An efficient photocatalytic degradation of organic dyes under visible light using zinc stannate (Zn2SnO4) nanorods prepared by microwave irradiation

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

doi:10.1016/j.nanoso.2019.100410

Cited by 43 publications

(28 citation statements)

References 45 publications

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“…Degradation efficiency Ag‐ZnO (0.25 : 1) nanoparticles for dyes are found to be greater as compare to ZnO nanoparticles and Ag‐ZnO with molar ratio of (0.1 : 1 and 0.5 : 1). The degradation behavior of dye has been described by a reduction in charge recombination and the adsorption interaction between organic dyes and nanoparticles [10,58] . This effective degradation affecting on the rate constant of the material was due to appearance of high stability showing zeta potential of−22.5 mV for Ag‐ZnO (0.25 : 1), while for ZnO and Ag‐ZnO (0.1 : 1 and 0.5 : 1) zeta potential was observed to b−18.4,−20.4 and−23.7 mV.…”

Section: Resultsmentioning

confidence: 99%

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Ultrasound‐Assisted Green Synthesis of Ag‐Decorated ZnO Nanoparticles UsingExcoecaria agallochaLeaf Extract and Evaluation of Their Photocatalytic and Biological Activity

et al. 2020

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The present study deals with the synthesis of ZnO and Ag‐ZnO nanoparticles using Excoecaria agallocha leaf extract under a controlled ultrasound cavitation technique. The characterization of the as‐synthesized ZnO and Ag‐ZnO nanoparticles (different molar concentration of Ag) were subjected to Fourier transform infrared spectroscopy (FTIR), X‐ray diffraction analysis (XRD), UV‐Visible Diffuse reflectance spectroscopy (UV‐Vis DRS), Thermogravimetric analysis (TGA), N2 adsorption‐desorption isotherm (BET), scanning electron microscopy(SEM) and transmission electron microscopy (TEM). The photocatalytic performance of ZnO and Ag‐ZnO nanoparticles as catalysts were studied for hazardous organic dyes such as methylene blue (MB) and rhodamine‐B (Rh−B) under solar light irradiation. The degradation study follows pseudo‐first‐order kinetics. The effective degradation of MB was found to be 56.44 % (ZnO nanoparticles) and 98.44 % Ag‐ZnO nanoparticles, respectively at 100 min at the molar ratio (0.25 : 1). Whereas, Rh−B shows 27.50 % (ZnO nanoparticles) and 98.83 % at the same molar ratio of Ag‐ZnO nanoparticles at 80 min. Among the as‐synthesized nanoparticles, Ag‐ZnO at molar ratio 0.25 : 1 shows effective photocatalytic activity. Besides these as‐synthesized nanoparticles exhibited good antimicrobial activity with an increase in Ag nanoparticles decorated into ZnO. A similar trend was observed in antioxidant and anti‐inflammatory activity.

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Section: Resultsmentioning

confidence: 99%

“…The degradation behavior of dye has been described by a reduction in charge recombination and the adsorption interaction between organic dyes and nanoparticles. [10,58] This effective degradation affecting on the…”

Section: Photocatalytic Activitymentioning

confidence: 99%

Ultrasound‐Assisted Green Synthesis of Ag‐Decorated ZnO Nanoparticles UsingExcoecaria agallochaLeaf Extract and Evaluation of Their Photocatalytic and Biological Activity

et al. 2020

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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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“…OH°, O°À 2 , HO°2 ÀÁ þ dye ! degradation products (21) Considering photocatalytic activity under visible light, Jain et al [84] proposes the following equations:…”

Section: Photocatalysis and Piezo(photo)catalysismentioning

confidence: 99%

Hydrothermal Synthesis of Zinc Tin Oxide Nanostructures for Photocatalysis, Energy Harvesting and Electronics

Rovisco¹,

Branquinho²,

Pinto³

et al. 2021

Novel Nanomaterials

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The massification of Internet of Things (IoT) and Smart Surfaces has increased the demand for nanomaterials excelling at specific properties required for their target application, but also offering multifunctionality, conformal integration in multiple surfaces and sustainability, in line with the European Green Deal goals. Metal oxides have been key materials for this end, finding applications from flexible electronics to photocatalysis and energy harvesting, with multicomponent materials as zinc tin oxide (ZTO) emerging as some of the most promising possibilities. This chapter is dedicated to the hydrothermal synthesis of ZTO nanostructures, expanding the already wide potential of ZnO. A literature review on the latest progress on the synthesis of a multitude of ZTO nanostructures is provided (e.g., nanowires, nanoparticles, nanosheets), emphasizing the relevance of advanced nanoscale techniques for proper characterization of such materials. The multifunctionality of ZTO will also be covered, with special attention being given to their potential for photocatalysis, electronic devices and energy harvesters.

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An efficient photocatalytic degradation of organic dyes under visible light using zinc stannate (Zn2SnO4) nanorods prepared by microwave irradiation

Cited by 43 publications

References 45 publications

Ultrasound‐Assisted Green Synthesis of Ag‐Decorated ZnO Nanoparticles UsingExcoecaria agallochaLeaf Extract and Evaluation of Their Photocatalytic and Biological Activity

Ultrasound‐Assisted Green Synthesis of Ag‐Decorated ZnO Nanoparticles UsingExcoecaria agallochaLeaf Extract and Evaluation of Their Photocatalytic and Biological Activity

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

Hydrothermal Synthesis of Zinc Tin Oxide Nanostructures for Photocatalysis, Energy Harvesting and Electronics

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