J. Mater. Sci. Technol. ›› 2020, Vol. 39: 28-38.DOI: 10.1016/j.jmst.2019.04.043
• Research Article • Previous Articles Next Articles
Jianying Huanga1, Jiali Shenab1, Shuhui Liac, Jingsheng Caib, Shanchi Wangb, Yao Luc, Jihuan Heb, Claire J.Carmaltc, Ivan P.Parkinc, Yuekun Laia*()
Received:
2019-03-02
Revised:
2019-03-22
Accepted:
2019-04-23
Published:
2020-02-15
Online:
2020-03-11
Contact:
Lai Yuekun
About author:
1 The authors contributed equally to this work.
Jianying Huang, Jiali Shen, Shuhui Li, Jingsheng Cai, Shanchi Wang, Yao Lu, Jihuan He, Claire J.Carmalt, Ivan P.Parkin, Yuekun Lai. TiO2 nanotube arrays decorated with Au and Bi2S3 nanoparticles for efficient Fe3+ ions detection and dye photocatalytic degradation[J]. J. Mater. Sci. Technol., 2020, 39: 28-38.
Fig. 2. SEM images of 0.01 wt% Au/Bi2S3@TiO2 NTAs in different magnifications (a, b). Corresponding EDX spectrum (c) and mapping (d) of Au/Bi2S3@TiO2 NTAs.
Fig. 7. The reusability of Au/Bi2S3@TiO2 NTAs under visible light (a) and UV (b) irradiation for 8 h. The influences of different scavengers (c) on the degradation of MB over Au/Bi2S3@TiO2 NTAs.
Fig. 8. Fluorescence intensity changes (I0/I) of the Au/Bi2S3@TiO2 NTAs after being immersed into Cu+, Al3+, K+, Pb2+, Cu2+, Fe3+, Ni2+, Cd2+, NH4+, Mn2+ and Zn2+ aqueous solution.
Fig. 9. UV-vis spectra of the Au/Bi2S3@TiO2 NTAs with different concentrations of Fe3+ from 4000 μM to 30 μM (a). Fluorescence quenching of the Au/Bi2S3@TiO2 NTAs with Fe3+ ions (0-400 mM) (b). Fluorescence response of the Au/Bi2S3@TiO2 NTAs in the existence of 600 μM Fe3+ with/without multifarious metal ions in aqueous media (c). The fluorescence properties of the Au/Bi2S3@TiO2 NTAs at different pH range (1-11) (d).
Fig. 10. Linear relation (a) of the Au/Bi2S3@TiO2 NTAs by adding different concentrations of Fe3+ when excited at 380 nm. Double logarithm regression plot (b) between log [(Io - I)/I] vs log [C].
Type of probe | Limit of detection (μM) | Method of synthesis | References |
---|---|---|---|
Eu-MOFs | 45 | Heating method | [ |
Red emissive carbon dots | 0.45 | Solvothermal method | [ |
Water-soluble carbon dots | 6.05 | Hydrothermal oxidation | [ |
Conjugated polymer thin film | 5.3 | Direct electropolymerization | [ |
Au/Bi2S3@TiO2 NTAs | 0.221 | Soaking method | This work |
Table 1 Comparison of features of Fe3+ ions detection.
Type of probe | Limit of detection (μM) | Method of synthesis | References |
---|---|---|---|
Eu-MOFs | 45 | Heating method | [ |
Red emissive carbon dots | 0.45 | Solvothermal method | [ |
Water-soluble carbon dots | 6.05 | Hydrothermal oxidation | [ |
Conjugated polymer thin film | 5.3 | Direct electropolymerization | [ |
Au/Bi2S3@TiO2 NTAs | 0.221 | Soaking method | This work |
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