 2 /Ag 2X) is the best material with the highest specific capacitance of 996 F/g and excellent cycling stability even after 2500 cycles. The obtained results give clear credence to the idea that the TiO 2 −CeO 2 /Ag composites could serve as an efficient electrode material for energy storage applications.

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“…The industrial sector produces hundreds of different products, including printing inks, pulp, paints, and plastics, all of which are produced using a large number of synthetic dyes. Some of these organic dyes are widely used in the textile industry and thrown into water streams without prior treatment [ 5 , 6 , 7 , 8 , 9 ]. In addition to organic dyes and insecticides, industrial wastewater contains toxic compounds.…”

Section: Introductionmentioning

confidence: 99%

Biogenic Preparation of ZnO Nanostructures Using Leafy Spinach Extract for High-Performance Photodegradation of Methylene Blue under the Illumination of Natural Sunlight

et al. 2023

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To cope with environmental pollution caused by toxic emissions into water streams, high-performance photocatalysts based on ZnO semiconductor materials are urgently needed. In this study, ZnO nanostructures are synthesized using leafy spinach extract using a biogenic approach. By using phytochemicals contained in spinach, ZnO nanorods are transformed into large clusters assembled with nanosheets with visible porous structures. Through X-ray diffraction, it has been demonstrated that leafy spinach extract prepared with ZnO is hexagonal in structure. Surface properties of ZnO were altered by using 10 mL, 20 mL, 30 mL, and 40 mL quantities of leafy spinach extract. The size of ZnO crystallites is typically 14 nanometers. In the presence of sunlight, ZnO nanostructures mineralized methylene blue. Studies investigated photocatalyst doses, dye concentrations, pH effects on dye solutions, and scavengers. The ZnO nanostructures prepared with 40 mL of leafy spinach extract outperformed the degradation efficiency of 99.9% for the MB since hydroxyl radicals were primarily responsible for degradation. During degradation, first-order kinetics were observed. Leafy spinach extract could be used to develop novel photocatalysts for the production of solar hydrogen and environmental hydrogen.

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Enhanced Photocatalytic Activity of Electrospun PAN/Ag‐G NFs Under Solar Irradiation for Effective Degradation of Hazardous Organic Dyes

Cited by 24 publications

References 40 publications

Synthesis of ZnO nanoparticles using peels of Passiflora foetida and study of its activity as an efficient catalyst for the degradation of hazardous organic dye

Synthesis of ZnO nanoparticles using peels of Passiflora foetida and study of its activity as an efficient catalyst for the degradation of hazardous organic dye

TiO₂–CeO₂/Ag Composite as Electrode Material for Supercapacitors

Biogenic Preparation of ZnO Nanostructures Using Leafy Spinach Extract for High-Performance Photodegradation of Methylene Blue under the Illumination of Natural Sunlight

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Enhanced Photocatalytic Activity of Electrospun PAN/Ag‐G NFs Under Solar Irradiation for Effective Degradation of Hazardous Organic Dyes

Cited by 24 publications

References 40 publications

Synthesis of ZnO nanoparticles using peels of Passiflora foetida and study of its activity as an efficient catalyst for the degradation of hazardous organic dye

Synthesis of ZnO nanoparticles using peels of Passiflora foetida and study of its activity as an efficient catalyst for the degradation of hazardous organic dye

TiO2–CeO2/Ag Composite as Electrode Material for Supercapacitors

Biogenic Preparation of ZnO Nanostructures Using Leafy Spinach Extract for High-Performance Photodegradation of Methylene Blue under the Illumination of Natural Sunlight

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TiO₂–CeO₂/Ag Composite as Electrode Material for Supercapacitors