Synthesis of Ag/BiOBr/CeO 2 composites with enhanced photocatalytic degradation for sulfisoxazole
A novel Ag/BiOBr/CeO composite was successfully prepared for the first time, which had excellent performance in degrading sulfisoxazole (SSX) under visible light irradiation. The as-prepared samples were characterized by SEM, XRD, UV-vis DRS and BET et al. The composite of 10% Ag/BiOBr/CeO showed th...
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Published in | Environmental science and pollution research international |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
15.02.2022
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Subjects | |
Online Access | Get full text |
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Summary: | A novel Ag/BiOBr/CeO
composite was successfully prepared for the first time, which had excellent performance in degrading sulfisoxazole (SSX) under visible light irradiation. The as-prepared samples were characterized by SEM, XRD, UV-vis DRS and BET et al. The composite of 10% Ag/BiOBr/CeO
showed the best photocatalytic activity and more than 99.5% SSX can be removed within 20 min. It exhibited the highest k value of 0.2428 min
, which was about 39.7 times higher than pure BiOBr (6.11 × 10
min
) and 22.1 times higher than BiOBr/CeO
(1.09 × 10
min
), respectively. The addition of Ag significantly improved the absorption rate of visible light and the separation rate of photogenerated electron-hole pairs. The initial pH and dosage of samples could have an influence on the photocatalytic activity. The radical trapping experiments proved that ·O
and h
were the main active species involved in photocatalytic degradation. Finally, the synthesized catalyst maintained excellent photocatalytic activity after 5 repeated cycles, which indicated the extraordinary stability and recyclability of Ag/BiOBr/CeO
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ISSN: | 1614-7499 |