J. Mater. Sci. Technol. ›› 2017, Vol. 33 ›› Issue (8): 834-842.DOI: 10.1016/j.jmst.2017.03.008
• Orginal Article • Previous Articles Next Articles
Zhu Ya-Nan, Zheng Gan-Hong(), Dai Zhen-Xiang, Mu Jing-Jing, Yao Zi-Fen
Received:
2016-11-15
Revised:
2017-01-04
Accepted:
2017-02-17
Online:
2017-08-20
Published:
2017-10-31
Zhu Ya-Nan, Zheng Gan-Hong, Dai Zhen-Xiang, Mu Jing-Jing, Yao Zi-Fen. Mono-disperse SrMoO4 nanocrystals: Synthesis, luminescence and photocatalysis[J]. J. Mater. Sci. Technol., 2017, 33(8): 834-842.
Sample | S80 | S100 | S120 | S140 | S160 |
---|---|---|---|---|---|
a (?) | 5.3334 | 5.3475 | 5.3546 | 5.3573 | 5.3764 |
c (?) | 12.6395 | 12.3659 | 11.9409 | 11.7403 | 11.4030 |
Table 1 Lattice parameters for the SrMoO4 samples.
Sample | S80 | S100 | S120 | S140 | S160 |
---|---|---|---|---|---|
a (?) | 5.3334 | 5.3475 | 5.3546 | 5.3573 | 5.3764 |
c (?) | 12.6395 | 12.3659 | 11.9409 | 11.7403 | 11.4030 |
Crystal size | 17 nm | 31.49 nm | 42.8 nm | 45 nm | 200 nm | 1.5 μm | 10 μm |
---|---|---|---|---|---|---|---|
References | [ | [ | [ | [ | [ | [ | [ |
Table 2 Crystal sizes of SrMoO4 particles in previous reports.
Crystal size | 17 nm | 31.49 nm | 42.8 nm | 45 nm | 200 nm | 1.5 μm | 10 μm |
---|---|---|---|---|---|---|---|
References | [ | [ | [ | [ | [ | [ | [ |
Fig. 6. (a) Photoluminescence spectra of the S80, S100, S120, S140, and S160 samples excited with 454 nm, and the deconvolution of photoluminescence spectrum for S80 (b), S100 (c), S120 (d), S140 (e), and S160 (f) samples.
Sample | S80 | S100 | S120 | S140 | S160 |
---|---|---|---|---|---|
P (nm) | 556 | 533 | 525 | 536 | 520 |
P1 (nm) | 543 | 523 | 504 | 527 | 518 |
Area of peak-P1 (%) | 67.93 | 63.26 | 64.29 | 58.31 | 85.98 |
P2 (nm) | 589 | 563 | 538 | 581 | 579 |
Area of peak-P2 (%) | 24.89 | 24.47 | 18.78 | 38.39 | 10.64 |
P3 (nm) | 623 | 602 | 584 | 619 | 613 |
Area of peak-P3 (%) | 7.18 | 12.27 | 16.93 | 3.29 | 47.20 |
Table 3 Deconvolution of photoluminescence spectrum for the SrMoO4 samples.
Sample | S80 | S100 | S120 | S140 | S160 |
---|---|---|---|---|---|
P (nm) | 556 | 533 | 525 | 536 | 520 |
P1 (nm) | 543 | 523 | 504 | 527 | 518 |
Area of peak-P1 (%) | 67.93 | 63.26 | 64.29 | 58.31 | 85.98 |
P2 (nm) | 589 | 563 | 538 | 581 | 579 |
Area of peak-P2 (%) | 24.89 | 24.47 | 18.78 | 38.39 | 10.64 |
P3 (nm) | 623 | 602 | 584 | 619 | 613 |
Area of peak-P3 (%) | 7.18 | 12.27 | 16.93 | 3.29 | 47.20 |
Fig. 8. Absorption spectra of methyl blue with irradiation time over S80 (a), S100 (b), S120 (c), S140 (d), and S160 (e), plots of C/C0 versus the irradiation time for methyl blue aqueous solution under visible light irradiation (f).
Fig. 9. Schematic diagram of charge carrier transfer process and possible photocatalytic mechanism of SrMoO4 nanoparticles, where VB, CB, and MB are valence band, conduction band, and methyl blue,respectively.
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