1. Influence of Gd3+ Ions Substitution on the Structure and Properties of Bi-BTC for Photocatalysts.
- Author
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Du, Haiying, Zhang, Xiaochao, He, Xiaokang, Liang, Chaoxian, Zhang, Peicong, and Lei, Ningfei
- Subjects
IONIC structure ,X-ray spectra ,CHARGE transfer ,VISIBLE spectra ,PHOTOCATALYSTS ,X-ray diffraction - Abstract
A novel material Bi
1-x Gdx -BTC was obtained in situ via the solvothermal method. The effects of Gd3+ substitution on the Bi-BTC structure and photocatalytic properties of Bi1-x Gdx -BTC were investigated. A standard Bi-BTC structure was observed in the X-ray diffraction spectra of the Bi1-x Gdx -BTC(x ≤ 0.07). However, some diffraction peaks were changed when the x is more than 0.07 due to the different ion radius. The developed Bi1-x Gdx -BTC samples exhibited higher photocatalytic activity than the pure Bi-BTC material. In RhB degradation experiments, the Bi1-x Gdx -BTC(x = 0.03 and x = 0.05) materials show degradation efficiency conversion of 71% within 60 min under visible light. The high photodegradation efficiency of Bi1-x Gdx -BTC could be ascribed to efficient charge transfer between Bi(III) ions and Gd(III) ions. Moreover, an active species trapping experiment confirmed that photo-generated ·O2- and ·OH is the major species involved in RhB degradation. [ABSTRACT FROM AUTHOR]- Published
- 2021
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