Eco-friendly and green synthesis of BiVO4 nanoparticle using microwave irradiation as photocatalayst for the degradation of Alizarin Red S

Abraham, S. Daniel; David, S. Theodore; Bennie, R. Biju; Joel, C.; Kumar, Dinesh

doi:10.1016/j.molstruc.2016.01.053

Cited by 62 publications

(9 citation statements)

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“…By dropping the electrolyte on the ATR crystal (Figure a), the peak of bulk water (H 2 16 O) was generated at the wavenumber of 1640 cm –1 for the mode of 16 OH bending, in which the peak at the wavenumber of <900 cm –1 could also be derived from bulk H 2 16 O, while the mode was not clarified. , The spectrum also shows the peak for the mode of stretching by a sulfate anion (SO 4 2– ) at the wavenumber of 1100 cm –1 . When the electrode was contacted on the ATR crystal in the presence of the electrolyte (Figure b), the peak for the mode of VO 4 3– stretching by m-BiVO 4 was observed with those of the electrolyte (H 2 16 O and SO 4 2– ). − It indicates that, as illustrated in Figure , the electrolyte penetrates at the interface between the electrode and the crystal to generate both the peaks for the electrolyte and m-BiVO 4 . The porous morphology of the film enabled the electrolyte to penetrate at the interface (Figure ).…”

Section: Resultsmentioning

confidence: 99%

“…Production of the structure can be confirmed by measuring in situ infrared spectra using the setup of internal reflectance. Infrared spectroscopy is useful to qualify chemical species. ,− The internal reflectance setup enables us to detect only the chemical species nearby the attenuated total reflectance (ATR) crystal, as infrared light of the evanescent wave is generated only nearby the surface of the crystal. In situ spectra using the setup have been measured for photocatalytic, − photo-electrochemical, , or electrochemical reactions − under the contact of photocatalysts or electrodes with ATR crystals, in which the infrared light nearby the crystal is absorbed by the product in the reactions to generate absorption peaks in the spectra.…”

Section: Introductionmentioning

confidence: 99%

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In Situ Infrared Analysis for the Process of Water Photo-oxidation on Monoclinic Bismuth Vanadate

et al. 2021

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The process of the water photo-oxidation on monoclinic bismuth vanadate (m-BiVO4) was investigated in detail by measuring in situ infrared spectra. To measure the spectra, a setup of internal reflectance was employed with a photo-electrochemical cell. A porous m-BiVO4 electrode using a transparent oxide conductive substrate was contacted with an attenuated total reflectance crystal. Electrolytes penetrated at the interface between the electrode and the crystal, due to the porous morphology of the electrode. A potential was applied under irradiation of an incident light from the back side of the electrode during the measurement of the spectra. Absorption peaks were observed in the spectra for the electrolyte of water (H2 16O) with generating the photo-current by the oxidation of H2 16O. By considering the positions of the peaks in the spectra for the electrolytes of heavy oxygen water (H2 18O) and deuterium oxide (D2 16O), it was considered that the peaks were generated by production of hydroperoxo structures on the surface of m-BiVO4 (BiOOH and/or VOOH). The structures can be related to the generation of oxygen (O2), hydrogen peroxide (H2O2), and a hydroxyl (OH) radical in the water oxidation. Finally, a plausible process was proposed for the water oxidation on m-BiVO4.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In Situ Infrared Analysis for the Process of Water Photo-oxidation on Monoclinic Bismuth Vanadate

et al. 2021

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“…The vials containing dyes + Fe 2 O 3 ‐Np were incubated under illuminated conditions for 30 min and absorbance was measured at 554, 525, 590 and 570 nm for RB, AO, CV and PR, respectively, using UV–Vis spectrophotometer. The decolourisation efficiency was calculated using the formula: ( A 0 − A t )/ A 0 × 100, where A 0 is the absorbance before irradiation and A t is the absorbance at time t [15]. The absorbance contributed by nanoparticles was subtracted from test solution (kept as control) in the experiment.…”

Section: Methodsmentioning

confidence: 99%

Photocatalytic degradation of synthetic dyes using iron (III) oxide nanoparticles (Fe ₂ O ₃ ‐Nps) synthesised using Rhizophora mucronata Lam

Nathan

Parvathi

Jasna

2018

IET nanobiotechnol.

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Biosynthesis of nanoparticles through plant extracts is gaining attention due to the toxic free synthesis process. The environmental engineering applications of many metal oxide nanoparticles have been reported. In this study, iron oxide nanoparticles (Fe 2 O 3-Nps) were synthesised using a simple biosynthetic method using a leaf extract of a mangrove plant Rhizophora mucronata through reduction of 0.01 M ferric chloride. Fe 2 O 3-Np synthesis was revealed by a greenish colour formation with a surface plasmon band observed close to 368 nm. The stable Fe 2 O 3-Np possessed excitation and emission wavelength of 368.0 and 370.5 nm, respectively. The Fourier-transform infrared spectral analysis revealed the changes in functional groups during formation of Fe 2 O 3-Np. Agglomerations of nanoparticles were observed during scanning electron microscopic analysis and energy-dispersive X-ray spectroscopic analysis confirmed the ferric oxide nature. The average particle size of Fe 2 O 3-Np based on dynamic light scattering was 65 nm. Based on transmission electron microscopic analysis, particles were spherical in shape and the crystalline size was confirmed by selected area electron diffraction pattern analysis. The synthesised Fe 2 O 3-Np exhibited a good photodegradation efficiency with a reduction of 83 and 95% of phenol red and crystal violet under irradiation of sunlight and florescent light, respectively. This report is a facile synthesis method for Fe 2 O 3-Np with high photodegradation efficiency.

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“…This is motivated by the interaction of microwaves with reactants at the molecular level. Electromagnetic energy is transferred and turned into heat by rapid kinetic collisions between molecules, thus caused an explosion followed by the evolution of gases to form nanostructures (Abraham et al, 2016). The microwave irradiation method uses commercially available precursors, short reaction times with low operating temperatures, produced products with high quantity and purity (Roy et al, 2008), is environmentally friendly, and reduces the risk during the production process (Savalia et al, 2013).…”

Section: Mineral Quantitymentioning

confidence: 99%

Techno-economic Analysis on the Production of Zinc Sulfide Nanoparticles by Microwave Irradiation Method

Nurdiana¹,

Astuti²,

Dewi³

et al. 2021

ASEAN J. Sci. Eng.

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Zinc sulfide is a semiconductor that is widely used in various fields. Synthesis of zinc sulfide nanoparticles by microwave irradiation method has promising prospects because of its advantages, such as commercially available precursors, short reaction times, low operating temperatures, and produced high quantity and high-quality products. The purpose of this study was to evaluate the feasibility of the production of zinc sulfide from zinc nitrate hexahydrate and thioacetamide by microwave irradiation method. The evaluation was done from the engineering and economic perspectives. The feasibility analysis method from the engineering perspective was done by designing the initial production design on a large scale, whereas the analysis from an economic perspective was done by calculating various economic parameters (i.e., Gross Profit Margin, Cumulative Net Present Value, Internal Rate Return, Payback Period, Break Event Point, and Profitability Index). The engineering perspective showed that the production of zinc sulfide nanoparticles can be done on a large scale due to the commercial availability of materials and tools. Based on the economic evaluation, this project is ideal for an industrial scale. The profits increased over 20 years and the payback period was achieved within two years. We hope this study can provide references to readers, industry, and researchers regarding the feasibility analysis of the production of zinc sulfide nanoparticles by microwave irradiation method on a large scale.

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Eco-friendly and green synthesis of BiVO4 nanoparticle using microwave irradiation as photocatalayst for the degradation of Alizarin Red S

Cited by 62 publications

References 32 publications

In Situ Infrared Analysis for the Process of Water Photo-oxidation on Monoclinic Bismuth Vanadate

In Situ Infrared Analysis for the Process of Water Photo-oxidation on Monoclinic Bismuth Vanadate

Photocatalytic degradation of synthetic dyes using iron (III) oxide nanoparticles (Fe ₂ O ₃ ‐Nps) synthesised using Rhizophora mucronata Lam

Techno-economic Analysis on the Production of Zinc Sulfide Nanoparticles by Microwave Irradiation Method

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Eco-friendly and green synthesis of BiVO4 nanoparticle using microwave irradiation as photocatalayst for the degradation of Alizarin Red S

Cited by 62 publications

References 32 publications

In Situ Infrared Analysis for the Process of Water Photo-oxidation on Monoclinic Bismuth Vanadate

In Situ Infrared Analysis for the Process of Water Photo-oxidation on Monoclinic Bismuth Vanadate

Photocatalytic degradation of synthetic dyes using iron (III) oxide nanoparticles (Fe 2 O 3 ‐Nps) synthesised using Rhizophora mucronata Lam

Techno-economic Analysis on the Production of Zinc Sulfide Nanoparticles by Microwave Irradiation Method

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Product

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Photocatalytic degradation of synthetic dyes using iron (III) oxide nanoparticles (Fe ₂ O ₃ ‐Nps) synthesised using Rhizophora mucronata Lam