Synthesis of N-doped ZnO nanoparticles with cabbage morphology as a catalyst for the efficient photocatalytic degradation of methylene blue under UV and visible light

Prabakaran, E.; Pillay, Kriveshini

doi:10.1039/c8ra09962f

Cited by 111 publications

(48 citation statements)

References 91 publications

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“…The percentage degradation of dye concentration in the solution was calculated using Equation (1). [51][52][53] where A o and A represent absorbance of RB dye solution at time t = 0 and t = t min. Similarly, C o and C represent the concentration of RB dye solution at time t = 0 and t = t min.…”

Section: Photocatalytic Experimentsmentioning

confidence: 99%

Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO₃ ceramic supported Ag nanoparticles

et al. 2020

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Water pollution caused by textile industries poses a serious risk to aquatic and human life. 1,2 These industries discharge their waste-water-containing organic dyes into nearby natural sources of water (river, lake, etc.). 3 Many of these organic dyes are of carcinogenic nature. 1 Moreover, these organic dyes disturb aquatic life by causing eutrophication. 3 Nowadays, the photocatalysis process has emerged as an effective solution to remove harmful organic dyes pollutants from the water sources. 4-6 Many semiconductors with wider band gap values such as ZnO, 7 SrTiO 3 , 8 TiO 2 9 etc.

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Section: Photocatalytic Experimentsmentioning

confidence: 99%

Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO₃ ceramic supported Ag nanoparticles

et al. 2020

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“…In recent years, different dopants have been explored to render ZnO particles as more efficient photocatalysts such as aluminium (Sharma et al 2019), cobalt (Chithira and Theresa John 2020), iodine (Wang et al 2016 hydrothermal method (Wang et al 2016;Prabakaran and Pillay 2019;Sun et al 2020). The choice of these methods is based on the desired properties and methods which are characterized by process simplicity and lower-temperature requirements were advocated such as hydrothermal.…”

Section: Zno-based Doped Photocatalystsmentioning

confidence: 99%

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

et al. 2020

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Textile wastewaters contain refractory dyes that cause pollution and socioeconomic issues, thus calling for efficient remediation techniques such as photocatalysis. We review the fabrication, functionalization, performance and limitations of doped catalysts for degrading and mineralizing dyes. We present developments in photocatalyst immobilization and photocatalytic reactor design. Methods such as microwave irradiation, sonication and use of ionic liquids are emerging for the preparation of doped photocatalysts. Whilst single-dye systems have been extensively studied, there is limited knowledge on multipledye systems. Immobilization of photocatalysts is gaining popularity for large-scale application, but faces issues of erosion, corrosion, mechanical strength and structure integrity. Ecotoxicological studies are required in real environments to validate the potential applications of nanostructured doped photocatalysts.

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“…1,2 As a green technology, photocatalysis has been an attractive alternative approach to treat wastewater containing colorants in the last few years. [3][4][5] The widely used semiconductor-based photocatalysts include zinc oxide (ZnO) and titanium dioxide (TiO 2 ). 6,7 However, only ultraviolet or near ultraviolet fractions of sunlight can be absorbed by ZnO and TiO 2 because of their broad bandgaps (3.0-3.2 eV).…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of porous BiVO₄hollow spheres with improved visible-light photocatalytic properties

Mao

Tao

et al. 2020

RSC Adv.

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Bismuth vanadate (BiVO 4 ) hollow spheres with porous structure have been successfully fabricated by a onestep wet solution method with no surfactant and template. The structure, morphologies, and composition of the as-prepared products were studied with X-ray powder diffraction (XRD), transmission electron morphology (TEM), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS) and UV-vis spectroscopy. Based upon the time-dependent experimental results, BiVO 4 nanospheres with hollow and solid structures can be controlled effectively through the reaction time, and a reasonable formation process was suggested in this work. Moreover, the experiment of degrading methyl orange (MO) under visible-light illumination was conducted to evaluate the photocatalytic performance of the obtained BiVO 4 samples. The porous BiVO 4 hollow spheres exhibit superior visible-light photocatalytic properties for MO degradation than other photocatalysts under irradiation, and could be reused for up to five times without significant reduction in the photocatalytic activity. In addition, based on active group trapping experiments, cOH radicals as the main active species from H 2 O 2 molecules play a vital role in the photocatalytic degradation of MO, and a photocatalytic mechanism for the BiVO 4 system was proposed. High photocatalytic activity, universality and stability suggest that the porous BiVO 4 hollow spheres may have potential applications in wastewater treatment. † Electronic supplementary information (ESI) available: (1) SEM images of BiVO 4 hollow spheres; (2) XPS spectra; (3) SEM images of BiVO 4 solid spheres; (4) XRD patterns; (5) effect of H 2 O 2 amount on photocatalytic degradation rate of MO in the presence of BiVO 4 hollow spheres; (6) PL spectra. SeeFig. 5 (a) Absorption spectra of MO aqueous solutions in the presence of BiVO 4 hollow spheres, (b) degradation rate of MO at different intervals and (c) pseudo-first-order kinetic plots of MO in the presence of various photocatalysts.This journal is

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Synthesis of N-doped ZnO nanoparticles with cabbage morphology as a catalyst for the efficient photocatalytic degradation of methylene blue under UV and visible light

Abstract: In this study, the synthesis of nitrogen-doped zinc oxide nanoparticles with a cabbage like morphology (N-ZnONCBs) by a hydrothermal method using zinc acetate dihydrate as a precursor and hydrazine monohydrate as a nitrogen source is reported.

Cited by 111 publications

References 91 publications

Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO₃ ceramic supported Ag nanoparticles

Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO₃ ceramic supported Ag nanoparticles

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

Facile fabrication of porous BiVO₄hollow spheres with improved visible-light photocatalytic properties

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Synthesis of N-doped ZnO nanoparticles with cabbage morphology as a catalyst for the efficient photocatalytic degradation of methylene blue under UV and visible light

Abstract: In this study, the synthesis of nitrogen-doped zinc oxide nanoparticles with a cabbage like morphology (N-ZnONCBs) by a hydrothermal method using zinc acetate dihydrate as a precursor and hydrazine monohydrate as a nitrogen source is reported.

Cited by 111 publications

References 91 publications

Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO3 ceramic supported Ag nanoparticles

Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO3 ceramic supported Ag nanoparticles

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

Facile fabrication of porous BiVO4hollow spheres with improved visible-light photocatalytic properties

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Product

Resources

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Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO₃ ceramic supported Ag nanoparticles

Surface plasmon resonance triggered promising visible light photocatalysis of LiNbO₃ ceramic supported Ag nanoparticles

Facile fabrication of porous BiVO₄hollow spheres with improved visible-light photocatalytic properties