Photocatalytic Performance of SnO2 Coupled CdO Nanoparticles Against MY and RhB Dyes

Nallendran, R.; Selvan, G.; Balu, A. R.

doi:10.1007/s11664-019-07125-6

Cited by 16 publications

(1 citation statement)

References 40 publications

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“…The presence of Sn 4+ , Cd 2+ , and O 2− has been confirmed by the XPS spectrum of 5 mol% CdO/SnO 2 nanofibers (figure 5 The mechanism for the improved 3H-2B gas sensing characteristics of CdO/SnO 2 nanofibers may be discussed from the following two aspects: the resistance modulation of n-CdO/n-SnO 2 heterojunctions and the doping effect of Cd 2+ ions. As illustrated in figure 9, the majority of the Cd 2+ ions in CdO/SnO 2 nanofibers exist in the form of CdO; due to the difference between CdO and SnO 2 in work functions, electrons will transfer from CdO to SnO 2 until an equilibrium is reached between two Fermi levels [54]. Thus, n-n heterojunctions are formed between the electron depletion layer in CdO and the electron accumulation layer in SnO 2 .…”

Section: Resultsmentioning

confidence: 99%

One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

Jiang

Wang

Yang

2022

Mater. Res. Express

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Listeria monocytogenes (LM) is a pathogenic bacterium which can release 3-hydroxy-2-butanone (3H-2B) as a biological indicator. We report a high-performance 3H-2B gas sensing strategy for the selective detection of LM. This strategy is realized by n-CdO/n-SnO2 hetero-nanofibers with controllable compositions, synthesized via a facile one-step electrospinning method. The tailored morphologies and microstructures of CdO/SnO2 nanofibers were systematically characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). With the introduction of CdO into SnO2 nanofibers, x-ray diffraction (XRD) and x-ray photoelectron spectroscopy (XPS) were performed to investigate the effects of crystal phases and elemental states on the 3H-2B sensing properties. According to the gas sensing results, the variation of Cd/Sn molar ratios has a great influence on the 3H-2B sensing properties of CdO/SnO2 nanofibers. The maximum response (45) to 5 ppm 3H-2B is found for 5 mol% CdO/SnO2 nanofibers at 260 °C. Meanwhile, 5 mol% CdO/SnO2 nanofibers exhibit a short response/recovery time (9 s/5 s), outstanding stability, and discriminative selectivity to 3H-2B. The enhanced sensing performance is mainly attributed to the synergy between the resistance modulation of n-CdO/n-SnO2 heterojunctions and the doping effect of Cd2+ ions.

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Section: Resultsmentioning

confidence: 99%

One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

Jiang

Wang

Yang

2022

Mater. Res. Express

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Magnetically Separable CdO–TiO2–CuO Ternary Nanocomposite Photocatalyst for Effective Degradation of RhB under Visible-Light Irradiation

Balamurugan

Balu

2020

Journal of Elec Materi

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Structural, optical, electrical and catalytic properties of precursor solution-aged spray deposited undoped, Zn-doped and Ag-doped CdO thin films

Raja¹,

Nagarethinam²,

Manjula³

et al. 2020

Bull Mater Sci

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Photocatalytic Performance of SnO2 Coupled CdO Nanoparticles Against MY and RhB Dyes

Cited by 16 publications

References 40 publications

One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

Magnetically Separable CdO–TiO2–CuO Ternary Nanocomposite Photocatalyst for Effective Degradation of RhB under Visible-Light Irradiation

Structural, optical, electrical and catalytic properties of precursor solution-aged spray deposited undoped, Zn-doped and Ag-doped CdO thin films

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Photocatalytic Performance of SnO2 Coupled CdO Nanoparticles Against MY and RhB Dyes

Cited by 16 publications

References 40 publications

One-step synthesis of n-CdO/n-SnO2 heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

One-step synthesis of n-CdO/n-SnO2 heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

Magnetically Separable CdO–TiO2–CuO Ternary Nanocomposite Photocatalyst for Effective Degradation of RhB under Visible-Light Irradiation

Structural, optical, electrical and catalytic properties of precursor solution-aged spray deposited undoped, Zn-doped and Ag-doped CdO thin films

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One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing

One-step synthesis of n-CdO/n-SnO₂ heterojunction nanofibers for high-performance 3-hydroxy-2-butanone gas sensing