Microwave-assisted synthesis of pyrite FeS<sub>2</sub> microspheres with strong absorption performance

Wu, Jian; Liang, Yuxuan; Bai, Pengpeng; Zheng, Shuqi; Chen, Liqiang

doi:10.1039/c5ra14197d

Cited by 26 publications

(9 citation statements)

References 53 publications

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“…Both materials show a broad absorption from the near UV to the visible region, with the highest absorbance at c . 400 nm , . The dominant emission line of the LED (395 nm), Fig.…”

Section: Methodsmentioning

confidence: 99%

Mined pyrite and chalcopyrite as catalysts for spontaneous acidic pH adjustment in Fenton and LED photo‐Fenton‐like processes

Ltaïef

Pastrana‐Martínez

Ammar

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND The Fenton‐based processes have been extensively studied for the treatment of pollutants contained in olive mill wastewater (OMW). These processes have some limitations, such as the need for acidic pH control, the generation of a sludge, and the separation of soluble iron species. Mined pyrite (FeS2) and chalcopyrite (CuFeS2) avoid the problem associated with sludge formation and the acidic pH adjustment. The catalytic activity of pyrite and chalcopyrite was investigated for the Fenton and LED (light emitting diode) photo‐Fenton‐like oxidation of tyrosol (TY) and in the treatment of aqueous mixtures containing phenolic compounds. RESULTS The highest mineralization of TY (85%) and lowest Fe leaching (0.89 mg L‐1) was obtained by using chalcopyrite and the LED photo‐Fenton‐like process (0.50 mmol L‐1 of TY initial concentration and 19.0 mmol L‐1 of H2O2 stoichiometric dosage). Complete degradation of the phenolic pollutants and mineralization of 98% was also achieved. CONCLUSION Mined chalcopyrite can be an appropriate photo‐Fenton‐like catalyst in the degradation of phenolic compounds found in OMW because it can provide a high TOC removal, proper acidic pH conditions, low leaching of iron species and spontaneous formation of a small amount of H2O2. However, the catalyst stability must be improved to minimize the leaching of metals. © 2017 Society of Chemical Industry

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“…Both materials show a broad absorption from the near UV to the visible region, with the highest absorbance at c . 400 nm , . The dominant emission line of the LED (395 nm), Fig.…”

Section: Methodsmentioning

confidence: 99%

Mined pyrite and chalcopyrite as catalysts for spontaneous acidic pH adjustment in Fenton and LED photo‐Fenton‐like processes

Ltaïef

Pastrana‐Martínez

Ammar

et al. 2017

J of Chemical Tech & Biotech

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“…Certainly, the NCs size could be easily tuned over a low nano size range in short times with high degree of monodispersity depending on the surfactant, temperature and microwave (MW) power . Recently, Wu et al . synthesised FeS 2 microspheres (∼ 1.1 μm) via a facile microwave‐assisted solvothermal method at 200 °C for 1.5 h using anhydrous FeCl 3 (2 mmol) and PVP (0.6 g) dissolved in EG (30 mL), Na 2 S (2 mmol) and sulphur powder (4 mmol).…”

Section: Nanocrystalline Pyritementioning

confidence: 99%

Nanocrystalline Pyrite for Photovoltaic Applications

et al. 2018

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Transition metal sulfides (TMSs) are of special interest in energy conversion and storage devices. Amongst all sulfides, fool's gold or iron pyrite (FeS 2 ) is potentially an attractive candidate for photovoltaic applications. Iron pyrite has risen to prominence due to its distinct properties and abundance in nature to meet the large scale needs. It is considered as environmentally benign solar absorber material with high absorption coefficient, α > 6 x10 5 cm À 1 for λ � 700 nm and suitable energy bandgap (E g = 0.95 eV). Numerous physical and chemical methods have been employed to deposit nanocrystalline pyrite thin films directly from source materials or indirectly by sulfuration. This review gives an overview of pyrite as a low cost photovoltaic absorber material for contemporary solar cell structures. In addition, practical approaches like the rational design of nanocomposites, band gap engineering and nanostructure synthesis of pyrite for improving its properties particularly photovoltaic properties are also deliberated. Moreover, limitations, challenges, remedies and prospects of pyrite as potential photovoltaic material are also reviewed to further advance the development of pyrite-based solar cell configurations.[a] Dr.at a low precursor concentration, pyrite nanocubes (125-250 nm in 20-180 min) were obtained due to low nuclei concentration and slow growth (diffusion limited) in quasiequilibrium. The anisotropic structures nanodendrites were 2 3 4 5 6 7 8

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“…Copyright [2018] Elsevier B.V. (c) XRD patterns of the products obtained with different surfactants. Reproduced with permission from ref . Copyright [2015] Royal Society of Chemistry.…”

Section: Synthesis Of Pyritementioning

confidence: 99%

Iron Pyrite in Photovoltaics: A Review on Recent Trends and Challenges

Zaka

Alhassan

Nayfeh

2022

ACS Appl. Electron. Mater.

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With an increase in energy demand and the depletion of conventional fuels, solar cells are emerging as an excellent alternative, providing a sustainable and clean source. Solar cells consisting of different materials have been introduced in recent years, and the overall performance defined by these materials has a lot of potential to increase. Transition metal dichalcogenides have gained significant importance due to their advantageous properties and promising potential. Iron disulfide or pyrite is one such material that has risen as a favorable material for photovoltaics cells owing to its suitable band gap, high absorption coefficient, and low cost. Not only this, the “earth abundance” and nontoxicity have also increased its prospects as a photovoltaic material. This study aims to review recent progress on the synthesis of pyrite and its utilization in photovoltaics. Different methods used for the synthesis of pyrite are reviewed followed by the properties of pyrite, the challenges that hinder its efficiency, and the possibilities of further research in this area.

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Microwave-assisted synthesis of pyrite FeS₂ microspheres with strong absorption performance

Cited by 26 publications

References 53 publications

Mined pyrite and chalcopyrite as catalysts for spontaneous acidic pH adjustment in Fenton and LED photo‐Fenton‐like processes

Mined pyrite and chalcopyrite as catalysts for spontaneous acidic pH adjustment in Fenton and LED photo‐Fenton‐like processes

Nanocrystalline Pyrite for Photovoltaic Applications

Iron Pyrite in Photovoltaics: A Review on Recent Trends and Challenges

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Microwave-assisted synthesis of pyrite FeS2 microspheres with strong absorption performance

Cited by 26 publications

References 53 publications

Mined pyrite and chalcopyrite as catalysts for spontaneous acidic pH adjustment in Fenton and LED photo‐Fenton‐like processes

Mined pyrite and chalcopyrite as catalysts for spontaneous acidic pH adjustment in Fenton and LED photo‐Fenton‐like processes

Nanocrystalline Pyrite for Photovoltaic Applications

Iron Pyrite in Photovoltaics: A Review on Recent Trends and Challenges

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Product

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Microwave-assisted synthesis of pyrite FeS₂ microspheres with strong absorption performance