Acta Metallurgica Sinica (English Letters) ›› 2018, Vol. 31 ›› Issue (11): 1207-1214.DOI: 10.1007/s40195-018-0751-3
Special Issue: 2017-2018非晶专辑
• Orginal Article • Previous Articles Next Articles
Sheng-Hui Xie1(), Guang-Qiang Peng1, Xian-Meng Tu1, Hai-Xia Qian1, Xie-Rong Zeng1
Received:
2018-03-04
Revised:
2018-04-01
Online:
2018-11-01
Published:
2018-11-08
Sheng-Hui Xie, Guang-Qiang Peng, Xian-Meng Tu, Hai-Xia Qian, Xie-Rong Zeng. Fe-Based Powders Prepared by Ball-Milling with Considerable Degradation Efficiency to Methyl Orange Compared with Fe-Based Metallic Glasses[J]. Acta Metallurgica Sinica (English Letters), 2018, 31(11): 1207-1214.
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Fig. 1 a XRD patterns of the as-prepared metallic glass powders. b XRD patterns of the as-prepared crystalline powders (a Fe43.64B56.36 before ball-milling, b Fe90B10 after ball-milling, c Fe70B30 after ball-milling, d Fe43.64B56.36 after ball-milling, e Fe70Si10B20 after ball-milling, f Fe70Si30 after ball-milling), c SEM surface morphology of the Fe-B C-ZVI powders after ball-milling. d EDS iron surface analysis at the same area of (c)
Fig. 2 The size distribution and surface morphologies of the powders after ball-milling; a Fe90B10 C-ZVI, b Fe70B30 C-ZVI, c Fe43.64B56.36 C-ZVI, d Fe70Si30 C-ZVI, e Fe70Si10B20 G-ZVI, f Fe70Si10B20 C-ZVI
Fig. 3 a Comparison of the UV absorption spectra for the as-prepared and completely degraded MO solutions with Fe43.64B56.36 C-ZVI; inset with the appearance and color change before and after the degradation. b The dependence of the decolorization ratio of different ZVI powders. c The fitting chart of the MO residual concentration for different ZVI powders. d The fitting chart of the MO residual concentration for Fe73B17Nb3Si7 and (Fe0.99Mo0.01)78Si9B13 G-ZVI and C-ZVIs
Sample composition | C0 (mg/L) | Cultimate (mg/L) | k (min-1) | t1/2 (min) | r 2 |
---|---|---|---|---|---|
Fe90B10 C-ZVI | 20.0 | 2.0128 | 0.068 | 10.2 | 0.9761 |
Fe70B30 C-ZVI | 20.0 | 0.2855 | 0.134 | 5.2 | 0.9966 |
Fe43.64B56.36 C-ZVI | 20.0 | 0.2006 | 0.213 | 3.3 | 0.9967 |
Fe70Si30 C-ZVI | 20.0 | 2.0653 | 0.046 | 15.1 | 0.9884 |
Fe70Si10B20 G-ZVI | 20.0 | 1.0978 | 0.100 | 6.9 | 0.9864 |
Fe70Si10B20 C-ZVI | 20.0 | 0.3172 | 0.099 | 7.0 | 0.9976 |
Table 1 Results of the nonlinear regression of the degradation curves and the half-life periods (t1/2)
Sample composition | C0 (mg/L) | Cultimate (mg/L) | k (min-1) | t1/2 (min) | r 2 |
---|---|---|---|---|---|
Fe90B10 C-ZVI | 20.0 | 2.0128 | 0.068 | 10.2 | 0.9761 |
Fe70B30 C-ZVI | 20.0 | 0.2855 | 0.134 | 5.2 | 0.9966 |
Fe43.64B56.36 C-ZVI | 20.0 | 0.2006 | 0.213 | 3.3 | 0.9967 |
Fe70Si30 C-ZVI | 20.0 | 2.0653 | 0.046 | 15.1 | 0.9884 |
Fe70Si10B20 G-ZVI | 20.0 | 1.0978 | 0.100 | 6.9 | 0.9864 |
Fe70Si10B20 C-ZVI | 20.0 | 0.3172 | 0.099 | 7.0 | 0.9976 |
Fig. 4 X-ray photoelectron spectra of the Fe-B C-ZVI surfaces before and after degradation: a X-ray photoelectron spectra survey scan, b Fe 2p and c B 1s photoelectron spectra
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