CIESC Journal ›› 2022, Vol. 73 ›› Issue (8): 3636-3646.DOI: 10.11949/0438-1157.20220358
• Catalysis, kinetics and reactors • Previous Articles Next Articles
Xin ZHANG1(), Rui XU1, Xinyu LU1, Yong'an NIU2()
Received:
2022-03-10
Revised:
2022-06-17
Online:
2022-09-06
Published:
2022-08-05
Contact:
Yong'an NIU
通讯作者:
牛永安
作者简介:
张鑫(1983—),女,博士,副教授,zhangxin0406@126.com
基金资助:
CLC Number:
Xin ZHANG, Rui XU, Xinyu LU, Yong'an NIU. Synthesis and photocatalysis of SiO2@BiOCl-Bi24O31Cl10 core-shell microspheres[J]. CIESC Journal, 2022, 73(8): 3636-3646.
张鑫, 许蕊, 路馨语, 牛永安. SiO2@BiOCl-Bi24O31Cl10核壳微球的合成及光催化[J]. 化工学报, 2022, 73(8): 3636-3646.
样品 | Bi(NO3)3·5H2O/g | SiO2/g | 投料比x |
---|---|---|---|
SB-0.8 | 0.3032 | 0.0500 | 0.8 |
SB-1.0 | 0.4043 | 0.0500 | 1.0 |
SB-1.5 | 0.6065 | 0.0500 | 1.5 |
SB-2.0 | 0.8086 | 0.0500 | 2.0 |
Table 1 Reaction parameters of some SiO2@Bi2O3 sample precursors
样品 | Bi(NO3)3·5H2O/g | SiO2/g | 投料比x |
---|---|---|---|
SB-0.8 | 0.3032 | 0.0500 | 0.8 |
SB-1.0 | 0.4043 | 0.0500 | 1.0 |
SB-1.5 | 0.6065 | 0.0500 | 1.5 |
SB-2.0 | 0.8086 | 0.0500 | 2.0 |
样品 | 氨水/ml | Bi(NO3)3∙5H2O/g | NaCl/g | SiO2∶Bi(NO3)3∙5H2O∶NaCl(摩尔比) |
---|---|---|---|---|
SBC-1 (SBC-1-0.5) | 0.5 | 0.4043 | 0.0488 | 1∶1∶1 |
SBC-2 | 0.5 | 0.4043 | 0.0975 | 1∶1∶2 |
SBC-3 | 0.5 | 0.4043 | 0.1462 | 1∶1∶3 |
SBC-4 | 0.5 | 0.4043 | 0.1950 | 1∶1∶4 |
SBC-1-1 | 1.0 | 0.4043 | 0.0488 | 1∶1∶1 |
SBC-1-2 | 2.0 | 0.4043 | 0.0488 | 1∶1∶1 |
SBC-1-3 | 3.0 | 0.4043 | 0.0488 | 1∶1∶1 |
Table 2 Specific feeding parameters of SiO2@BiOCl-Bi24O31Cl10 sample precursors
样品 | 氨水/ml | Bi(NO3)3∙5H2O/g | NaCl/g | SiO2∶Bi(NO3)3∙5H2O∶NaCl(摩尔比) |
---|---|---|---|---|
SBC-1 (SBC-1-0.5) | 0.5 | 0.4043 | 0.0488 | 1∶1∶1 |
SBC-2 | 0.5 | 0.4043 | 0.0975 | 1∶1∶2 |
SBC-3 | 0.5 | 0.4043 | 0.1462 | 1∶1∶3 |
SBC-4 | 0.5 | 0.4043 | 0.1950 | 1∶1∶4 |
SBC-1-1 | 1.0 | 0.4043 | 0.0488 | 1∶1∶1 |
SBC-1-2 | 2.0 | 0.4043 | 0.0488 | 1∶1∶1 |
SBC-1-3 | 3.0 | 0.4043 | 0.0488 | 1∶1∶1 |
Fig.10 The photocatalytic degradation curves and apparent rate constants of RhB obtained by SiO2@Bi2O3 with different heat treatment temperatures, SiO2@BiOCl-Bi24O31Cl10(450)-y with different feed mole ratios and SiO2@BiOCl-Bi24O31Cl10(450)-1-z with different ammonia additions
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