Cu2−xSe/FeSe2 Z-type heterojunction demonstrate versatile boosting photoelectrochemical, electrocatalytic and photocatalytic properties

Chen, Chao; Yang, Han; Zhang, J.; Lin, Jiacen; Yang, Shuai; Xiong, Xiaoshan; Qin, Hai-Ying; Xi, Junhua; Kong, Zhe; Song, Lihui

doi:10.1016/j.jallcom.2023.169496

Cited by 25 publications

(10 citation statements)

References 81 publications

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“…Tauc plots [(αhv) 2 Vs hν (Eg)] were used to calculate the band gap values for each sample. From the Tauc plots it is found that the band gap of pure FeSe 2 , 5% Ce-FeSe 2 and 7% Ce-FeSe 2 are 1.78 eV, 1.70 eV and 1.66 eV respectively, this is in agreement with the previously reported band gap value of FeSe 2 [23,34].…”

Section: Optical Propertiessupporting

confidence: 91%

Exploring the photocatalytic degradation of organic textile dye using hydrothermally synthesized Ce-doped metal chalcogenide nanomaterial

Bhat,

Jadon,

Sharma

2024

Mater. Res. Express

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The advancement of economical, facile and non-toxic approaches towards waste water treatment is a promising research area currently among scientific community. In this regard photocatalysis has specifically received significant attention due to its application in the eradication of toxic elements from wastewater. Hence, in the present study Ce-doped FeSe2 photocatalysts were prepared employing the simple, inexpensive and ecofriendly hydrothermal method. The prepared Ce-FeSe2 nanomaterial was subjected to different characterization techniques like x-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive spectroscopy (EDS), Cyclic Voltammetry (CV) and UV–visible spectroscopy to explore the characteristic properties of the prepared nanomaterials. XRD results revealed good crystallinity and purity of all synthesized Ce-FeSe2 nanomaterials. Surface morphology and elemental composition of the prepared nanomaterials was determined by FE-SEM and EDS spectroscopy. UV-Visible spectroscopy was used to explore the optical characteristic of the prepared photocatalysts. The results of optical absorption spectrum confirmed that increasing dopant percentage shows an improvement towards optical properties. The photocatalytic ability of the prepared Ce-FeSe2 nanomaterials was examined against the potentially toxic industrial dyes like Rhoadmine B (RB). The photocatalytic results show that 95.21% of dye degradation was exhibited by 7% Ce- doped FeSe2 nanomaterial under UV-visible light illumination duration of 120 min. Findings of the photocatalytic degradation process fitted well with pseudo first order reaction kinetics for RB dye.

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Section: Optical Propertiessupporting

confidence: 91%

Exploring the photocatalytic degradation of organic textile dye using hydrothermally synthesized Ce-doped metal chalcogenide nanomaterial

Bhat,

Jadon,

Sharma

2024

Mater. Res. Express

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“…The crystal phase analysis was examined using the X-ray diffraction (XRD) technique. Figure 2a 42 Upon insertion with indium, similar peaks were observed in the diffraction patterns. However, the strength of these peaks diminished as the indium concentration increased (Figure 2b).…”

Section: ■ Results and Discussionsupporting

confidence: 65%

“…For FeSe 2 , the diffraction peaks appear at 2θ values of 24.10°, 29.26°, 31.13°, 34.91°, 36.28°, 48.24°, 50.90°, 54.06°, 57.60°, 59.98°, and 64.13°. These peaks exhibit excellent conformity with the crystal structure of orthorhombic FeSe 2 [Joint Committee on Powder Diffraction Standards (JCPDS) Powder Diffraction File (PDF) number 79-1892] . Upon insertion with indium, similar peaks were observed in the diffraction patterns.…”

Section: Resultssupporting

confidence: 52%

Three-Dimensional Indium Iron Selenide Nanoarchitecture as an Efficient and Durable Electrocatalyst for the Hydrogen Evolution Reaction

Bhat,

Majid

2023

Energy Fuels

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Metal-modified crystal lattices have shown substantial promise for increasing conductivity and electrocatalytic activity in metal selenides. Nonetheless, the search for an appropriate dopant that can precisely adjust its electronic structure for an effective hydrogen evolution reaction (HER) remains a formidable task. In this report, we explore indium (In3+) as a highly efficient candidate for FeSe2 through the single-step hydrothermal method. The successful formation of the catalyst was revealed by X-ray diffractography, electron microscopy, and X-ray photoelectron spectroscopy. By taking advantage of synergistic effects arising from the presence of bimetallic components, the optimized electrocatalyst In0.2Fe0.8Se2 showcases exceptional performance and remarkable durability for the HER. It displays a significantly low overpotential of 158 mV to achieve a current density of 10 mA cm–2, with a low Tafel slope of 74 mV dec–1. This underscores the immense promise of In0.2Fe0.8Se2 in the realm of water electrolysis.

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“…46 All photocatalysts exhibited visible light absorption properties, which confirmed their good absorption and utilization of sunlight. 48 The data were processed by the Kubelka–Munk function to obtain the band gap 49 (Fig. 6(b)): αhν = A ( hν − E g ) n /2 , where α , h , ν , E g and A are the absorption coefficient, Planck's constant, optical frequency, band gap and constant, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…46 All photocatalysts exhibited visible light absorption properties, which confirmed their good absorption and utilization of sunlight. 48 The data were processed by the Kubelka-Munk function to obtain the band gap 49 and 0 min À1 , respectively. C-Ti(I/S)-3 exhibited the highest k value, revealing that it exhibited higher photocatalytic degradation activity.…”

Section: Uv-vis Drs Analysismentioning

confidence: 99%

Carbon modified Ti(I/S) composites and their photocatalytic degradation of rhodamine B

Yang¹,

Wang²,

Xie³

et al. 2023

New J. Chem.

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Cu2−xSe/FeSe2 Z-type heterojunction demonstrate versatile boosting photoelectrochemical, electrocatalytic and photocatalytic properties

Cited by 25 publications

References 81 publications

Exploring the photocatalytic degradation of organic textile dye using hydrothermally synthesized Ce-doped metal chalcogenide nanomaterial

Exploring the photocatalytic degradation of organic textile dye using hydrothermally synthesized Ce-doped metal chalcogenide nanomaterial

Three-Dimensional Indium Iron Selenide Nanoarchitecture as an Efficient and Durable Electrocatalyst for the Hydrogen Evolution Reaction

Carbon modified Ti(I/S) composites and their photocatalytic degradation of rhodamine B

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