Preparation and characterization of Sn-doped In2.77S4 nanosheets as a visible-light-induced photocatalyst for tetracycline degradation
Semiconductor photocatalysis technology is a promising method to solve the antibiotics pollution in water. Herein, a series of Sn-doped In 2.77 S 4 (Sn-In 2.77 S 4 ) hybrid photocatalysts for tetracycline degradation have been fabricated via a one-step hydrothermal process. The analytic results exhi...
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Published in | Journal of materials science. Materials in electronics Vol. 32; no. 3; pp. 2822 - 2831 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.02.2021
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Semiconductor photocatalysis technology is a promising method to solve the antibiotics pollution in water. Herein, a series of Sn-doped In
2.77
S
4
(Sn-In
2.77
S
4
) hybrid photocatalysts for tetracycline degradation have been fabricated via a one-step hydrothermal process. The analytic results exhibit that doping Sn can improve the photocatalytic performance of In
2.77
S
4
nanosheets under the visible light illumination and the doping amount obviously affects the photocatalytic performance of the samples. When the theoretical molar ratio of Sn
4+
to In
3+
is 0.04:1 (4%), the photocatalytic efficiency of the Sn-In
2.77
S
4
photocatalyst exhibits the highest of 87.4% in comparison with 39.2% of pure In
2.77
S
4
in 20 min. Moreover, its band gap energy has been reduced to 1.56 eV from 1.75 eV and the light absorption range has been broadened. The transfer rate and separation efficiency of photo-generated electron and hole pairs of the samples have also been enhanced. In addition, the holes play a leading role in the photocatalytic degradation process. |
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ISSN: | 0957-4522 1573-482X |
DOI: | 10.1007/s10854-020-05035-6 |