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- Title
Synthesis and characterization of porous platelet-shaped α-BiO with enhanced photocatalytic activity for 17α-ethynylestradiol.
- Authors
Shi, Yingying; Luo, Lijun; Zhang, Yefei; Chen, Yu; Wang, Shan; Li, Lingxin; Long, Yanju; Jiang, Fengzhi
- Abstract
The porous platelet-shaped α-BiO photocatalyst was successfully synthesized by a novel hydrothermal-calcination method assisted with ethylenediamine and polyvinylpyrrolidone. The physical and chemical properties of α-BiO photocatalyst were characterized based on XRD, XPS, SEM, TEM, EDS, UV-Vis DRS, and PL techniques. The influence of preparation conditions on the formation of α-BiO photocatalyst was investigated, and the effect of catalyst dosage and pH value on the EE2 removal rate was also investigated. The synthesized porous platelet-shaped α-BiO photocatalyst exhibited excellent photocatalytic activity for 17α-ethynylestradiol (EE2), and 97.8% of EE2 was removed after 75 min of visible light irradiation using α-BiO as photocatalyst. The reaction rate constant over the porous platelet-shaped α-BiO photocatalyst was 11.6 and 11.4 times of that of traditional α-BiO and N-TiO, respectively. The possible photocatalytic mechanism has been discussed on the basis of the theoretical calculation and the experimental results. The porous platelet-shaped α-BiO was a stable and efficient photocatalyst, proving that it is a promising photocatalyst.
- Subjects
POROUS materials synthesis; PHOTOCATALYSTS; ETHINYL estradiol; CALCINATION (Heat treatment); ENDOCRINE disruptors analysis; OPTICAL properties of bismuth oxides
- Publication
Journal of Materials Science, 2018, Vol 53, Issue 2, p1049
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-017-1553-0